Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
2007-02-06
2007-02-06
Meilsin, D. S. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C081S177700, C411S154000, C411S545000, C403S146000
Reexamination Certificate
active
10919561
ABSTRACT:
A wrench combination includes a handle with an ear defining an aperture and an annular groove around the aperture. A wrench includes an annular head, an ear extending from the annular head and an annular gear put in the annular head. A washer is put in the annular groove defined in the ear of the handle. A washer is put in the annular groove defined in the ear of the wrench. Each washer includes an aperture, first and second pairs of contact locations at opposite positions of the aperture on a first side. Each washer also includes a central contact location intermediate each pair of contact locations and two lateral contact locations on an opposite second side. The central contact locations are located intermediate the two lateral contact locations. A joint includes a first pair of ears for sandwiching the ear of the handle and a second pair of ears for sandwiching the ear of the wrench. A first bolt is driven in the first pair of ears of the joints, the ear of the handle and the aperture of the washer put in the annular groove defined therein. A second bolt is driven in the second pair of ears of the joint, the ear of the wrench and the aperture of the washer portion in the annular groove defined therein.
REFERENCES:
patent: 713255 (1902-11-01), Traut
patent: 6361257 (2002-03-01), Grant
patent: 2003/0015070 (2003-01-01), Chen
Kamrath Alan D.
Meilsin D. S.
Nikolai & Mersereau , P.A.
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