Single arm belling tool

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Description

FIG. 1 is a front elevational view of a single arm belling tool, showing my new design, the shaft being shown in the raised position;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front elevational view thereof, with the shaft shown in a lowered position.

Referenced Cited
U.S. Patent Documents
147857 February 1874 Morgan
D267405 December 28, 1982 Wilson
877265 January 1908 Tygart
2354399 July 1944 Noble
2910274 October 1959 Scott
3283834 November 1966 Kammerer
3757876 September 1973 Pereau
3938598 February 17, 1976 Watts
4274675 June 23, 1981 Paurat et al.
4406500 September 27, 1983 Treuhaft et al.
Other references
  • Corsicana Post Hole Drill, Drill on front page. Implement & Tractor, Jan. 31, 1986 p. 21, "F-8 Digger", upper right.
Patent History
Patent number: D325033
Type: Grant
Filed: May 7, 1990
Date of Patent: Mar 31, 1992
Inventor: W. Tom Witherspoon (Richardson, TX)
Primary Examiner: Bernard Ansher
Assistant Examiner: Sandra Morris
Law Firm: Timmons & Kelly
Application Number: 7/519,668