Joints and connections – Manually releaseable latch type – Having operating mechanism
Patent
1987-09-04
1989-06-06
Cuomo, Peter M.
Joints and connections
Manually releaseable latch type
Having operating mechanism
403325, 403328, 292 27, 292 34, 24635, F16B 2102, E05C 910
Patent
active
048367079
ABSTRACT:
In accordance with this invention, a releasable clamping apparatus (10) is constructed having an opening or slot (14) within which a lifting handle (28 or 30) is clamped between retaining latch portions (62, 64) and a clamp assembly (34). The latch portions (62, 64) are supported by openings (56, 58) and are retracted and extended into a slot (14) by spring biased linkage members (78, 80). These members (78, 80) are acted upon by similarly profiled cam lobes (116, 116a, 118, 118a). Dissimilarly profiled cam lobes (126, 128) of the cam member (110) act upon the clamp assembly (34), clamping a handle (28 or 30) against faces (68) of the latch portions (62, 64). The cam member (110) is coupled to a shaft (162) having an operating handle (32), with the shaft (32) also being provided with a detent assembly (202). This detent assembly (202) locks the handle (32) and the shaft (162) in "locked" positions (38 or 40) in the surface (198) of the apparatus (10), which clamps a handle (28 or 30) as described. When the handle (32) is rotated to position the detent assembly (202) in one of the "release" openings (42, 44), the clamp assembly (34) and the latch portions (62, 64) are withdrawn into their respective openings, releasing the handle (28 or 30).
REFERENCES:
patent: 943127 (1909-12-01), Van Boven
patent: 1252776 (1918-01-01), Camper
patent: 2118729 (1938-05-01), Hogan
patent: 2443396 (1948-06-01), McEwen
patent: 2448817 (1948-09-01), McArthur
patent: 3043614 (1962-07-01), Eichmann
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patent: 3469872 (1969-09-01), Damm et al.
patent: 3561802 (1971-02-01), Brockway
patent: 4404714 (1983-09-01), Duran
patent: 4500120 (1985-02-01), Ridgewell et al.
patent: 4554907 (1985-11-01), Overley et al.
Cuomo Peter M.
Glenn Charles E. B.
Manning John R.
Sheehan William J.
The United States of America as represented by the United States
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