US Patent No. 10,363,447


Patent No. 10,363,447
Issue Date July 30, 2019
Title Electric-pneumatic Actuator Assembly
Inventorship Chad L. Ryczek, Oconto Falls, WI (US)
Richard J. Biehl, Marinette, WI (US)
Brian L. Counts, Menominee, MI (US)
Assignee Tyco Fire Products LP, Lansdale, PA (US)

Claim of US Patent No. 10,363,447

1. An actuator assembly configured for rupturing a seal of a cartridge of pressurized gas, the assembly comprising:a housing having a proximal end and a distal end with a passageway extending axially from the proximal end to the distal end along an actuator axis, the passageway defining a first chamber and a second chamber with the second chamber disposed distally of the first chamber, with the first and second chambers centered along the actuator axis, the housing including at least one inlet port formed between the first and second chambers in communication with the passageway for coupling to a pressurized gas source;
an electrically operated protracting actuation device having an electrical connector and a rod member, the protracting actuation device being disposed within the housing such that the electrical connector is disposed in the first chamber and the rod member is disposed in the second chamber with the first chamber being sealed from the second chamber and the at least one inlet port; and
a puncturing assembly including a head with a puncturing pin extending axially from the head, the puncturing assembly having an actuated position and a retracted position within the passageway with the head in the second chamber biased in a proximal direction to the retracted position for translation from the retracted position to the actuated position upon either electrical operation of the protracting actuation device or delivery of the pressurized gas to the at least one inlet port acting on the head.