Drill chuck adapter

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Description

FIG. 1 is an elevated view depicting the part of the adapter that receives the square rotor of an impact wrench, the side of which has a set screw as a locking mechanism to lock adapter on said square rotor of the impact wrench thereof.

FIG. 2 is an elevated view of the adapter depicting a threaded shaft that screws into a threaded opening of a drill chuck (not shown). Said threaded shaft having a left-handed threaded bore at it's end which accommodates a left-handed screw. Said left-handed screw prevents loosening of shaft on said drill chuck when reverse drilling is applied thereof; and,

FIG. 3 is a cross sectional view thereof, drawn for clarity of above specification herein.

Claims

The ornamental design for a drill chuck adapter, as shown and described.

Referenced Cited
U.S. Patent Documents
4296656 October 27, 1981 Ernst
D329581 September 22, 1992 Vest
5191666 March 9, 1993 Corbin
D379420 May 27, 1997 Standlee et al.
D383315 September 9, 1997 Woodring
D416267 November 9, 1999 Reilly
D560109 January 22, 2008 Huang
Patent History
Patent number: D605921
Type: Grant
Filed: Jun 23, 2009
Date of Patent: Dec 15, 2009
Assignee: (Valencia, CA)
Inventor: John Robert Cowan (Valencia, CA)
Primary Examiner: Antoine D Davis
Application Number: 29/315,403
Classifications
Current U.S. Class: D8/70