Locking coupling system

Details Locking coupling system Locking coupling system

1982-04-16

1983-08-09

Callaghan, Thomas F.

Pipe joints or couplings

With means blocking release of holding means

285175, 285333, 285DIG14, 29526R, F16L 1500

Patent

active

043974848

ABSTRACT:
An apparatus is disclosed wherein oppositely threaded, dissimilar coarseners threads are provided to receive couplings having tapered splined ends.

REFERENCES:
patent: 861828 (1907-07-01), Grindrod et al.
patent: 1583126 (1926-05-01), Crane
patent: 1781091 (1930-11-01), Wilson
patent: 2204392 (1940-06-01), Arm
patent: 2913261 (1959-11-01), Matchett
patent: 3015500 (1962-01-01), Barnett
patent: 3463228 (1969-08-01), Hearn
patent: 3519290 (1970-07-01), Dunlap et al.
patent: 3762745 (1973-10-01), Cunningham

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