Coupling

Details Coupling Coupling

1980-01-07

1981-03-31

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

Inserted section

285 90, 285388, F16L 1900

Patent

active

042589363

ABSTRACT:
A coupling for connecting tubular conduits and the like in end-to-end relation, the connected ends of the conduits having identical external threads formed thereon. The coupling includes inner and outer coupling elements, the inner of which is longitudinally moveable within an internal bore in the outer and both of which have threaded internal bores which enable both elements to be threaded onto either of the conduit ends to a position enabling alignment of the conduits by relative lateral movement therebetween after which the outer coupling element may be threaded onto the other of the conduits so as to draw the adjacent ends of the conduits into aligned abutting relation. In an alternative embodiment, the inner coupling element may be moved longitudinally onto the threaded end of the conduit without requiring threading thereon, after which the inner coupling element may be removed by unthreading. In both embodiments, the coupling may be removed from the coupled conduits without damaging the coupling or conduits, thereby enabling salvaging and reuse.

REFERENCES:
patent: 187343 (1877-02-01), Bailey
patent: 658692 (1900-09-01), Williams
patent: 1119752 (1914-12-01), Goethner et al.
patent: 1301244 (1919-04-01), Ford
patent: 1570155 (1926-01-01), Karbowski
patent: 2391632 (1945-12-01), Knight et al.
patent: 2563366 (1951-08-01), Raymond
patent: 2926027 (1960-02-01), Marquis, Jr.
patent: 3984130 (1976-10-01), Berger et al.
patent: 4082319 (1978-04-01), Berger et al.

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