Pipe joints or couplings – Essential catch
Patent
1984-07-23
1986-09-16
Callaghan, Thomas F.
Pipe joints or couplings
Essential catch
285321, 285328, F16L 3714
Patent
active
046118373
ABSTRACT:
A readily assembled and disassembled coupling designed to sustain both axial and torsional loads. The coupling has two tubular elements that are held together by a locking ring inserted from outside the coupling after the connection is made. The end of the first tubular element fits into a section of enlarged diameter in the end of the second tubular element. The shoulder in the bore of the second at the transition point between the enlarged and normal diameter is formed into a helix. A matching helix is formed on the edge at the end of the first element. A peripheral annular groove is provided in the outer diameter of the first element and a similar groove is provided in the inside diameter of the second element. When the two elements are fitted together with their helices in contact to make the connection, the groove in the second element overlies the groove in the first element. A slot in the wall of the second element provides access to the grooves to permit the insertion of the locking ring.
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Callaghan Thomas F.
Geib Richard G.
Grumann Aerospace Corporation
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