Double seal thermostat

Details Double seal thermostat Double seal thermostat

1987-05-13

1988-10-11

Wayner, William E.

Automatic temperature and humidity regulation

Cooling radiator

Bypass

251334, F01P 702, F16K 100

Patent

active

047765135

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:
patent: 2403028 (1946-07-01), Smith
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: 4529168 (1985-07-01), Timmermons

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