Bent wrench having torque measurement function

Details Bent wrench having torque measurement function Bent wrench having torque measurement function

2005-07-26

2005-07-26

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

C081S177100

Reexamination Certificate

active

06920811

ABSTRACT:
A bent wrench includes a wrench body including a handle formed with a bent portion, and at least one strain gauge mounted on a connection of the handle and the bent portion to measure the torque of the wrench body. Thus, the strain gauge is extended through the connection of the bent portion and the two ends of the handle and can measure the torque of the wrench body in the optimum manner due to the smallest structural strength of the connection of the bent portion and the two ends of the handle, so that the strain gauge can measure the torque of the wrench body exactly and optimally.

REFERENCES:
patent: 1793714 (1931-02-01), Newberg
patent: 4006629 (1977-02-01), Barrett et al.
patent: 4522075 (1985-06-01), Pohl
patent: 5172614 (1992-12-01), Monnet et al.
patent: D481276 (2003-10-01), Hu
patent: D481613 (2003-11-01), Macor
patent: 6655239 (2003-12-01), Macor
patent: 2626514 (1989-08-01), None

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