Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1975-12-05
1977-12-27
Britts, Ramon S.
Pipe joints or couplings
With casing, lining or protector
Insulated
285 2, F16B 3102
Patent
active
040647854
ABSTRACT:
A break-out washer assembly for facilitating undoing a connection between interengaged complementally threaded elements. The assembly comprises a washer which tapers radially inwardly and is made of a ductile material and a pair of annuli which straddle the washer, the annuli being complementally shaped to the washer and being made of a relatively harder material. The assembly is interposed between opposing shoulders of the threaded elements which are tightened to extrude the washer and impose a hoop stress on it. The connection is undone by breaking the washer at a chosen circumferential position.
REFERENCES:
patent: 3060731 (1962-10-01), Adise
patent: 3087371 (1963-04-01), Orner
patent: 3461715 (1969-08-01), Stover
Graham Peter Charles
Renison Joseph Theo
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