Torque ratchet wrench

Details Torque ratchet wrench Torque ratchet wrench

2007-09-18

2007-09-18

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

C081S052000, C081S468000

Reexamination Certificate

active

11486846

ABSTRACT:
This invention relates to a torque ratchet wrench that comprises a wrench body with a handle at one end and a wrench head at the other end, a driving head would be used for connecting with work pieces, a control device being installed inside the wrench head for using to activate the driving head to run with turning of the wrench in one direction and to void the driving head to run with turning of the wrench in the other direction, a mark plate being implemented on the wrench body with notched torque scales, and an indicator being fixed on the wrench head at one end and extending to above the mark plate at the other end. When the wrench body is driving the driving head rotating, the torque value applied on the wrench driving the work piece can be measured from reading the pointing of the indicator to the notched torque scale on the mark plate.

REFERENCES:
patent: 3009371 (1961-11-01), Hines et al.
patent: 3487732 (1970-01-01), Larson

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