Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor
Patent
1984-03-30
1985-05-21
Freeh, William L.
Pumps
Expansible chamber type
Having pumping chamber pressure responsive distributor
13751625, 13751627, 13751629, 251332, F04B 2100, F04B 2106, F16K 1514, F16K 1704
Patent
active
045183295
ABSTRACT:
A fluid pressure energized wear resistant pump valve is provided having a valve body and seal retainer formed of metal which secure a seal insert in assembly therewith. The seal insert incorporates an elastomeric sealing portion having a frusto-conical sealing surface for engagement with a valve seat of corresponding configuration. An anti-extrusion member is secured in assembly with the elastomeric seal portion and is composed of non-metal material of greater hardness than the hardness of the elastomeric material. The anti-extrusion member forms a frusto-conical sealing surface disposed in contiguous relation with the sealing surface of the elastomeric seal member. The anti-extrusion member further defines a tapered, yieldable peripheral sealing lip which yields responsive to pressure conditions to prevent pressure induced extrusion and damage to the elastomeric sealing member.
REFERENCES:
patent: 1948628 (1934-02-01), Penick et al.
patent: 1966264 (1934-07-01), Roye
patent: 2495880 (1950-01-01), Volpin
patent: 2985424 (1961-05-01), Anderson et al.
patent: 3057372 (1962-10-01), Sutton et al.
patent: 3134572 (1964-05-01), Glasgow
patent: 3409039 (1968-11-01), Griffin
patent: 3419041 (1968-12-01), Jennings
patent: 4015815 (1977-04-01), Leisner
LandOfFree
Wear resistant pump valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wear resistant pump valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wear resistant pump valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1535852