Pipe coupling

Details Pipe coupling Pipe coupling

1978-08-28

1981-04-07

Frazier, Roy D.

Pipe joints or couplings

Repair

138 99, 285 21, 285177, 285286, 285419, 285423, 403270, 403341, 1563084, F16L 1310, F16L 2106, F16L 4700

Patent

active

042601819

ABSTRACT:
A pipe coupling useful in plumbing systems formed of unthreaded pipes for repairing damaged portions of said systems, particularly those portions occurring immediately adjacent emplaced couplings, such as an L or T coupling. A coupling in accordance with the invention is comprised of a pair of substantially semi-cylindrical pipe sections having longitudinal edges formed so as to mate with one another to hold the sections together. The sections are sized so a first end has an internal diameter substantially equal to the external diameter of the emplaced pipe so as to fit closely therearound, whereby an adhesive applied therebetween forms a water-tight seal. A second end of the sections is enlarged so as to fit around and engage and thereby be adapted to form a water-tight seal with the external diameter of the emplaced coupling.

REFERENCES:
patent: 863887 (1907-08-01), Stuttle
patent: 1982850 (1934-12-01), Banks
patent: 2306180 (1942-12-01), Myers et al.
patent: 3087849 (1963-04-01), Smith
patent: 3229998 (1966-01-01), Pennington
patent: 3231298 (1966-01-01), Tomb et al.
patent: 3401957 (1968-09-01), McCright et al.
patent: 3633947 (1972-01-01), Nelson
patent: 3649055 (1972-03-01), Nilsen
patent: 3771820 (1973-11-01), Hoss, Sr. et al.
patent: 3857588 (1974-12-01), Curtin
"Branson Sonic Power:Joint Design for Ultrasonic Welding", Bulletin #56a, Copyright Cert. #886,998 of Jan. 24, 1967 (2 pages).

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