Post hole digger blade

- Uniontools
Description

FIG. 1 is a front elevational view of a posthole-digger blade embodying our design;

FIG. 2 is a right side elevational view thereof; the left side elevational view being a mirror image of the right side elevational view;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a partial cross-sectional view thereof taken across line 6--6 of FIG. 1;

FIG. 7 is a cross-sectional view thereof; taken across line 7--7 of FIG. 1;

FIG. 8 is a reduced scale environmental perspective view thereof;

FIG. 9 is an enlarged front elevational view of a second embodiment of our invention;

FIG. 10 is a right side elevational view thereof, the left side elevational view being a mirror image of the right side elevational view;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a bottom plan view thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a cross-sectional view thereof across line 14--14 of FIG. 11;

FIG. 15 is a partial cross-sectional view thereof across line 15--15 of FIG. 11;

FIG. 16 is a reduced scale environment perspective view thereof;

FIG. 17 is a partial cross-sectional view of the first embodiment of our invention across line 17--17 of FIG. 1; and,

FIG. 18 is a partial cross-sectional view of the second embodiment of our invention across line 18--18 of FIG. 11.

The broken line showing of fragmented handles and an adjacent blade is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D32852 June 1900 Mann
816236 March 1906 Kline
1484755 February 1924 Black
2436500 February 1948 Anderson
2598288 May 1952 Navarre
2708593 May 1955 Benoist
2710765 June 1955 Arens
2812700 November 1957 Nelson
3291231 December 1966 Kammer
3369834 February 1968 Miles
3782770 January 1974 Lee
3847227 November 1974 Myers
4042270 August 16, 1977 Weiland
4247141 January 27, 1981 Grint
4400029 August 23, 1983 Delpidio
4473248 September 25, 1984 Preradovich
4778211 October 18, 1988 Gabriel
4930825 June 5, 1990 Dearman
5273331 December 28, 1993 Burnham
5320363 June 14, 1994 Burnham
5427189 June 27, 1995 Bennett
5431467 July 11, 1995 Mlecka
5456449 October 10, 1995 Smith
Foreign Patent Documents
44740 January 1935 FRX
Other references
  • Hardware Age, p. 74, post hole digger circled in right corner, May 1984. Union Fork and Hoe Company, p. 50, post hole digger, any on page, Dec. 1986 .
Patent History
Patent number: D401125
Type: Grant
Filed: Aug 21, 1996
Date of Patent: Nov 17, 1998
Assignee: Uniontools (Columbus, OH)
Inventors: David Bonnes (Westerville, OH), Herbert Wehner (Columbus, OH)
Primary Examiner: Holly Baynham
Law Firm: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
Application Number: 0/58,705
Classifications
Current U.S. Class: D 8/7
International Classification: 0801;