Replaceable tillage point
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Description
FIG. 1 is a top plan view of a replaceable tillage point embodying our design in accordance with the present invention;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a bottom view of the replaceable tillage point shown in FIG. 1 as viewed at right angles to the inclined longitudinal axis of the point;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is an enlarged left front perspective view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D237644 | November 1975 | Williams et al. |
D239650 | April 1976 | Clark et al. |
D284010 | May 27, 1986 | Voyce |
D285205 | August 19, 1986 | Johnson |
D297940 | October 4, 1988 | Edmisson |
4033271 | July 5, 1977 | Williams et al. |
4748754 | June 7, 1988 | Schwappach |
4932473 | June 12, 1990 | Jones |
5027535 | July 2, 1991 | Maguina-Larco |
- Wethrell V model deep-till.
Patent History
Patent number: D341839
Type: Grant
Filed: Mar 15, 1991
Date of Patent: Nov 30, 1993
Assignee: Acra-Plant, Inc. (Garden City, KS)
Inventors: Robert A. Williams (Garden City, KS), William A. Bell (Garden City, KS)
Primary Examiner: Bernard Ansher
Assistant Examiner: Sandra Morris
Law Firm: Hovey, Willliams, Timmons & Collins
Application Number: 7/670,223
Type: Grant
Filed: Mar 15, 1991
Date of Patent: Nov 30, 1993
Assignee: Acra-Plant, Inc. (Garden City, KS)
Inventors: Robert A. Williams (Garden City, KS), William A. Bell (Garden City, KS)
Primary Examiner: Bernard Ansher
Assistant Examiner: Sandra Morris
Law Firm: Hovey, Willliams, Timmons & Collins
Application Number: 7/670,223
Classifications
Current U.S. Class:
Disc, Rotary Hoe, Or Tooth (D15/29)