Wrench with electronic torque display unit

Details Wrench with electronic torque display unit Wrench with electronic torque display unit

2008-04-25

2010-02-16

Meislin, D. S (Department: 3727)

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

C073S862230

Reexamination Certificate

active

07661341

ABSTRACT:
A wrench with electronic torque display unit includes a torque adjustment mechanism which includes a sleeve, two gears, a rod and a movable tube, and a locking mechanism which includes a positioning cap, wherein the value of the torque to be output can be set by operating the adjustment mechanism by rotating the positioning cap. The pre-set value is displayed on the display screen so as to provide a wrench with convenient operation and precise feature.

REFERENCES:
patent: 3666021 (1972-05-01), Whitehouse
patent: 3895517 (1975-07-01), Otto
patent: 4125016 (1978-11-01), Lehoczky et al.
patent: 4620449 (1986-11-01), Borries et al.
patent: 5537877 (1996-07-01), Hsu
patent: 6948380 (2005-09-01), Shiao et al.
patent: 7000508 (2006-02-01), Li et al.
patent: 7047849 (2006-05-01), Lai

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