Work holders – Work-underlying support – Support mounting means
Patent
1995-06-27
1997-05-20
Watson, Robert C.
Work holders
Work-underlying support
Support mounting means
29411, 269 481, 411 55, B23Q 300
Patent
active
056305770
ABSTRACT:
A clamp assembly for clamping first and second objects together includes a sleeve adapted to fit within a first bore in the first object, the sleeve having a first end, a second end, and a slit extending from the first end to the second end. Bolt-driven sleeve-expansion components operate to radially expand the sleeve within the first bore of the first object while applying force to the sleeve axially toward the second object. One embodiment includes a cylindrically shaped, longitudinally split sleeve of resiliently deformable composition. A conically shaped member and a bolt having a conically shaped head and a shank adapted to screw into the second bore cooperate as sleeve expansion components. The tapered head of the bolt faces a first tapered inner surface of the sleeve, and a tapered exterior surface on the conically shaped member faces a second tapered inner surface of the sleeve. The shank of the bolt extends axially through the sleeve and the conically shaped member. Screwing the end portion of the shank sufficiently into the second bore in the second object causes the tapered exterior surface of the conically shaped head of the bolt and the tapered exterior surface of the conically shaped member to cooperatively bear against respective ones of the first and second tapered inner surfaces of the sleeve so that the sleeve expands and bears against the first object radially as well as axially toward the second object. Unscrewing the bolt a partial turn unlocks the clamp.
REFERENCES:
patent: 1017371 (1912-02-01), Beck
patent: 1814858 (1931-07-01), Rutter
patent: 1847937 (1932-03-01), Fetters
patent: 2560413 (1951-07-01), Carlson
patent: 2732868 (1956-01-01), Barta
patent: 2787185 (1957-04-01), Rea et al.
patent: 2868339 (1959-01-01), Lazarowicz
patent: 4789282 (1988-12-01), Abraham
patent: 5074536 (1991-12-01), McConkey
Hanson Loyal M.
Lynch Thomas W.
Watson Robert C.
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