Articulated wrench

Details Articulated wrench Articulated wrench

2006-05-02

2006-05-02

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

Reexamination Certificate

active

07036403

ABSTRACT:
This invention provides an articulated wrench, comprising: a box end; a handle; a fastening device passing through the through holes of the box end and handle; and a flexed spring disc. The fastening device has a head and a shank, wherein the head gradually expands outwards from the shank to form a flared angle having a tapering angle less than 45°. The flexed spring disc is provided in the indent of the box end and flexed along a diameter thereof to form a curvature.

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“Mechanical Design Handbook”, ver. 11, pp. 11a-16, 11a-17, 12-8 and 12-9.
:Web pages of Wilin's tEchnology Industrial Co., Ltd.
“DIN 137 A/B 7.020 Lock washer, and Spring Washer Curved of Bossard 2002 Catalog”, pp. 7.000 and 7.020.
“Mechanical Design Handbook”, ver. 11, pp. 11a-16, 11a-17, 12-8 and 12-9.
Web pages of Wilin's tEchnology Industrial Co., Ltd.
“DIN 137 A/B 7.020 Lock washer, and Spring Washer Curved of Bossard 2002 Catalog”, pp. 7.000 and 7.020.

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