Patent ID: 11885532
Assignee: CARRIER CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. A furnace system, comprising:
a burner configured to receive and ignite a supply of combustible gas and produce a heated air, the heated air defining a temperature; and
a limit switch assembly configured to sense the temperature of the heated air, the limit switch assembly comprising:
a switch communicatively connected to a control board of the furnace system, the switch configured to send a signal to the control board when actuated; and
a shape memory member having a first fixed end and an opposite, second fixed end, the switch being arranged within a plane containing the first fixed end and the second fixed end, the shape memory member being transformable between a retracted position and an extended position in response to the temperature of the heated air exceeding a threshold, wherein in the extended position, the shape memory member is directly engaged with the switch.