Leak repair clamp

Details Leak repair clamp Leak repair clamp

1976-05-03

1977-09-20

Callaghan, Thomas F.

Pipe joints or couplings

Repair

138 99, 285110, 285294, 285363, 285379, F16L 5516

Patent

active

040492966

ABSTRACT:
In one exemplar embodiment, a leak repair clamp for pipe and pipe flanges, valve bonnet flanges and the like is disclosed having a divided clamp frame positionable about the pipe or pipe flange. The divided clamp frame has a pair of spaced parallel channels disposed about its inner periphery. Deformable self-energizing seal members are disposed in each of the channels and having a flexible sealing tip portion radially extending from the inner periphery of the clamp frames. A retaining member is disposed in each of the channels adjacent the seal member for engaging the seal and the channel and retaining the seal member fixed within the channel. A means for clamping the divided clamp frame about the pipe is actuated for applying compressive force between the pipe or pipe flange and the flexible sealing tip portion of the parallel sealing members to compress and deform the tip portions of the parallel seal members for affecting a self-sealing sealed area encircling the pipe or pipe flanges to effectively seal off the leak.

REFERENCES:
patent: B313280 (1976-04-06), Schuldink
patent: 518805 (1894-04-01), Cooper
patent: 549594 (1895-11-01), Cooper et al.
patent: 1903029 (1933-03-01), Damsel
patent: 2417741 (1947-03-01), Dillon
patent: 2434107 (1948-01-01), Folsom
patent: 2490907 (1949-12-01), Kellaher et al.
patent: 3151631 (1964-10-01), Yano
patent: 3550638 (1970-12-01), Smith
patent: 3603508 (1971-09-01), Ingram et al.
patent: 3603616 (1971-09-01), Smith
patent: 3664691 (1972-05-01), Nakamura
patent: 3770301 (1973-11-01), Adams
patent: 3791678 (1974-02-01), De Putter
patent: 3954288 (1976-05-01), Smith

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