Torque-setting device

Details Torque-setting device Torque-setting device

2009-05-03

2010-11-23

Caputo, Lisa M (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

Reexamination Certificate

active

07836781

ABSTRACT:
A torque-setting device includes a handle with grooves defined in an internal side, a driving unit attached to the handle, a strain gauge connected to the driving unit, a strain spring abutted against the strain gauge, a nut abutted against the strain spring, an axle and a knob. The axle includes a thread. The thread is engaged with the nut. The knob includes a tooth on an external side. The knob is operable to rotate the axle relative to the nut, thus moving the nut relative to the strain spring to set a value of torque. The knob is movable between a first position where the tooth is inserted in one of the grooves to retain the value of torque and a second position where the tooth is removed from the grooves to allow the rotation of the knob and therefore the rotation of the axle.

REFERENCES:
patent: 2343380 (1944-03-01), Larson et al.
patent: 2374217 (1945-04-01), Larson et al.
patent: 2682796 (1954-07-01), Larson
patent: 6334377 (2002-01-01), Wu

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