Locking device for use in well tubing

Details Locking device for use in well tubing Locking device for use in well tubing

1975-05-30

1976-06-15

Leppink, James A.

Wells

Expansible anchor or casing

166217, E21B 2302

Patent

active

039630749

ABSTRACT:
An unitary tubular locking member is rotatably mounted on a mandrel along with sleeve means for pivoting the locking member into abutting engagement inside a landing nipple in a tubing string.

REFERENCES:
patent: 2948339 (1966-08-01), Fredd
patent: 2991835 (1961-07-01), Schwab
patent: 3207224 (1965-09-01), Schramm
patent: 3818988 (1974-06-01), Read

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