High confidence tube plug

Details High confidence tube plug High confidence tube plug

1989-09-26

1991-01-08

Hornsby, Harvey C.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

166187, 166192, 165 71, F16L 5510

Patent

active

049827642

ABSTRACT:
A high confidence tube plug for sealing the bore of a tube against fluid flow has an elastomeric sleeve for sealing the tube. An axially aligned hydroscopic disk swells when contacted with water to frictionally grip the tube. The sleeve and the disk are fastened together by a bolt and nut arrangement.

REFERENCES:
patent: 2445273 (1948-07-01), Kennedy
patent: 2449616 (1948-09-01), Pennella
patent: 3797805 (1974-03-01), Nielsen
patent: 4357960 (1982-11-01), Han
patent: 4443019 (1984-04-01), Ishido et al.
patent: 4760868 (1988-08-01), Saxon

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