Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1994-11-07
1996-07-30
Watson, Robert C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29280, 29282, 269 481, 279906, 279 231, 279 222, B23Q 314
Patent
active
055399681
ABSTRACT:
A workpiece holding press tool with an elongated body having an annular collar extending from an end face and a plug member secured to the collar by a fastener. The plug forms an annular groove with the body that receives a retainer clip which frictionally engages the inside surface of a workpiece to retain the workpiece on the press tool. The retainer clip is a circular spring steel wire having opposed ends with a relieved portion formed on the outside surface thereof to prevent scratching, marring or otherwise damaging the inside surface of the workpiece. In another embodiment, a second plug is added to provide a second annular groove to receive a second retainer clip for holding elongated workpieces having a cylindrical inside diameter.
REFERENCES:
patent: 2365980 (1944-12-01), Thomas
patent: 2513412 (1950-07-01), Holsing
patent: 2704681 (1955-03-01), Fischer
patent: 2806706 (1957-09-01), Fitch
patent: 3792856 (1974-02-01), Hernandez
Watson Robert C.
Western Atlas Inc.
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