Wax-pellet thermostat

Details Wax-pellet thermostat Wax-pellet thermostat

1991-02-25

1992-01-28

Tapolcai, William E.

Automatic temperature and humidity regulation

Cooling radiator

Bypass

251175, F01P 716

Patent

active

050837052

ABSTRACT:
A wax-pellet thermostat having a frame having a valve seat, a piston secured to the frame, a guide member slidably mounted on the piston, and a valve secured to the guide member. A resilient annular seal member is secured to an outer periphery portion of the primary valve. An annular groove is formed in the seal member to form an annular resilient lip at an outer periphery of the seal member. The resilient lip is arranged to be engaged with an inside wall of the frame by pressure of coolant in a main passage of a cooling system.

REFERENCES:
patent: 3027134 (1962-03-01), Nichols
patent: 3095008 (1963-06-01), Rudelick
patent: 3409269 (1968-11-01), Fawkes
patent: 3990676 (1976-11-01), Brownstein
patent: 4172585 (1979-10-01), Rolfe
patent: 4883225 (1989-11-01), Kitchens

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