F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/127, 251/87
F16K 1/36 (2006.01) F16K 11/044 (2006.01)
Patent
CA 1132525
P-37/131 ABSTRACT OF THE DISCLOSURE An improvement is provided in a valve having a valve housing defining first and second valve openings and a valve sealing element in the housing. The improvement comprises a three-piece valve sealing element, That valve sealing element comprises a first hard retainer of metal or the like, a second generally cup shaped hard retainer of metal or the like and a resilient plastic component disposed between the first and second retainers and having an exposed sloped peripheral sealing sur- face which surface is adapted to engage the first valve opening defined within the valve housing. The second retainer has a curved peripheral surface engageable with the second valve open- ing within the valve housing, the two valve openings being spaced longitudinally from each other. The valve includes a valve stem connected to the valve sealing element for movement of said valve sealing element in the housing between the two valve open- ings. The valve openings are generally circular as are the plas- tic sealing component and the second retainer. Preferably the plastic sealing element comprises polyurethane and the two re- tainers comprise steel or stainless steel or the like. The valve stem is disposed longitudinally within the housing and the valve sealing element is secured to one end thereof and extends trans- versely of the housing. The first retainer may be a flat disc of smaller diameter than the sealing component and second retainer. The valve sealing element provides improved gradual closing of both the first and second openings in the housing. Moveover, the valve sealing element is readily assembled and disassembled for removal and substitution of the wearable valve sealing com- ponent. The valve sealing element is inexpensive, durable and efficient.
365006
George H. Riches And Associates
Yardney Electric Corporation
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