Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Patent
1989-07-14
1990-06-26
Hepperle, Stephen M.
Fluid handling
Removable valve head and seat unit
Retained by bonnet or closure
137540, F16K 1506
Patent
active
049363395
ABSTRACT:
The present invention shows an improved cartridge-within-a-cavity, one-way check valve for use in a high-pressure, high-temperature pneumatic environment. The check valve has a body with a valve portion having an annular cavity extending through one end thereof. The valve portion is provided with a plurality of radial openings. Within the annular cavity a plunger and compression means are provided which close off the radial openings. Pressurized fluid flow into the annular cavity will force the plunger back into the central annular cavity against the compression means allowing one-way flow through the radial openings. Within the annular cavity a plunger and compression means are provided which close off the radial openings. Pressurized fluid flow into the annular cavity will force the plunger back into the central annular cavity against the compression means allowing one-way flow through the radial openings in the valve portion.
REFERENCES:
patent: 880030 (1908-02-01), Leavitt
patent: 2279002 (1942-04-01), MacNeil
patent: 4039003 (1977-08-01), Cheek
patent: 4049017 (1977-09-01), Jones
patent: 4136854 (1979-01-01), Ehmig et al.
patent: 4368754 (1983-01-01), Roberts
patent: 4657043 (1987-04-01), Ampferer et al.
patent: 4679584 (1987-07-01), Wolff
patent: 4727902 (1988-03-01), Unterstein et al.
Beam Robert Charles
Hepperle Stephen M.
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