Drill gripping device and method

Details Drill gripping device and method Drill gripping device and method

2007-10-23

2007-10-23

Dang, Hoang (Department: 3672)

Boring or penetrating the earth

With orienting or racking means for unconnected tools or...

C081S057340, C081S057190, C166S077530

Reexamination Certificate

active

10754221

ABSTRACT:
A drill gripping device is shown with an inexpensive and compact design. In one embodiment, an inexpensive and more compact design is possible through the use of a single actuator with a single gripping portion of a drill gripping device. Embodiments of drill gripping devices shown are further reduced in price and size due to a force amplification device such as a camming arm. Alternatively, an increased gripping force is possible using an existing size actuator. A drill gripping device is shown with increased precision in gripping. A pair of gripping jaws are synchronized to improve jaw centering capabilities.

REFERENCES:
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patent: 4703811 (1987-11-01), Lam
patent: 4732061 (1988-03-01), Dinsdale
patent: 4843945 (1989-07-01), Dinsdale
patent: 5388652 (1995-02-01), Smith
patent: 5520072 (1996-05-01), Perry
patent: 6752043 (2004-06-01), Carlson
patent: 2002/0157870 (2002-10-01), Bischel et al.
EU Search Report for International Application No. PCT/US2004/000587, (May 13, 2004), 3 pgs.

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