Torque wrench

Details Torque wrench Torque wrench

2007-01-30

2007-01-30

Meislin, D. S. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

Reexamination Certificate

active

10311173

ABSTRACT:
A torque wrench for applying torque to a component (21) is described. The torque wrench has an engaging member (18) for engaging the component (21) to be rotated about an axis (22) and a ratchet member (25) connected to the engaging member (18). A drive lever (14) is connected to the engaging member (18) via the ratchet member (25) such that rotation of the drive lever (14) in one sense about axis (22) applies torque to the engaging member (18) and rotation of the drive lever (14) in the opposite sense applies torque below a predetermined value to the engaging member (18). A connecting member (12) is pivotably connected to the drive lever (14) remote from the engaging member (18) and is adapted to be engaged by a head (10) of a piston (6) having reciprocating linear movement to alternately rotate the drive lever (14) in opposite senses about axis (22). The connecting member (12) is slidable relative to the piston head (10) in a direction transverse to the direction of reciprocal linear movement.

REFERENCES:
patent: 4027561 (1977-06-01), Junkers
patent: 4079641 (1978-03-01), Junkers
patent: 5005447 (1991-04-01), Junkers

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