Demolition claw

Details Demolition claw Demolition claw

2005-05-27

2008-08-19

Beach, Thomas A (Department: 3671)

Excavating

Combined or convertible

Having quick-connect coupling

C037S406000, C294S106000

Reexamination Certificate

active

07412788

ABSTRACT:
A demolition claw has a support, a pivot pin mounted on the support and centered on and extending along an axis, and two jaws each having a hole through which the pivot pin extends so that the jaws can pivot on the support about the axis. The jaws have adjacent the respective holes confronting flat faces. An arcuate formation fixed on one of the faces adjacent the respective hole projects axially therefrom toward the other of the faces and is generally centered on the axis. A retaining formation fixed on the other of the faces adjacent the respective hole projects axially therefrom toward the one face, is radially offset from the arcuate formation, axially overlaps the arcuate formation, and surrounds the arcuate formation. Structure is provided on one of the jaws for preventing axial separation of the jaws.

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patent: 4355476 (1982-10-01), Engkvist
patent: 5060378 (1991-10-01), LaBounty et al.
patent: 5183216 (1993-02-01), Wack
patent: 5193873 (1993-03-01), Juliusz et al.
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patent: 5769341 (1998-06-01), Morikawa et al.
patent: 5822893 (1998-10-01), Ostermeyer
patent: 5946830 (1999-09-01), Ostermeyer
patent: 6237257 (2001-05-01), Cronk, Jr.
patent: 6328678 (2001-12-01), Romero
patent: 6766973 (2004-07-01), Muri

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