Automatic temperature and humidity regulation – Thermostatic – Expanding solid
Patent
1977-06-27
1979-03-06
Cohan, Alan
Automatic temperature and humidity regulation
Thermostatic
Expanding solid
236 48R, 137468, 251367, F10K 2404
Patent
active
041426770
ABSTRACT:
A fuel vapor vent valve comprising a plastic body including a base wall and a peripheral wall and a plastic cap including a base wall and a peripheral wall surrounding the peripheral wall of the plastic body. The peripheral wall of the base has a radially outwardly extending annular rib and the peripheral wall of the cap has a radially inwardly extending rib. The ribs are adapted to pass over one another to provide a snap fit during assembly. The base wall of the body has integral O-ring retaining means for retaining an O-ring. A bi-metallic disc is positioned in said body within the confines of the peripheral wall of the body and normally engages said O-ring. Integral stop means on the cap are adapted to be engaged by the bi-metal disc when the disc is caused to move to a position out of engagement with the O-ring upon increase of the ambient temperature.
REFERENCES:
patent: 3051509 (1962-08-01), Wilton
patent: 3417768 (1968-12-01), Wasson
patent: 3807445 (1974-04-01), McPhee
patent: 3889710 (1975-06-01), Brost
patent: 3930613 (1976-01-01), Place
patent: 4068800 (1978-01-01), Doherty
Cohan Alan
Tom McGuane Industries, Inc.
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