Hand tool for temporary plugging of pipe conduits

Details Hand tool for temporary plugging of pipe conduits Hand tool for temporary plugging of pipe conduits

1996-06-19

1998-10-13

Brinson, Patrick F.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 94, F16L 5512

Patent

active

058198040

ABSTRACT:
An instrument for temporarily sealing a pipe against fluid flow comprising a manually actuatable handle and a sealing unit engaged to the handle, the sealing unit having a seal assembly supported at one end of a flexible cable operatively connected to the handle. The sealing assembly comprising an elastomeric seal contained between first and second compression elements which compress the elastomeric seal into an expanded state upon actuation of the handle.

REFERENCES:
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patent: 2588188 (1952-03-01), Weisman
patent: 3015469 (1962-01-01), Falk
patent: 3173449 (1965-03-01), Custer et al.
patent: 3692059 (1972-09-01), Ice, Jr.
patent: 3763896 (1973-10-01), Horne et al.
patent: 4584755 (1986-04-01), Lundquist
patent: 5119861 (1992-06-01), Pino
patent: 5224516 (1993-07-01), McGovern et al.
patent: 5357763 (1994-10-01), Vogel
patent: 5558130 (1996-09-01), McCabe et al.

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