Screwdriver with a screw holder

Details Screwdriver with a screw holder Screwdriver with a screw holder

2005-12-06

2005-12-06

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S125000, C081S448000

Reexamination Certificate

active

06971293

ABSTRACT:
A screwdriver is disclosed having a shaft with a screw holder. The screw holder is receivable in a recess in a screw head, and has a spring element which can be elastically deformed transverse to the longitudinal axis of the shaft. A portion of the spring element may be engaged with a bore in the shaft and the bore may penetrate the front end of the shaft. The elastic segment may be disposed in a groove parallel to the longitudinal axis of the shaft segment so that, in the unstressed state of the spring element, at least a portion of the elastic segment protrudes beyond the cross-sectional surface of the shaft segment to engage a surface of the screw head recess to thereby retain the screw on the shaft.

REFERENCES:
patent: 2800822 (1957-07-01), Allred
patent: 2811883 (1957-11-01), Cleaves
patent: 3286749 (1966-11-01), Learned
patent: 3436107 (1969-04-01), Karden
patent: 4007768 (1977-02-01), Matsushima
patent: 4060114 (1977-11-01), Matsushima
patent: 5237893 (1993-08-01), Ryder et al.
patent: 5323673 (1994-06-01), Martinez et al.
patent: 0 458 449 (1991-11-01), None
patent: WO 00 20174 (2000-04-01), None

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