Wells – Above ground apparatus – With seal for reciprocating member
Patent
1981-06-04
1984-01-03
Novosad, Stephen J.
Wells
Above ground apparatus
With seal for reciprocating member
277 73, E21B 3308
Patent
active
044237758
ABSTRACT:
A wire line stripper having a tubular body with a deformable or plastic packing element disposed therein for sealingly engaging an elongate flexible member, such as a wire line or a cable, which is longitudinally movable through the body and the packing element, an operator means such as a tubular piston in the body for forcing the packing element at several longitudinally spaced locations resiliently radially inwardly toward the flexible member, and a safety sleeve secured to the stripper and extending thereabove which limits flexure or bending of the flexible member and minimizes abrasion thereof as it moves downwardly into or upwardly from the body. The safety sleeve has an annular outwardly extending flange for protecting members externally connected to the body, such as fittings through which fluid under pressure is admitted into the body to operate the operator means, against damage thereto during installation, removal or operation of the stripper.
REFERENCES:
patent: 2748870 (1956-06-01), Basham et al.
patent: 2943682 (1960-07-01), Ingram, Jr. et al.
patent: 3129009 (1964-05-01), Simpson
patent: 3468549 (1969-09-01), Wilson
patent: 3626505 (1971-12-01), Douglas
patent: 4307783 (1981-12-01), Lanmon
Neuder William P.
Novosad Stephen J.
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