Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1977-08-03
1979-11-06
Shedd, Wayne L.
Pipe joints or couplings
With casing, lining or protector
Insulated
285223, 285263, 285 53, F16L 1112, F16L 2704, F16L 3500, F16L 5916
Patent
active
041733606
ABSTRACT:
A flexible joint for a conduit transporting fluid under pressure includes a pair of spaced rigid rings. An annular flexible element is disposed between and sealingly engaging the rings so as to define a pair of annular exposed side surfaces on the element. One side surface is exposed to pressurized fluid flowing through the conduit, thereby creating a pressure differential across the flexible element between its side surfaces. To resist the load that results from the pressure differential, the flexible element incorporates a body of elastomer that has a thickness between the rings which decreases from the one side surface of the element to the other side surface. The flexible element can thus resiliently accommodate relative motion between the rings, while providing a fluid-tight, pressure-resistant seal.
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Bergman Lawrence A.
Gorndt John H.
Lord Corporation
Salada Maurice R.
Shedd Wayne L.
Wright James W.
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