Replaceable tillage point

- Acra-Plant, Inc.
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
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
Other references
  • 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
Classifications