Ratchet coupler for screw driver

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Description

FIG. 1 is a perspective view of a ratchet coupler for screw driver showing my new design;

FIG. 2 is a front elevational view thereof; (the rear; left; right views are the same as the front elevational view)

FIG. 3 is a top plain view thereof;

FIG. 4 is a bottom plain view thereof; and,

FIG. 5 is a perspective view thereof, wherein the broken line showing of the ratcheting screw driver is for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a ratchet coupler for screw driver, as shown and described.

Referenced Cited
U.S. Patent Documents
D108143 January 1938 Mandl
D323449 January 28, 1992 Corona et al.
D379577 June 3, 1997 Carkhuff
D421888 March 28, 2000 Thompson et al.
6070501 June 6, 2000 Braun et al.
D434630 December 5, 2000 Oliver et al.
D435773 January 2, 2001 Lin
6240810 June 5, 2001 Ho
D446706 August 21, 2001 Kalomeris et al.
D449505 October 23, 2001 Glass et al.
D481612 November 4, 2003 Tsai
D485482 January 20, 2004 Romanski et al.
6817458 November 16, 2004 Gauthier
Patent History
Patent number: D520841
Type: Grant
Filed: Sep 9, 2004
Date of Patent: May 16, 2006
Inventor: Tan Chin Huang (Dali City, Taichung County 412)
Primary Examiner: Philip S. Hyder
Attorney: Rosenberg, Klein & Lee
Application Number: 29/212,836
Classifications
Current U.S. Class: D8/83