Returning assembly of spanner

Details Returning assembly of spanner Returning assembly of spanner

2007-08-28

2007-08-28

Ackun, Jr., Jacob K. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S060000

Reexamination Certificate

active

11401432

ABSTRACT:
A returning assembly of a spanner includes a driving portion having a receiving space, a switch unit and an ejecting unit having a truncated conic shape; a radial direction of the driving head having a slightly inclined buckling surface; the buckling surface and an inner wall of the receiving space being formed with a semilunar buckling space for receiving the ejecting unit; the ejecting unit serving for controlling the returning directions of the driving head. The driving head has a driving block which are arranged at an axial direction of the driving head for installing a socket or other driving assembly. A switch unit is installed in the driving head. The switch unit has a control end projected from the driving portion and a resisting end. The ejecting unit having a receiving chamber for receiving a resisting unit for firmly securing the ejecting unit in the buckling space.

REFERENCES:
patent: 6067881 (2000-05-01), Albertson
patent: 6807881 (2004-10-01), Wu

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