Pipe coupling

Details Pipe coupling Pipe coupling

1974-12-30

1976-07-27

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

Inserted section

285330, 285423, 285DIG16, F16L 1310

Patent

active

039715744

ABSTRACT:
A coupling for unthreaded pipes of a sprinkler system, which permits the replacement of a small damaged pipe section without bending the pipes already emplaced in the ground. One coupling includes a short pipe section having an enlaged tubular portion fixed at one end thereof adapted to be fitted over and adhered to a first open end of the pipe in the ground. A slidable sleeve on a second end of the pipe section has an enlarged tubular portion adapted to be fitted over and adhered to a second open end of the pipe in the ground.

REFERENCES:
patent: 339036 (1886-03-01), Wilbur
patent: 556106 (1896-03-01), Schiele
patent: 2933428 (1960-04-01), Mueller
patent: 3826521 (1974-07-01), Wilhelmsen

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