Double seal thermostat

Details Double seal thermostat Double seal thermostat

1988-08-24

1989-08-15

Wayner, William E.

Automatic temperature and humidity regulation

Cooling radiator

Bypass

251210, F01P 702

Patent

active

048567116

ABSTRACT:
A choke type thermostat is provided with dual choke seals including a conventional primary choke and a secondary choke which seals with the valve seat of the thermostat prior to the sealing of the primary choke. The secondary choke provides additional sealing for the valve and also functions to strain the flow of coolant which is allowed to pass over the primary choke, thereby preventing sand or other debris from interfering with the sealing of the primary choke.

REFERENCES:
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patent: 2595012 (1952-04-01), Smith
patent: 2610021 (1952-09-01), Smith
patent: 2720219 (1955-10-01), Grove et al.
patent: 2953165 (1960-09-01), Reynolds
patent: 3084903 (1963-04-01), Parks
patent: 3152604 (1964-10-01), Frye et al.
patent: 3248021 (1966-04-01), Corsette et al.
patent: 3248056 (1966-04-01), Obermaier
patent: 3963049 (1976-06-01), Beauregard
patent: 4232695 (1980-11-01), Roberge
patent: 4257553 (1981-03-01), Sliger et al.
patent: 4529168 (1985-07-01), Timmermans

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