US Patent No. 10,368,394


Patent No. 10,368,394
Issue Date July 30, 2019
Title Ptc Heater With Autonomous Control
Inventorship Jon Shearer, Hartville, OH (US)
Carl Aeschliman, Rittman, OH (US)
George F. Owens, Akron, OH (US)
Kevin Edward Roach, Stow, OH (US)
Assignee Hamilton Sundstrand Corporation, Charlotte, NC (US)

Claim of US Patent No. 10,368,394

1. A heating arrangement comprising:a positive temperature coefficient (“PTC”) heater;
a resistor electrically in series with the PTC heater sized and configured to limit current through the PTC heater and the resistor below a selected value;
wherein said PTC heater is utilized as a floor panel;
wherein said PTC heater has a resistance multiplier that is relatively static at lower temperatures, but increases by a factor of at least 2 across a 10° C. temperature increase as a target temperature is approached; and
wherein said PTC heater has a surface area, and said resistor is a resistance heating element which is within said surface area.