Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1996-07-30
1998-01-27
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Direct response valves
251359, 29890127, 29890129, 219 7614, F16K 1500
Patent
active
057113432
ABSTRACT:
A dual plate check valve comprises a substantially cylindrical valve body 10 provided with a diametrical cross-member 14 thereby defining a pair of substantially D-shaped apertures, and two substantially D-shaped plates 18, pivotally connected by a hinge means 20 parallel to said cross-member 14, and pivotable between a valve open position and a valve closed position in which the sealing face of each plate engages a sealing face provided on a valve seat 16 which surrounds each aperture. A groove is provided in each sealing face which is then filled with a weld inlay 40, 42 and then machined to provide a sealing face portion of a more durable metal alloy.
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Search Report dated 28 Oct. 1996 (2 pages).
Ferensic Denise L.
Goodwin International Limited
Kim Joanne Y.
LandOfFree
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