Fluid handling – With casing – support – protector or static constructional... – Jacketed
Patent
1998-01-13
1999-09-07
Fox, John
Fluid handling
With casing, support, protector or static constructional...
Jacketed
251367, F16K 2700
Patent
active
059471514
ABSTRACT:
A dual containment valve is provided for use in conjunction with dual containment pipes. The dual containment valve includes an inner casing for fluid transport having a first open end, a second open end, a fluid passageway extending therebetween along its longitudinal axis, and an inner casing aperture therein; and an outer casing for leakage protection having a first open end, a second open end, an axial hole extending therebetween along its longitudinal axis, and an outer casing aperture therein. The inner casing is positioned within the axial hole in the outer casing so that the longitudinal axes of both are substantially aligned. The dual containment valve further includes a valve assembly for controlling the flow of fluid within the fluid passageway in the inner casing. The valve assembly includes a valve member that is movably positioned within the inner casing, and is movable between an open position and a closed position; a handle member that is located exterior to the outer casing; and a stem assembly that is integrally joined with the inner and outer casings, and extends from the valve member to the handle member through the inner and outer casing apertures. The stem assembly enables movement of the valve member between the open and closed positions by manipulation of the handle member from the exterior of the outer casing.
REFERENCES:
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patent: 3821984 (1974-07-01), Lee
patent: 4158366 (1979-06-01), Van Meter
patent: 4311166 (1982-01-01), De Feo
patent: 4314580 (1982-02-01), Steinwand
patent: 4777977 (1988-10-01), Platusich
patent: 4836237 (1989-06-01), McCullough
patent: 5228472 (1993-07-01), Ougiya et al.
patent: 5546977 (1996-08-01), Chaney
patent: 5615700 (1997-04-01), Chaney et al.
CSR Polypipe, Inc.
Fox John
LandOfFree
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