Expansion tube puller

Details Expansion tube puller Expansion tube puller

1992-08-03

1993-05-04

Watson, Robert C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

B23P 1904

Patent

active

052077306

ABSTRACT:
A pair of pivotably-joined jaws have a clamp, coupled thereto, for setting the jaws in a selected angular position therebetween and for preventing a pivotable widening thereof after the angle has been set. Too, one of the jaws has an anvil extending therefrom, and a slide hammer assembly, coupled to the anvil, causes percussive jarring of the jaws, in order to free up a stuck expansion tube from an evaporator line. Recesses formed adjacent terminal ends of the jaws engage ears of the expansion tube to enhance the grip thereon.

REFERENCES:
patent: 191026 (1877-05-01), Caldwell
patent: 1519938 (1924-12-01), Smith
patent: 1580578 (1926-04-01), Berry
patent: 1616121 (1927-02-01), Gruber
patent: 2779089 (1957-01-01), Allen
patent: 3739452 (1973-06-01), Gadberry
patent: 3791012 (1974-02-01), Jenkin
patent: 4307635 (1981-12-01), Genova
patent: 4335493 (1982-06-01), Shivers et al.

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