Tool shank for an abrasive article

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Description

FIG. 1 is a front elevational view of a tool shank for an abrasive article showing my new design, the rear elevational view is a mirror image thereof;

FIG. 2 is a right end elevational view thereof;

FIG. 3 is a top plan view thereof, the bottom plan view is a mirror image thereof; and

FIG. 4 is a left end elevational view thereof.

The rear and bottom view are mirror images of the front and plan views, respectively.

Referenced Cited
U.S. Patent Documents
2728365 December 1955 Austin
3167892 February 1965 Anecki
4237659 December 9, 1980 Welsch et al.
Other references
  • Leichtung "Handys" Catalog, p. 56, center panel Power Drill Screwdriver/Socketdriver. Black & Decker Power Tools & Access Catalog .COPYRGT.1985, p. 46, lower three panels "screwdriver bit and socket sets" #71-373 #U1382, #U1379.
Patent History
Patent number: D318781
Type: Grant
Filed: Sep 4, 1987
Date of Patent: Aug 6, 1991
Inventor: Nobuo Nishiki (Sanko Dai-Roku Heights, Taisho-ku, Osaka-shi, Osaka-fu)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Gary D. Watson
Law Firm: Fleit, Jacobson, Cohn, Price, Holman & Stern
Application Number: 7/92,934
Classifications
Current U.S. Class: D 8/70