Adjustable spanner with electronic strain gauge function

Details Adjustable spanner with electronic strain gauge function Adjustable spanner with electronic strain gauge function

2008-09-05

2009-08-25

Caputo, Lisa M (Department: 2855)

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

C081S179000

Reexamination Certificate

active

07578219

ABSTRACT:
An adjustable spanner with electronic strain gauge function which comprises a head; an fixed jaw extending from the head; and sliding groove being transversally formed at one upper side of the head; a handle connected to a lower side of the head; at least one strain gauge; a hollow connecting tube having one end connected to the handle; the hollow connecting tube being installed with an output display device; a clamping surface of the moveable jaw and a clamping surface of the fixed jaw being formed as a working area for clamping a screw device; and a positioning portion being installed on the moveable jaw and at a non-working area below the working area; the position portion facing toward a clamping opening between the clamping surfaces of the moveable jaw and fixed jaw; and the positioning portion being capable of resisting against the screw device.

REFERENCES:
patent: 3717054 (1973-02-01), Thompson
patent: 5595098 (1997-01-01), Malkin et al.
patent: 5894768 (1999-04-01), Malkin et al.
patent: 5960683 (1999-10-01), Malkin et al.
patent: 6021694 (2000-02-01), Beger
patent: 6119562 (2000-09-01), Jenkins
patent: 6848343 (2005-02-01), Wu
patent: 6931969 (2005-08-01), Hsien
patent: 7111529 (2006-09-01), Pradelski
patent: 7255026 (2007-08-01), Lee
patent: 2006/0196320 (2006-09-01), Hung et al.

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