Pipe coupling

Details Pipe coupling Pipe coupling

1976-06-14

1978-08-29

Callaghan, Thomas F.

Pipe joints or couplings

Packed

Sleeve

285156, 285421, 285423, 285DIG16, F16L 1310, F16L 4702

Patent

active

041099443

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.

REFERENCES:
patent: 2403839 (1946-07-01), Adolph
patent: 2680631 (1954-06-01), Smith
patent: 2690193 (1954-09-01), Smith
patent: 3186744 (1965-06-01), Smith et al.
patent: 3229998 (1966-01-01), Pennington
patent: 3456965 (1969-07-01), Gajewski et al.
patent: 3633947 (1972-01-01), Nelson
patent: 3771820 (1973-11-01), Hoss, Sr. et al.

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