Pipe joints or couplings – With means blocking release of holding means – Key or pin
Patent
1992-07-29
1994-09-06
Bradley, P. Austin
Pipe joints or couplings
With means blocking release of holding means
Key or pin
285340, 285353, F16L 1900
Patent
active
053441958
ABSTRACT:
A method and apparatus for achieving a fluid tight seal of a fluid coupling having an axis, wherein a spring interposed between a coupling nut and an inner member of a first coupling element is compressed when the coupling nut is engaged with a second coupling element and rotated in a tightening direction such that complementary sealing surfaces between the first and second coupling elements are axially pre-loaded to achieve a fluid tight seal. A fluid tight seal is dependent on the axial compression of the spring, indicated by the axial location of the coupling nut with respect to the inner member and second coupling element, and is visually indicated by the rotational relationship of the coupling nut and the second coupling element.
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Parimore, Jr. Thomas N.
Pauley Gerald A.
Bradley P. Austin
General Electric Company
Knapp Jeffrey T.
Narciso David L.
Squillaro Jerome C.
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