Valve seal with pressure relief channels and expansion voids

Details Valve seal with pressure relief channels and expansion voids Valve seal with pressure relief channels and expansion voids

2005-09-06

2005-09-06

Bastianelli, John (Department: 3751)

Valves and valve actuation

Rotary valves

Butterfly

C277S460000, C277S465000

Reexamination Certificate

active

06938879

ABSTRACT:
A flexible, resilient incompressible seal for a butterfly valve is disclosed formed from a loop having a perimeter mounting surface and a perimeter sealing surface with first and second oppositely disposed axial surfaces extend between the perimeter sealing and mounting surfaces. Channels are positioned in the axial surfaces in spaced relation around the seal. The channels extend from the perimeter mounting surface toward the perimeter sealing surface and provide fluid communication to the perimeter mounting surface allowing fluid trapped against the perimeter mounting surface to escape when compressed by the closing of the valve. A void space is positioned in the perimeter mounting surface in the form of grooves or dimples allowing the perimeter sealing surface to deform under compression when the seal is captured within the valve and substantially restrained from deforming.

REFERENCES:
patent: 2982305 (1961-05-01), Grove
patent: 3304050 (1967-02-01), Fawkes
patent: 3409269 (1968-11-01), Fawkes
patent: 3540696 (1970-11-01), Fawkes
patent: 3544066 (1970-12-01), Fawkes
patent: 3726503 (1973-04-01), Fawkes
patent: 3799501 (1974-03-01), Hartman
patent: 3895815 (1975-07-01), Panigati
patent: 4005848 (1977-02-01), Eggleston
patent: 4195815 (1980-04-01), Stager
patent: 4220172 (1980-09-01), Stager
patent: 4289296 (1981-09-01), Krause
patent: 4304392 (1981-12-01), Maciulaitis
patent: 4385747 (1983-05-01), Renaud et al.
patent: 4410163 (1983-10-01), Scobie et al.
patent: 4681326 (1987-07-01), Kubo
patent: 4796857 (1989-01-01), Hayes et al.
patent: 6045121 (2000-04-01), Barker et al.
patent: 6202983 (2001-03-01), Hartman et al.
patent: 6206376 (2001-03-01), Hartman et al.

Affiliated with

Also associated with

Rating

Valve seal with pressure relief channels and expansion voids 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 seal with pressure relief channels and expansion voids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve seal with pressure relief channels and expansion voids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3420498