Pipe coupling

Details Pipe coupling Pipe coupling

1976-11-04

1978-08-01

Callaghan, Thomas F.

Pipe joints or couplings

Sleeve

Dependent

285423, 285DIG16, F16L 1310, F16L 4700

Patent

active

041039432

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. The coupling is comprised of a pair of semi-cylindrical pipe sections adapted to fit around and engage the emplaced pipes. The longitudinal edges of the two semi-cylindrical pipe sections are formed so as to mate with one another to hold the sections together as an applied adhesive forms a water-tight seal. Two identical end collars slide along the emplaced pipes and grip the semi-cylindrical pipe sections, holding them in place during the bonding process.

REFERENCES:
patent: 1888241 (1932-11-01), Rah
patent: 3124874 (1964-03-01), Woolley
patent: 3352575 (1967-11-01), Daspit
patent: 3771820 (1973-11-01), Hoss, Sr. et al.
patent: 3857588 (1974-12-01), Curtin
patent: 3865410 (1975-02-01), Chen
patent: 3980325 (1976-09-01), Robertson

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