Valves and valve actuation – With correlated flow path – Pipe coupling or union
Patent
1990-07-26
1991-10-15
Schwadron, Martin P.
Valves and valve actuation
With correlated flow path
Pipe coupling or union
285 31, 285337, 285348, 251329, F16L 2900
Patent
active
050567551
ABSTRACT:
A valve is disclosed herein having an open-ended passageway with a movable gate inbetween its opposite ends for selectively opening and closing the passageway. The opposite valve ends defining the passageway include a threaded fitting or cap carried on a valve body defining a tapered gland occupied by a frustro-conical resilient seal cooperating with the gland to seal between a conduit and the valve body. The valve body is adapted for installation in a situation joining opposing ends of separated conduit or pipes.
REFERENCES:
patent: 2850299 (1958-09-01), Risley
patent: 3829061 (1974-08-01), Dayne et al.
patent: 4878698 (1989-11-01), Gilchrist
Francisco Joseph A.
Jang Young H.
Lee Kevin
Schwadron Martin P.
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