Thermostat

Details Thermostat Thermostat

H - Electricity

01

H

306/182

H01H 71/16 (2006.01) H01H 35/34 (2006.01) H01H 37/02 (2006.01) H01H 37/70 (2006.01)

Patent

CA 1044289

Abstract of the Disclosure A thermostat including a housing assembly, a snap- acting thermally responsive actuator, and a control switch is disclosed having a switch operating arrangement coacting with the switch and the actuator. The switch operating arrange- ment includes a lever structure hinged to the thermostat housing assembly for transmitting motion between the switch and the actuator by pivoting about the hinge. Heat transfer to the hinge is minimized so that movement of the lever is not impeded by the effects of heat on the hinge. The lever struc- ture slidably engages the switch during movement about the hinge resulting in gradual wearing away of the switch engaging lever portion which compensates for normally occurring switch contact erosion. In one embodiment of the invention the switch operat- ing arrangement includes a manually operated trip-free resetting mechanism which is constructed and arranged to apply a limited resetting force to the switch for preventing premature reclosing of the switch contacts and avoiding the possibility of damage to the switch.

234512

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