Pipe joints or couplings – With assembly means or feature – Molded joint facilitator
Patent
1978-08-14
1980-04-15
Callaghan, Thomas F.
Pipe joints or couplings
With assembly means or feature
Molded joint facilitator
285238, F16L 3318
Patent
active
041980778
ABSTRACT:
The fitting assembly embodies a pair of fittings, one of which is in the ure of a union having a thread on one end, a head on the other end and an axially disposed through aperture which has an enlarged central section provided with a sealing shoulder on the end. The second fitting is in the nature of metal or plastic tube which has a locking end divided into four quarters which permits the end sections to contract when advanced into the aperture and to expand into the central opening to form an anchor and a seal with an O-ring on the tube end when compressed on the sealing shoulder. The assembled fittings may, if desired, be rotatable relative to each other so that the union can have the thread rotated, via a tool engaged with a suitable wrenching surface, in the threaded aperture to which it is to be connected and the second fitting turned to have its end mated with an element to which it is to be joined.
REFERENCES:
patent: 2006139 (1935-06-01), Arthur
patent: 2230881 (1941-02-01), Browne
patent: 2542701 (1951-02-01), Press
patent: 2570406 (1951-10-01), Troshkin et al.
patent: 3030253 (1962-04-01), St. John et al.
patent: 3408098 (1968-10-01), Wilson
patent: 3784235 (1974-01-01), Kessler et al.
Callaghan Thomas F.
Huron Tool & Manufacturing, Division of U. S. Industries, Inc.
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