Clamping wrench

Details Clamping wrench Clamping wrench

2006-05-16

2006-05-16

Thomas, David B. (Department: 3723)

Tools

Tool jaw

Jaw features

C081S385000, C081S412000

Reexamination Certificate

active

07044033

ABSTRACT:
The invention relates to a spanner for hexagonal shaped objects (5), comprising an upper and lower jaw (1or2), which are respectively connected in a single-piece to the limb of a handle (4or3). Both jaws (1, 2) are connected together in a pivoting manner in a length-adjustable single joint (6). The upper jaw (1) comprises a flat, smooth clamping surface (9) and a stop (10). The lower jaw (2) comprises a curved convex, flat clamping cam surface (11), which lies adjacent to a respectively associated lower flank surface (12) for all hexagonal objects (5) of all wrench sizes which are to be accommodated.

REFERENCES:
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patent: 2194049 (1940-03-01), Mead
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patent: 3635107 (1972-01-01), Schmidt
patent: 4651597 (1987-03-01), Yang
patent: 6026714 (2000-02-01), Chang
patent: 6092440 (2000-07-01), Hillinger
patent: 6311586 (2001-11-01), Hirse
patent: 6339978 (2002-01-01), Hirse
patent: 1603798 (1971-02-01), None
patent: 4445827 (1996-06-01), None
patent: 19518555 (1996-11-01), None
patent: 19930367 (2001-01-01), None
patent: 0610695 (1994-08-01), None

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