Head unit for a post hole digger

- USM Corporation
Description

FIG. 1 is a front elevational view of a head unit for a post hole digger illustrating my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
1407232 February 1922 Stevens
1428202 September 1922 Arndt
2487518 November 1949 Brooke
2510584 June 1950 Kanagawa
2735712 February 1956 Hart
2823060 February 1958 Sullivan et al.
Patent History
Patent number: D287218
Type: Grant
Filed: Aug 8, 1984
Date of Patent: Dec 16, 1986
Assignee: USM Corporation (Farmington, CT)
Inventor: William E. Portz (Anderson, SC)
Primary Examiner: B. J. Bullock
Assistant Examiner: Brian N. Vinson
Attorney: Barry E. Deutsch
Application Number: 6/638,842
Classifications
Current U.S. Class: D 8/7