Anti-rolling socket

Details Anti-rolling socket Anti-rolling socket

2006-10-31

2006-10-31

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

C081S120000, C081S124300

Reexamination Certificate

active

07127969

ABSTRACT:
An anti-rolling socket. One end of the socket is formed with a fitting hole for fitting on a threaded member. An annular rib with a certain angle of arch is formed on a circumference of the socket to form a maximum outer diameter of the socket. A distance from a first end of the socket to the rib is longer than a distance from a second end of the socket to the rib. In the case that the annular rib has a 360 degree arch, when the socket is placed on a plane, the annular rib and the first end of the socket contact with the plane. When the socket rolls, the socket rolls about a circle. In the case that the annular rib has an arch that the angle of which is less than 360 degrees, when the socket rolls, the socket can only roll within a range less than one circle.

REFERENCES:
patent: 108143 (1870-10-01), Mandl
patent: 838109 (1906-12-01), Hanes
patent: 5048379 (1991-09-01), Gramera et al.
patent: D437537 (2001-02-01), Carter, Jr.
patent: 6282994 (2001-09-01), Wei
patent: 6726393 (2004-04-01), Tsai et al.
patent: 6951156 (2005-10-01), Garg
patent: 2003/0126960 (2003-07-01), Chen
patent: 2004/0074344 (2004-04-01), Carroll

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