Fluid handling – Systems – Plural noncommunicating flow paths
Patent
1981-04-10
1983-08-16
Walton, George L.
Fluid handling
Systems
Plural noncommunicating flow paths
137597, 137607, 13761419, 1376142, 74532, 251246, 251297, 251367, F16K 3144
Patent
active
043985602
ABSTRACT:
A valve apparatus for simultaneously shutting off or opening two gas supplies comprises two valve bodies for mounting a distance apart from each other. Each body has an internal conduit therethrough for the passage of gas. A lift valve within each conduit closes or opens the conduit with reciprocation of the valve. The lift valve has a valve stem engagable externally from each valve body. A pair of spaced-apart, parallel shafts are rotatably journalled at each end in apertures in the valve bodies and are axially slidable within the apertures, permitting the distance between the valve bodies to be varied. A first lever is connected to a first of the shafts and has a member connected thereto for engaging the valve stems, and a detent. A second lever is connected to a second of the shafts and has a notch for engaging the detent when the first lever is pivotted from a shut-off position to an open position where the member engages the valve stems to open the lift valves. The notch disengages from the detent when the second lever is pivotted so the first lever returns to the shut-off position, and the valves are closed.
REFERENCES:
patent: 1543827 (1925-06-01), Doty
patent: 1674121 (1928-06-01), Owens
patent: 1731020 (1929-10-01), Messer
patent: 1733441 (1929-10-01), Barks
patent: 1851263 (1932-03-01), Roach
patent: 1860046 (1932-05-01), McCutcheon
patent: 2409765 (1946-10-01), Kehle
patent: 2615464 (1952-10-01), Hughey
patent: 2620827 (1952-12-01), Jones
patent: 2645241 (1953-07-01), Riede
patent: 2834368 (1958-05-01), Gray
patent: 3107694 (1963-10-01), Hastings et al.
patent: 3943791 (1976-03-01), Casey
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