Valve body and seal assembly

Details Valve body and seal assembly Valve body and seal assembly

2007-01-30

2007-01-30

Krishnmaurthy, Ramesh (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C137S375000, C137S516290, C137S902000, C251S332000, C251S368000

Reexamination Certificate

active

11148081

ABSTRACT:
A valve body and seal assembly comprising a top-stem-guided valve body having at least one cast-in-place elastomeric seal insert in a peripheral seal retention groove and a cast-in-place top guide stem sleeve is made by pouring and curing liquid elastomer in at least one mold comprising the peripheral seal retention groove and the top guide stem. Mold surfaces contacting the poured elastomer are adhesion-inhibiting surfaces which reduce or eliminate background elastomer stress due to shrinkage during curing of the elastomer, and which allow limited relative movement of cast-in-place elastomer with respect to the valve body. Serrations on each of the opposing walls of the seal retention groove are offset to moderate differing stress concentrations in the groove walls.

REFERENCES:
patent: 3070120 (1962-12-01), Wendt
patent: 3090596 (1963-05-01), Gifford
patent: 4860995 (1989-08-01), Rogers
patent: 5275204 (1994-01-01), Rogers et al.

Affiliated with

Also associated with

Rating

Valve body and seal assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve body and seal assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve body and seal assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3746815