Dog locking sleeve

Details Dog locking sleeve Dog locking sleeve

1982-07-23

1983-12-20

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

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

Patent

active

044211384

ABSTRACT:
A retrievable plug having a dog locking sleeve which has a specially contoured outer surface to more closely fit within the packer mandrel and increased axial length to limit movement of the dog locking sleeve within the plug thereby eliminating 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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