Selective one-way wrench

Details Selective one-way wrench Selective one-way wrench

2005-07-26

2005-07-26

Smith, James G. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C192S043200

Reexamination Certificate

active

06920809

ABSTRACT:
A selective one-way wrench includes an annular head, a gear, a pawl, a transmission and a switch. The annular head defines a first space, a second space communicated with the first space and an aperture communicated with the second space. The gear is rotationally put in the first space. The gear includes a toothed face. The pawl is put in the second space. The pawl includes a toothed side for engagement with the toothed face of the gear. The transmission is rotationally put in the second space. The transmission includes three protrusions selective one of which is put between the rods of the pawl so that the transmission can move the pawl. The switch is put into the second space through the aperture for connection with the transmission.

REFERENCES:
patent: 2003/0196522 (2003-10-01), Hu

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