Internal bushing removal tool

Details Internal bushing removal tool Internal bushing removal tool

1994-02-24

1995-03-28

Wasil, Daniel D.

Metal working

Means to assemble or disassemble

Nuclear device

29275, 294 97, 376463, G21C 1900

Patent

active

054004993

ABSTRACT:
A tool for removal of the internal bushings from a piston coupling of a CRD. The tool incorporates a spring-loaded and hardened collet supported on one end of a ram. The collet has a pair of arms with shoulders or projections which latch inside the internal bushing ring to be removed. The tool is inserted into the piston coupling from either end, depending on which internal bushing is to be removed. The tool is inserted until the latching shoulders or projections snap behind the radially inwardly projecting internal bushing, with the contact surfaces of the shoulders or projections in contact with a radial end surface of the bushing. The bushing can then be dislodged, from the inside out, by impacting the other end of the ram with a hammer.

REFERENCES:
patent: 1341132 (1920-05-01), Johnson
patent: 1342852 (1920-06-01), Lindenmuth
patent: 1964468 (1934-06-01), Irvine
patent: 2924005 (1960-02-01), Wilson

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