Wireline catcher

Details Wireline catcher Wireline catcher

1982-08-23

1985-02-12

Reger, Duane A.

Brakes

Strand

188188, 2421072, B60T 712

Patent

active

044985630

ABSTRACT:
An oil well wireline cable catcher apparatus includes a housing having a bore which passes vertically therethrough so that a wireline can pass vertically therethrough and then into the oil well bore. Sensing means are also included to monitor tension of the wireline. Slips are disposed within the housing on opposite sides of the wireline between gripping and retracted positions. Each slip has a wireline engaging surface, the pair of respective surfaces facing one another so as to grip the wireline when the slips are actuated to the gripping position. A pair of springs mounted in the housing are respectively beneath each slip, the springs biasing the slips toward the retracted position so that the wireline is not engaged by the slip surfaces. A slip actuator means is carried by the housing and is cooperatively connected to the sensing means for moving the slips together to grip the wireline responsive to a break in the wireline and attentive relaxation in wireline tension.

REFERENCES:
patent: 2970445 (1961-02-01), Suderow
patent: 2991526 (1961-07-01), Kuebler
patent: 3049775 (1962-08-01), Ondeck
patent: 3335469 (1967-08-01), Shand et al.
patent: 3467224 (1969-09-01), Curtis et al.
patent: 3472343 (1969-10-01), Williams et al.
patent: 3706361 (1972-12-01), Paulssen et al.
patent: 3779347 (1973-12-01), Chevalier
patent: 3957118 (1976-05-01), Barry et al.

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