F-type wrench structure

Details F-type wrench structure F-type wrench structure

2005-02-22

2005-02-22

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S177900, C081S177700

Reexamination Certificate

active

06857341

ABSTRACT:
A wrench structure includes a body, a rotation member, a drive rod, a press rod, and an elastic member. The rotation member is rotated relative to the body freely so as to adjust the included angle between the rotation member and the body arbitrarily. Thus, the operation angle of the wrench structure can be adjusted arbitrarily, thereby facilitating the user operating the wrench structure. In addition, the drive rod is limited by the rotation member, so that the drive rod is received in the body without detachment. Further, the press rod is limited by the drive rod, so that the press rod is received in the body without detachment.

REFERENCES:
patent: 4692049 (1987-09-01), Engle
patent: 4711145 (1987-12-01), Inoue
patent: 5390571 (1995-02-01), Fox et al.
patent: 5531140 (1996-07-01), Chow
patent: 6000302 (1999-12-01), Chiang
patent: 6006632 (1999-12-01), Hsieh
patent: 6131490 (2000-10-01), Lee
patent: 6216567 (2001-04-01), Hu
patent: 6220125 (2001-04-01), Lan
patent: 6405621 (2002-06-01), Krivec et al.
patent: 6557442 (2003-05-01), Owoc
patent: 6755100 (2004-06-01), Chen
patent: 20030110907 (2003-06-01), Hu

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