Dog locking sleeve

Details Dog locking sleeve Dog locking sleeve

1982-07-09

1983-11-01

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

405195, 405203, 166188, 166192, F16L 5512, F16L 5510

Patent

active

044125593

ABSTRACT:
A retrievable plug having a dog locking sleeve which has extensions thereon to increase the effective axial length thereof to eliminate binding of the dog locking sleeve within the plug mandrel during actuation of the plug body for the removal of the plug body from the member in which it is installed.

REFERENCES:
patent: 2776015 (1957-01-01), Bielstein
patent: 3577737 (1971-05-01), Burleson
patent: 4142371 (1979-03-01), Mayfield et al.
patent: 4160612 (1979-07-01), Britton et al.
patent: 4178967 (1979-12-01), Streich
patent: 4184515 (1980-01-01), Streich et al.
patent: 4215951 (1980-08-01), Knox
patent: 4262702 (1981-04-01), Streich

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