Electric driver

Details Electric driver Electric driver

2008-05-13

2008-05-13

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

C081S476000

Reexamination Certificate

active

07370561

ABSTRACT:
A power screwdriver (10) includes a bit holder (14) bored to receive the shaft of a screwdriver bit (12) and adapted to securely hold the screwdriver bit (12) in place, and a housing (18) having a through cavity (16). The bit holder (14) is inserted into the through cavity (16) so that the bit holder (14) is rotatable about and movable along the axis of the bit holder. This arrangement securely holds the screwdriver bit and thus, minimize rattling of the screwdriver bit during rotation.

REFERENCES:
patent: 2963134 (1960-12-01), Banner
patent: 3596542 (1971-08-01), Wallace
patent: 3613751 (1971-10-01), Juhasz
patent: 3616883 (1971-11-01), Sindelar
patent: 4774864 (1988-10-01), Dossier
patent: 4836349 (1989-06-01), Sakamoto et al.
patent: 58-93474 (1983-06-01), None
patent: S58-093474 (1983-06-01), None
patent: S58-143173 (1983-09-01), None
patent: S59-054828 (1984-03-01), None
patent: S59-054828 (1984-03-01), None
patent: 60-90676 (1985-05-01), None
patent: S60-090676 (1985-05-01), None
patent: 60-80872 (1985-06-01), None
patent: S60-080872 (1985-06-01), None
patent: 33998/1988 (1988-03-01), None
patent: H01-138673 (1989-09-01), None
patent: H01-138673 (1989-09-01), None

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