Symmetrical valve configuration

Details Symmetrical valve configuration Symmetrical valve configuration

2005-05-03

2005-05-03

Hirsch, Paul J. (Department: 3753)

Fluid handling

With repair, tapping, assembly, or disassembly means

With provision of alternate wear parts

C251S334000

Reexamination Certificate

active

06886586

ABSTRACT:
A compression-type valve seating ring device for sealingly engaging the valve seat. The seating ring device includes a resilient cylindrical body having a central axis and having a side surface, a top surface and a bottom surface. A first inward bevel is defined circumferentially from the side surface toward the top surface, and a second contour is defined circumferentially between the first bevel and the top surface, wherein the first bevel provides a seating surface and the second contour enhances the seal and life of the valve. The valve element is configured symmetrically such that top and bottom sides are substantially identical.

REFERENCES:
patent: 4044993 (1977-08-01), Wheeler
patent: 4073307 (1978-02-01), Royce
patent: 4621656 (1986-11-01), Ichimaru
patent: 4842246 (1989-06-01), Floren et al.
patent: 6772993 (2004-08-01), Miller et al.

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