Cartridge valve with multiple shut-off

Details Cartridge valve with multiple shut-off Cartridge valve with multiple shut-off

1975-02-13

1976-11-16

Rosenthal, Arnold

Valves and valve actuation

Sequential opening or closing of serial ports in single flow...

251362, 251DIG1, F16K 134

Patent

active

039919730

ABSTRACT:
There is disclosed faucet construction which incorporates control valve means comprising a plurality of fluid flow regulation instrumentalities constructed to operate sequentially to shut off water flow, including a tapered end seal portion cooperable with a passage through a seat to normally effect such shut-off, a second seal in the form of an O-ring operable when the end seal portion fails to shut off fluid flow, and a third seal surface adjacent the end seal portion operable when the first and second means fail to shut off as desired, with the further provision of seat construction which facilitates replacement by threaded or non-threaded seat means.

REFERENCES:
patent: 2661925 (1953-12-01), Barkelew
patent: 2931385 (1960-04-01), Carlisle et al.
patent: 3446239 (1969-05-01), Klenz
patent: 3844532 (1974-10-01), Buck

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