US Pat. No. 9,530,550

REMOTE CONTROL KIT

Grand Mate Co., LTD., Ta...

1. A remote control kit, comprising:
a magnetic holder, and
a remote control including a case and a ferromagnetic member comprising a battery, wherein the case has a chamber therein
to receive the ferromagnetic member, and the remote control is attached to the magnetic holder via the magnetic force between
the magnetic holder and the ferromagnetic member;

wherein the remote control is detachably secured to the magnetic holder solely by the magnetic force between the battery and
a magnet of the magnetic holder has sufficient strength to secure the remote control.

US Pat. No. 9,249,988

DIRECT VENT/POWER VENT WATER HEATER AND METHOD OF TESTING FOR SAFETY THEREOF

Grand Mate Co., Ted., Ta...

1. A water heater, comprising:
a combustor;
a gas valve provided on a gas pipe to control a gas supply to the combustor;
a blower having a motor to provide air to the combustor;
a detector directly sensing a speed of the motor of the blower; and
an operating device having a calculating unit electrically connected to the detector, wherein the operating device is stored
with reference speed ranges of the blower under various gas supplies to control the gas valve;

wherein the reference speed range of the blower is between a low critical speed and a high critical speed of the motor of
the blower;

wherein the low critical speed is a minimum allowable speed of the motor for an aged blower, and is greater than zero; and
an exhaust pipe to exhaust waste gas of the combustor, and the high critical speed is a maximum allowable speed of the motor
before the exhaust pipe is jammed;

wherein the operating device determines whether the blower is working normal or not based on the speed sensed by the detector
which is sensed after a predetermined speed up time of the motor, and the operating device determines that the blower works
normally when the sensed speed is within the reference range of the blower, and determines to control the gas valve to cut
off the gas supply when the sensed speed is outside the reference speed range of the blower.

US Pat. No. 9,086,068

METHOD OF DETECTING SAFETY OF WATER HEATER

GRAND MATE CO., LTD., Ta...

1. A method of detecting safety of a water heater, wherein the water heater includes a blower and a combustor, the method
comprising the steps of:
A. starting the blower, and detecting a speed of the blower after the blower has run for a time wherein gas is not supplied
yet;

B. comparing the speed of the blower with a first speed range, and then start supplying gas to the combustor when the speed
of the blower is within the first speed range, or not supplying gas and stopping the blower when the speed of the blower is
beyond the first speed range; and

C. detecting a speed of the blower again after the combustor heats water for a certain amount of time, and comparing the speed
of the blower with a second speed range, and then continuing to supply gas to the combustor and keeping the speed of the blower
when the speed of the blower is within the second speed range, or stopping to supply gas when the speed of the blower is beyond
the second speed range;

wherein a first theoretical speed falls in the first speed range, and the first theoretical speed is an expected speed of
the blower before the combustor starts to heat water, and the blower has run for a certain amount of time;

wherein a second theoretical speed falls in the second speed range, and the second theoretical speed is an expected speed
of the blower when the combustor burns under an optimal air-gas ratio;

wherein the first speed range is between a first lowest acceptable speed and a first highest acceptable speed of the blower
before ignition; and

wherein the second speed range is between a second lowest acceptable speed and a second highest acceptable speed of the blower
while the combustor is burning gas.

US Pat. No. 9,373,249

WI-FI/RADIO FREQUENCY CONVERTING DEVICE

GRAND MATE CO., LTD., Ta...

1. A Wi-Fi/radio frequency converting device, comprising:
a Wi-Fi transceiver which receives a Wi-Fi control signal from a control signal generator;
a multiplexing converting module which receives the Wi-Fi control signal from the Wi-Fi transceiver and converts the Wi-Fi
control signal into a radio frequency control signal;

a radio frequency transceiver which receives the radio frequency control signal from the multiplexing converting module and
sends the radio frequency control signal to a plurality of electric elements; and

a radio frequency extension device detachably connected to the multiplexing converting module to receive the radio frequency
control signal from the multiplexing converting module, wherein at least one of the electric elements receives the radio frequency
control signal from the radio frequency extension device, and the rest electric elements receive the radio frequency control
signal from the radio frequency transceiver.

US Pat. No. 9,157,823

PRESSURE GAUGE AND METHOD OF MEASURING PRESSURE

GRAND MATE CO., LTD., Ta...

1. A pressure gauge for measuring a pressure of a source, comprising:
a case having a bore connecting the source;
a coil, which is made of a conductor, provided in the case;
a flexible film provided on an inner side of the case to cover the bore that the flexible film is expandable by the pressure
of the source; and

a magnetic device received in the case to be moved by the flexible film;
wherein the pressure of the source expands the flexible film to move the magnetic device relative to the coil that the coil
generates an induced electromotive force directly proportional to the pressure of the source;

a processor electrically connected to the coil to receive the induced electromotive force and thereby calculate the pressure
of the source according to the induced electromotive force; and

a screen electrically connected to the processor to show the pressure.

US Pat. No. 9,158,312

METHOD AND DEVICE FOR CONTROLLING OUTLET WATER TEMPERATURE OF WATER HEATER

GRAND MATE CO., LTD., Ta...

1. A method of controlling an outlet water temperature of a water heater, comprising the steps of: setting a desired temperature;
sensing an inlet water temperature and a water flow rate; calculating a total heat for heating water from the inlet water
temperature to the desired temperature in a predetermined heating time based on the inlet water temperature, the water flow
rate, and the desired temperature, while the water flow rate remains the same; calculating a total gas consumption from the
total heat, and then dividing the total gas consumption by the predetermined heating; time to obtain a gas supply per unit
time; supplying gas to a burner for heating water according to the gas supply per unit time until the gas reaches the total
gas consumption; sensing the outlet water temperature; controlling gas supplied to the burner for maintaining the outlet water
temperature; and wherein the predetermined heating time is divided into a fast stage and a slow stage where said fast stage
is prior to said slow stage where the gas supply per unit time in the fast stage is greater than the gas supply per unit time
in the slow stage, and where the gas supply per unit of time is greater than zero; and wherein the gas supply per unit time
is constant during the fast stage and during the slow stage; and wherein switching from the fast stare to the slow stare is
based on a percentage of the sensed outlet water temperature to the desired temperature.

US Pat. No. 9,347,584

GAS REGULATOR

GRAND MATE CO., LTD., Ta...

1. A gas regulator, which is set between a gas source and a gas appliance, comprising:
a valve block including an input gateway, an output gateway, and a pressure reducing chamber, wherein the input gateway communicates
with the gas source, and the output gateway communicates with the gas appliance;

a membrane provided in the pressure reducing chamber, which divides the pressure reducing chamber into a first sub-chamber
and a second sub-chamber, wherein the first sub-chamber communicates the input gateway with the output gateway, and the membrane
deforms due to a change of a pressure in the first sub-chamber;

a metal coil provided in either the first sub-chamber or the second sub-chamber;
a movable member having a magnetic element received in the metal coil, wherein the movable member is connected to the membrane,
and is moved relatively to the metal coil when the membrane deforms;

a shielding member provided in the first sub-chamber, wherein the shielding member is moved by the membrane to change an output
gas flow of the input gateway; and

a processor electrically connected to the metal coil, wherein the processor receives an induced emf generated by the metal
coil to obtain a gas pressure value of the gas source.

US Pat. No. 9,345,362

TEMPERATURE-CONTROLLABLE GAS GRILL AND THE METHOD OF CONTROLLING TEMPERATURE

GRAND MATE CO., LTD., Ta...

1. A temperature-controllable gas grill, which is connected to a gas pipe, comprising:
a base;
a cover provided on the base to form a grilling chamber between the base and the cover;
a gas valve connected to the gas pipe;
at least a burner provided in the base and connected to the gas valve; and
a temperature controlling device including a gas controller, a temperature sensor, and a main controller;
the gas controller having a body and a solenoid valve, wherein the body has a first port, a second port, a first passage,
and a second passage; the first port is connected to the gas valve; the second port is connected to the burner; the first
passage and the second passage respectively connect the first port to the second port; the solenoid valve is provided in the
first passage to be controlled to open and close the first passage;

the temperature sensor sensing a temperature in the grilling chamber and providing a temperature signal accordingly;
the main controller electrically connected to the temperature sensor to receive the temperature signal, wherein the main controller
turns the solenoid valve on or off according to the temperature signal to control the temperature in the grilling chamber;

the main controller has an input unit for a user to input a setting temperature, and the main controller creates an upper
limited temperature and a lower limited temperature according to the setting temperature; and

the main controller has a signal generating unit to periodically provide an activating signal to alternately turn the solenoid
valve on and off in order to repeatedly open and close the first passage when the temperature sensed by the temperature sensor
is between the lower limited temperature and the upper limited temperature.

US Pat. No. 9,898,927

WI-FI/RADIO FREQUENCY CONVERTING DEVICE

GRAND MATE CO., LTD., Ta...

1. A Wi-Fi/radio frequency converting device, comprising:
a Wi-Fi transceiver which receives a Wi-Fi control signal from a control signal generator, wherein the Wi-Fi control signal
contains at least one command;

a multiplexing converting module electrically connected to the Wi-Fi transceiver, wherein the multiplexing converting module
receives the Wi-Fi control signal from the Wi-Fi transceiver and converts the Wi-Fi control signal into a first wireless control
signal or a second wireless control signal corresponding to the at least one command;

a radio frequency transceiver, which is electrically connected to the multiplexing converting module, and is wirelessly connected
to at least one electric appliance through radio frequency signals, wherein the radio frequency transceiver receives the first
wireless control signal from the multiplexing converting module, and transmits the first wireless control signal to the at
least one electric appliance, and

a wireless extension device, which is detachably electrically connected to the multiplexing converting module, and is wirelessly
connected to another at least one electric appliance, wherein the wireless extension device transmits the second wireless
control signal, which is sent out by the multiplexing converting module and corresponds to the another at least one, to the
another at least one electric appliance.

US Pat. No. 9,500,566

SERVICE METHOD OF GAS APPLIANCES

Grand Mate Co., Ltd., Ta...

1. A service method of a gas appliance, wherein the gas appliance includes a heater and a controller; the heater burns gas
to supply a room with hot air, and the controller controls the heater to keep the room in a desired temperature, the service
method comprising the steps of:
detecting the heater and the controller of the gas appliance, and generating a detecting signal accordingly;
examining the detecting signal to find whether the gas appliance has an abnormal condition;
generating service information if the abnormal condition is found; and
transmitting the detecting signal from a client end to a service end, and identifying which client end the detecting signal
comes from.

US Pat. No. 9,215,586

METHOD OF OBTAINING DATA OF HOME APPLIANCE

GRAND MATE CO., LTD., Ta...

1. A method of obtaining data of a home appliance, comprising the steps of:
A. continuously sensing the home appliance to obtain running data of the home appliance and transmitting the running data
to an interpreter;

B. saving the running data as a plurality of history logs;
C. connecting an electronic device to the interpreter;
D. sending a retrieval command from the electronic device to the interpreter via a network;
E. transmitting the specific history log from the interpreter to the electronic device according to the retrieval command;
and

wherein the running data are transmitted to the interpreter periodically in the step A; the history logs include the running
data and a time stamp of each transmission; and a total operating time of the home appliance is calculated according to the
time stamps of the history logs in the step E.

US Pat. No. 9,784,455

SWITCHING ASSEMBLY OF GAS STOVE

GRAND MATE CO., LTD., Ta...

1. A switching assembly of a gas stove, comprising:
a regulating valve having a valve member and a regulating member, wherein the regulating member is received in the valve member,
and rotatable to regulate a gas flow through the valve member;

a shaft having an end connected to the regulating member;
a knob connected to an opposite end of the shaft to be turned to rotate the regulating member;
a stop board located between the valve member of the regulating valve and the knob, wherein the stop has a curved slot, which
has a first stop portion, a second stop portion, and a third stop portion; and

a restricting device connected to the knob and engaged in the curved slot of the stop board, wherein the restricting device
is movable in the curved slot either between the second stop portion and the third stop portion, or between the first stop
portion and the third stop portion;

wherein the knob is turnable within a first internal if the restricting device is movable between the second stop portion
and the third stop portion, and is turnable within a second internal if the restricting device is movable between the first
stop portion and the third stop portion;

wherein when the knob is turnable within the second interval, a maximum gas flow which the regulating valve is able to supply
is larger than that when the knob is turnable within the first interval.

US Pat. No. 9,476,590

METHOD OF TESTING AND COMPENSATING GAS SUPPLY OF GAS APPLIANCE FOR SAFETY

GRAND MATE CO., LTD., Ta...

1. A method of testing gas supply of a residential gas appliance, wherein the residential gas appliance has a control unit
storing an ideal range of gas flow rate, and wherein a pipeline is connected to the gas appliance to supply gas to the gas
appliance, the method comprising the steps of:
controlling a cross section of the pipeline with an adjustable gas regulator;
monitoring a flow rate of the gas flowing through the cross section of the pipeline, while the cross section of the pipeline
remains unchanged due to control of the gas regulator, to generate a detected gas flow rate;

comparing the detected gas flow rate with the ideal range of gas flow rate;
providing an alarm when the detected gas flow rate is higher than a high limit of the ideal range or is lower than a low limit
of the ideal range of gas flow rate, wherein the alarm is provided in response to the detected gas flow being outside of the
ideal range;

reducing the flow rate of the gas flow in the pipeline if the detected gas flow rate is higher than the high limit of the
ideal range of gas flow rate, or raising the flow rate of the gas flow in the pipeline if the detected gas flow rate is lower
than the low limit of the ideal range of gas flow rate until the detected gas flow rate falls back into the ideal range of
gas flow rate;

wherein the pipeline is provided with a sensor between the gas regulator and an outlet of the pipeline to monitor the flow
rate of the gas flow;

wherein a gas supply in the pipeline is determined to be abnormal if the detected gas flow rate is higher than the high limit
of the ideal range or is lower than the low limit of the ideal range of gas flow rate;

wherein the alarm informs a user that the gas supply is under an abnormal condition, which is not happening inside the residential
gas appliance;

wherein the flow rate of the gas flow in the pipeline is changed by providing the gas regulator a voltage to control the gas
regulator changing a size of a cross section of the pipeline according to the voltage;

wherein, after the detected gas flow rate falls back into the ideal range of gas flow rate, the size of the cross section
of the pipeline remains unchanged;

wherein, while reducing the flow rate of the gas flow in the pipeline, the flow rate is always greater than 0, and the cross
section of the pipeline is never completely closed.

US Pat. No. 9,351,323

METHOD OF REGISTERING ELECTRIC DEVICES IN WIRELESS CONTROL SYSTEM

GRAND MATE CO., LTD., Ta...

1. A method of registering an electric device in a wireless control system; wherein the wireless control system includes a
server, an access point, an interpreter, and an electric device; the server is connected to the access point through a network;
the interpreter is connected to the access point through Wi-Fi signals; the electric device is connected to the interpreter;
the method comprising the steps of:
A. obtaining a device code of the electric device, and saving the device code in the interpreter, wherein the device code
represents the electric device;

B. transmitting the device code and a user code from the interpreter to the server through the access point, wherein the user
code represents an owner of the electric device; and

C. establishing a connection between the device code and the user code in the server.

US Pat. No. 9,418,541

METHOD OF REMOTELY CONTROLLING ELECTRICAL APPLIANCES

GRAND MATE CO., LTD., Ta...

1. A method of remotely controlling electrical appliances, comprising the steps of:
A. providing a plurality of electrical appliances and a repeater, wherein each of the electrical appliances is stored with
a unique ID code, and the repeater communicates with the electrical appliances through RF signals, wherein ID stands for identification,
and RF stands for radio frequency;

B. inputting an ID code of one of the electrical appliances into a remote control device, wherein the remote control device
communicates with the repeater through Wi-Fi signals, wherein Wi-Fi is a brand name certifying wireless fidelity;

C. selecting one of the electrical appliances and one of operating commands which corresponds to the selected electrical appliance
through the remote control device, and accordingly generating a Wi-Fi signal with the remote control device, wherein a first
packet, which includes a first ID code field and a first data field, is carried by the Wi-Fi signal; the ID code of the selected
electrical appliance is recorded in the first ID code field, and the selected operating command is recorded in the first data
field;

D. transmitting the Wi-Fi signal to the repeater, converting the first packet carried thereby into a second packet with the
repeater, and then generating a RF signal to carry the second packet with the repeater, wherein the second packet includes
a second ID code field and a second data field; the ID code in the first ID code field and the operating command in the first
data field are copied to the second ID code field and the second data field respectively;

E. transmitting the RF signal to each of the electrical appliances, comparing the ID code in the second ID code field to the
ID code stored in each of the electrical appliances, and then performing an operation according to the operating command in
the second data field with the electrical appliance which has identical ID code to the ID code in the second ID code field;

wherein the repeater has a device code, which is also inputted into the remote control device in step B; the remote control
device establishes connections between the electrical appliances and the repeater according to the ID codes before performing
step C; the first packet further includes a first device code field, and the device code of the repeater is recorded in the
first device code field; if the device code in the first device code field of the first packet matches the device code of
the repeater, the repeater converts the first packet into the second packet in step D.

US Pat. No. 9,582,993

HOME APPLIANCE, CONTROL DEVICE THEREOF, AND METHOD OF ASSEMBLING THE CONTROL DEVICE

GRAND MATE CO., LTD., Ta...

1. A control device controlling at least one controlled assembly of a home appliance, the control device comprising:
a control module electrically connected to the at least one controlled assembly;
the control module having a port for receiving an electrical signal;
the control module controlling the at least one controlled assembly to perform a corresponding operation according the received
electrical signal;

a plurality of signal converters provided for receiving different wireless control signals and having connection interfaces
of same structure;

one of the signal converters being detachably connected to the port;
the signal converter which is connected to the port converting the wireless control signal into the electrical signal which
is transmitted to the port;

each of the signal converters further comprising a receiving circuit and a converting circuit;
the receiving circuit, the converting circuit and the connection interface being electrically connected in series;
the receiving circuit of the signal converter which is connected to the port receiving the wireless control signal;
the converting circuit of the signal converter which is connected to the port converting the wireless control signal received
by the receiving circuit into the electrical signal and transmitting the electrical signal to the connection interface of
the signal converter which is connected to the port; and

the connection interface of the signal converter which is connected to the port being electrically connected to the port.

US Pat. No. 9,671,770

CIRCUIT STRUCTURE OF GAS VALVE

GRAND MATE CO., LTD., Ta...

1. A circuit structure of a gas valve, wherein the circuit structure is connected to a power source, and controls a first
driver and a second driver which respectively drive a main valve and a safety valve; comprising:
a power switching circuit connected to the power source, wherein the power switching circuit transmits or cuts off power provided
by the power source to flow therethrough;

a control circuit electrically connected to the power switching circuit, the first driver, and the second driver, wherein
the control circuit receives the power provided by the power source, and outputs power having either a first voltage or a
second voltage to control the first driver and the second driver, wherein the first voltage is not equal to the second voltage;

a protection circuit electrically connected to the control circuit to transmit or cut off the power outputted from the control
circuit;

an abnormal voltage detection circuit electrically connected to the control circuit, the first driver, and the second driver
to detect if the voltage provided to the first driver from the control circuit is higher than a first abnormal voltage, and
to detect if the voltage provided to the second driver is higher than a second abnormal voltage, wherein when the voltage
provided to the first driver is higher than the first abnormal voltage, the abnormal voltage detection circuit outputs a first
abnormal signal; when the voltage provided to the second driver is higher than the second abnormal voltage, the abnormal voltage
detection circuit outputs a second abnormal signal;

a first valve switching circuit connected to the first driver to turn on or off the first driver;
a second valve switching circuit connected to the second driver to turn on or off the second driver; and
a processor electrically connected to the power switching circuit, the control circuit, the protection circuit, the abnormal
voltage detection circuit, the first valve switching circuit, and the second valve switching circuit, wherein the processor
receives the first and the second abnormal signals outputted by the abnormal voltage detection circuit, and correspondingly
outputs signals to control the power switching circuit, the control circuit, the protection circuit, the first valve switching
circuit, and the second valve switching circuit.

US Pat. No. 10,036,573

HOT WATER SUPPLY SYSTEM

GRAND MATE CO., LTD., Ta...

1. A hot water supply system being connected to a water pipeline, which includes a water inflow side and a water outlet side, comprising:a plurality of water heaters, each includes a conduit, a heating device, a detecting module, a calculating unit, and a control unit;
wherein the conduit includes an inlet section, a heating section, and an outlet section in sequence; the inlet section and the outlet section are connected with the water inflow side and the water outflow side of the water pipeline respectively, and the heating section is in association with the heating device;
wherein the detecting module detects an operation status of the water heater, and the operation status includes a water temperature inside the inlet section, a water temperature inside the outlet section, and a water flow inside the inlet section;
wherein the calculating unit is electrically connected to the detecting module, and the calculating unit estimates a heating workload of the heating device according to the operation status, and the heating workload is thermal energy needed to heat cold water to a demanded water temperature within a specific period of time;
wherein the heating device is controllable to heat up the heating section, and the heating device has a predetermined upper limit workload, which is thermal energy the heating device is allowed to provide within the specific period of time;
wherein the control unit controls the heating device to heat water, and is electrically connected to the control units of other water heaters;
when the heating workload of the heating device of any water heaters exceeds the predetermined upper limit workload, the control unit of the water heater contacts the control unit of another water heater to control the heating device of the another water heater to heat water, which makes water temperature of water provided to the water outflow side of the water pipeline reach the demanded water temperature;
wherein the control unit of each water heater is able to be operated under a master mode, and only one of the water heaters has its control unit being operated under the master mode at a time, and this control unit is defined as a master control unit; when the heating workload of the heating device of any water heaters exceeds the predetermined upper limit workload, the master control unit controls the heating device of one of other water heaters to heat water;
wherein each water heater further includes a water regulating valve provided on the inlet section, which is controllable to regulate the water flow inside the inlet section; when all water heaters are operating, and the sum of the heating workload of each heating device exceeds the sum of a maximum heating workload of each heating device, which is thermal energy that each heating device could possibly contribute in the specific period of time, the master control unit controls the water regulating valve of each water heater to reduce the water flow inside the inlet section.

US Pat. No. 10,006,550

PLUG MEMBER OF GAS VALVE

GRAND MATE CO., LTD., Ta...

1. A plug member of a gas valve, having an axial bore located in an axial direction thereof, a first bore, and a second bore, wherein the first bore and the second bore are located in a radial direction of the plug member; the first bore and the second bore communicate with the axial bore, respectively; a diameter of the first bore is larger than a diameter of the second bore; the plug member is characterized in that:a first guiding slot and at least one first oil groove are recessed into an outer peripheral surface of the plug member, wherein the first guiding slot extends in a direction from the first bore toward the second bore; the first guiding slot has a first end and a second end, wherein the first end communicates with the first bore, while the second end is near the second bore without physically communicating with the second bore; the at least one first oil groove is near the second end of the first guiding slot without physically communicating with the first guiding slot or the second bore;
wherein an extension line on the outer peripheral surface of the plug member extending from the second end of the first guiding slot to the axial direction of the plug member is defined to pass through the at least one first oil groove.

US Pat. No. 10,368,387

METHOD FOR TRANSMITTING DATA IN WIRELESS SYSTEM

GRAND MATE CO., LTD., Ta...

1. A method for transmitting data in a wireless system, wherein the wireless system comprises a first server, a second server, a relay device, and at least one appliance, wherein the first server and the relay device are connected to a network respectively; the second server communicates with the first server; the relay device is wirelessly connected to the at least one appliance, and is adapted to receive and store a state information of the at least one appliance; the method comprising the steps of:A. connecting to the first server by the relay device through the network, which is adapted for the relay device and the first server to transmit data to each other;
B. determining with the relay device whether the relay device is stored with the state information sent from the at least one appliance;
if the relay device stores the state information sent from the at least one appliance, then sending the state information to the first server by the relay device;
otherwise, sending a first interactive command to the first server by the relay device, wherein the first interactive command corresponds to a situation that the relay device is not stored with any state information of the at least one appliance; and
C. receiving a data sent from the relay device by the first server, and transmitting the data sent from the relay device to the second server for subsequent process; sending a second interactive command to the first server with the relay device, and then interrupting a connection with the first server, wherein the second interactive command requests the first server to interrupt a connection with the relay device.

US Pat. No. 10,344,968

GAS MIXER

GRAND MATE CO., LTD., Ta...

1. A gas mixer, which is adapted to communicate with at least one burner, comprising:a base having an inlet portion and a mixing portion, wherein the inlet portion has an air inlet, an air chamber, at least one gas inlet, and an opening, which communicate with each other; the air chamber is located between the air inlet and the opening, and has two opposite walls; the walls are inclined, and a distance between the walls gradually decreases in a direction from the air inlet to the opening; the gas inlet is located on one of the walls; the mixing portion has a mixing chamber communicating with the opening, and is also adapted to communicate with the burner; and
a flow splitter provided in the air chamber and located between the gas inlet and the air inlet, wherein the flow splitter divides the air chamber into a first space and a second space; the first space communicates with the air inlet, and the second space communicates with the opening and the gas inlet; the flow splitter has at least one through hole facing one of the walls, and the first space communicates with the second space through the at least one through hole.

US Pat. No. 10,330,207

PLUG MEMBER OF GAS VALVE

GRAND MATE CO., LTD., Ta...

1. A plug member of a gas valve, having an axial bore located in an axial direction thereof, a first bore, and a second bore, which are located in a radial direction thereof, wherein the first bore and the second bore communicate with the axial bore, respectively; a cross-sectional diameter of the first bore is larger than a cross-sectional diameter of the second bore; the plug member is characterized in that:a first guiding slot and a second guiding slot are recessed into an outer peripheral surface of the plug member, wherein the first guiding slot extends from the first bore to the second bore, and has a first end and a second end; the first end communicates with the first bore; the second end is near the second bore without physically communicating with the second bore; a width of the first guiding slot on the outer peripheral surface of the plug member decreases gradually from the first end to the second end; the second guiding slot extends from the second bore to the first bore, and has a third end and a fourth end; the third end communicates with the second bore; the fourth end is located between the first end and the second end of the first guiding slot without physically communicating with the first guiding slot, wherein the width of the second end of the first guiding slot converges to a pointed tip on the outer peripheral surface of the plug member.

US Pat. No. 10,367,571

METHOD FOR TRANSMITTING DATA IN WIRELESS SYSTEM

GRAND MATE CO., LTD., Ta...

1. A method for transmitting data in a wireless system, wherein the wireless system comprises a server, a relay device, and at least one appliance, wherein the server and the relay device are connected to an internet respectively; the relay device is wirelessly connected to the at least one appliance, and is adapted to receive and store a state information of the at least one appliance; the method comprising the steps of:A. connecting to the server by the relay device through the internet, which is adapted for the relay device and the server to transmit data to each other;
B. determining with the relay device whether the relay device is stored with the state information sent from the at least one appliance;
if the relay device stores the state information sent from the at least one appliance, then sending the state information to the server by the relay device;
otherwise, sending a first interactive command to the server by the relay device, wherein the first interactive command corresponds to a situation that the relay device is not stored with any state information of the at least one appliance; and
C. sending a second interactive command to the server with the relay device, and then interrupting a connection between the relay device and the server, wherein the second interactive command requests the server to interrupt the connection with the relay device.

US Pat. No. 10,267,513

SWITCHING DEVICE OF GAS VALVE

GRAND MATE CO., LTD., Ta...

1. A switching device for a gas valve, comprising:a valve assembly comprising a valve body, a cover, and a plug member, wherein the valve body has an inlet hole, an outlet hole, and a chamber respectively communicating with the inlet hole and the outlet hole; the cover is engaged with the valve body, and has a first block section and a second block section, which both correspond to the chamber; a space is formed between the first block section and the second block section; the cover has a threaded hole communicating with the space and an outside of the cover; the plug member is rotatably provided in the chamber for changing an area of an opening of the inlet hole;
a rotating shaft having a projection located in the space, wherein an end of the rotating shaft passes through the cover, and is connected to the plug member for driving the plug member to rotate;
a supporting base engaged with the valve assembly; and
a rod having a rod body and a threaded section, wherein the rod body passes through the supporting base; the threaded section is engaged with the threaded hole of the cover; the rod is able to be driven to enter or leave the space;
wherein, when the rod enters the space, the projection moves between the first block section and the rod, whereby to restrict a rotated distance of the plug member as a first distance; when the rod leaves the space, the projection moves between the first block section and the second block section, whereby to restrict a rotated distance of the plug member as a second distance, wherein the second distance is greater than the first distance; when the projection abuts against the rod, the plug member changes the area of the opening of the inlet hole to a first area; when the projection abuts against the second block section, the plug member changes the area of the opening of the inlet hole to a second area, wherein the second area is smaller than the first area.

US Pat. No. 10,270,615

METHOD OF PROVIDING OPERATING OPTIONS OF AN ELECTRIC APPLIANCE

GRAND MATE CO., LTD., Ta...

1. A method of providing operating options of an electric appliance, wherein the method is applied in a wireless system, which includes a portable device, the electric appliance, and a relay apparatus, wherein the portable device and the relay apparatus are connected through either a near-end network or a far-end network; the electric appliance communicates with the relay apparatus; the electric appliance provides a plurality of operating options which can be selected to operate the electric appliance; comprising the steps of:A. establishing a network connection between the portable device and the relay apparatus;
B. determining whether the network connection is within the near-end network or the far-end network;
if the network connection is within the near-end network, all of the operating options of the electric appliance are displayed on the portable device to be selected by a user;
if the network connection is within the far-end network, a part of the operating options of the electric appliance are disabled on the portable device for selection, while another part of the operating options of the electric appliance is still selectable on the portable device; and
in step B, if IP addresses of the portable device and the relay apparatus are in a same Intranet, the network connection is determined within the near-end network;
wherein the method further comprises a step of making a list of restricted operating options before step A, and if the network connection is within the far-end network, a part of the operating options is disabled for selection on the portable device according to the list of the restricted operating options in step B;
wherein the portable device has a screen to display the operating options of the electric appliance;
wherein if the network connection is within the far-end network, the relay apparatus transmits a list which elaborates which ones among the operating options should be disabled to the portable device, and the portable device disables a part of the operating options according to the list, and the user is not allowed to select the restricted operating options.

US Pat. No. 10,169,984

METHOD FOR TRANSMITTING DATA IN WIRELESS SYSTEM

GRAND MATE CO., LTD., Ta...

1. A method for transmitting data in a wireless system, wherein the wireless system comprises a first server, a relay device, and at least one appliance, wherein the first server and the relay device are connected to a local area network respectively; the relay device is wirelessly connected to the at least one appliance, and is adapted to receive and store a state information of the at least one appliance; the method comprising the steps of:A. connecting to the first server by the relay device through the local area network via a signal;
B. determining by the relay device whether the state information sent from the at least one appliance is stored in the relay device;
if the relay device stores the state information sent from the at least one appliance, then the state information is sent to the first server by the relay device;
otherwise, a first interactive command is sent to the first server by the relay device, wherein the first interactive command corresponds to a situation that the relay device does not store any state information of the at least one appliance;
C. sending a second interactive command to the first server by the relay device, and then interrupting a connection between the relay device and the first server, wherein the second interactive command requests the first server to interrupt the connection with the relay device.

US Pat. No. 10,151,492

IGNITION CONTROLLING DEVICE OF GAS APPLIANCE

GRAND MATE CO., LTD., Ta...

1. An ignition controlling device of a gas appliance, wherein the gas appliance includes an ignition electrode, a burner and a gas valve; the ignition electrode is beside the burner; the gas valve is disposed on a gas pipe connected to the burner; the gas valve controls a gas flow of the gas in the gas pipe; the ignition controlling device comprising:a high-voltage provider including an oscillation circuit and a high-voltage circuit, wherein the oscillation circuit includes a step-up transformer; the step-up transformer has a secondary side, and the secondary side is electrically connected to the high-voltage circuit; the high-voltage circuit has an output terminal, wherein the output terminal is electrically connected to the ignition electrode to provide high-voltage pulses to the ignition electrode;
a controller electrically connected to the oscillation circuit for controlling the step-up transformer to provide the high-voltage circuit with an AC voltage via the secondary side and the high-voltage circuit to provide the high-voltage pulses;
a flame sensing circuit electrically connected to the output terminal of the high-voltage provider to detect a flame around the ignition electrode and the burner;
a voltage sensing circuit electrically connected to the controller and the secondary side of the step-up transformer, wherein the voltage sensing circuit outputs a voltage signal to the controller and the controller controls the gas valve to supply the gas to the burner after detecting the AC voltage from the secondary side of the step-up transformer; the controller outputs a start signal to the oscillation circuit to control the high-voltage circuit to generate the high-voltage pulse; when the controller does not receive the voltage signal after outputting the start signal for a predetermined time period, the controller stops the gas valve for supplying the gas; wherein after a flame is detected by the flame sensing circuit, the controller controls the high-voltage provider to stop the high-voltage pulses.