Drill-chuck jaw with hard-metal inserts

Details Drill-chuck jaw with hard-metal inserts Drill-chuck jaw with hard-metal inserts

2005-04-26

2005-04-26

Howell, Daniel W. (Department: 3722)

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

C279S062000, C279S152000

Reexamination Certificate

active

06883808

ABSTRACT:
A drill-chuck jaw hag an elongated metal body formed with a toothed back face and an opposite front face. The body is generally symmetrical to a longitudinal plane bisecting the back and front faces. A pair of hard-metal insert parts fixed to the front face are each formed with a projecting linear edge extending longitudinally parallel to but offset from the plane. The edges symmetrically flank the plane.

REFERENCES:
patent: 1633828 (1927-06-01), Sloan
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patent: 4097054 (1978-06-01), Derbyshire
patent: 4752165 (1988-06-01), Wanner
patent: 5340128 (1994-08-01), Weiss et al.
patent: 6427555 (2002-08-01), Mack
patent: 6648341 (2003-11-01), Gaddis et al.
patent: 20030066390 (2003-04-01), Mack
patent: 3122876 (1982-12-01), None
patent: 3443186 (1986-05-01), None
patent: 3644707 (1988-07-01), None
patent: 29922011 (2000-02-01), None
patent: 370963 (1932-04-01), None

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