Clamping device for lifting slab, panel or sheet material

Details Clamping device for lifting slab, panel or sheet material Clamping device for lifting slab, panel or sheet material

2003-01-14

2009-02-17

Chin, Paul T (Department: 3652)

Handling: hand and hoist-line implements

Grapple

Socket and slip wedge

C294S103100, C294S901000, C269S095000

Reexamination Certificate

active

07490882

ABSTRACT:
A clamping device suitable for lifting and handling of sheet like-objects has a fixed jaw parallel to a movable jaw. The movable jaw is supported for reciprocating, linear movement towards and away from the fixed jaw responsive to a tensile actuating force. The movable jaw comprises a clamping plate inclined at an angle of about 8 to 12 degrees with respect to first and second clamping surfaces. The clamping plate maintains said angle during movement to and from the fixed jaw. A tensile force transmitting member is guided and supported at an upper location of the clamping plate that substantially aligns with or overhangs the second clamping surface.

REFERENCES:
patent: 1272359 (1918-07-01), Bell
patent: 1279359 (1918-09-01), Bell
patent: 5893595 (1999-04-01), Corbett
patent: 7156436 (2007-01-01), Nguyen
patent: 2006/0197350 (2006-09-01), Nguyen
patent: 2006/0202496 (2006-09-01), Davis
patent: 2500249 (2006-09-01), None
patent: 19923788 (2000-12-01), None

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