Apparatus for clamping and sealing the outer surface of a pipe a

Details Apparatus for clamping and sealing the outer surface of a pipe a Apparatus for clamping and sealing the outer surface of a pipe a

1985-04-15

1987-06-30

Callaghan, Thomas F.

Pipe joints or couplings

With fluid pressure seal

With external pressure supply

285 97, 2853827, 285924, 285261, 285226, F16L 1700

Patent

active

046765310

ABSTRACT:
For use with a pipe having an outer surface, a clamping structure is set forth. In the preferred and illustrated embodiment, the device utilizes a surrounding ring of solid construction having a central passage fitting over the pipe in question. An internal groove is formed in the ring. An encircling clamp means is placed in the groove which has an exposed or outer face confronting the pipe. The clamp means is fabricated with the outer face supported on a pair of spaced sidewalls which are corrugated along their length. On application of pressure to the interior of the ring, the corrugations are straightened, driving the outer face into the pipe and thereby clamping.

REFERENCES:
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patent: 4371198 (1983-02-01), Martin
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