Tube end squaring tool

- Tri Tool, Inc.
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Description

FIG. 1 is a top left front perspective view of the tube end squaring tool of our new design;

FIG. 2 is another top right rear perspective view of the tube end squaring tool of our new design;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left elevational side view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D255642 July 1, 1980 Erpenbeck et al.
D288167 February 10, 1987 Urspruch
3798765 March 1974 Mattsson
4628779 December 16, 1986 Louis
4739682 April 26, 1988 Birkenstrand
4825543 May 2, 1989 Thalmann et al.
4845850 July 11, 1989 Rothenberger
Other references
  • Portable bit sharpener #23929, Leichtung Work Shops Catalog, Summer 1991, p. 12.
Patent History
Patent number: D383960
Type: Grant
Filed: Jul 10, 1995
Date of Patent: Sep 23, 1997
Assignee: Tri Tool, Inc. (Rancho Cordova, CA)
Inventors: William E. Sandford (Camino, CA), Henry Astle (Rancho Cordova, CA)
Primary Examiner: B. J. Bullock
Assistant Examiner: Robert M. Spear
Law Firm: Bacon & Thomas
Application Number: 0/41,246
Classifications
Current U.S. Class: D 8/61; D8/70
International Classification: 0801;