The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 1991
Filed:
Mar. 06, 1989
James Mikkelsen, Devils Lake, ND (US);
Other;
Abstract
Sweep tillage tools (10, 10') according to the preferred teachings of the present invention are disclosed including generally flat, horizontal sweep blades (18) generally located behind the implement shank (12) and above the point (28) of the spike (16, 16'). Specifically, the front corners of the sweep blades (18) between their front cutting edges (36) and inside edges (40) are integrally connected to the side edges (34) of a central portion (32, 32'). Gussets (20) are provided having a first side (48) integrally connected generally perpendicular to the inside edges (40) of the sweep blades (18) and having a second side (50) integrally connected to the side edges (34) of the central portion (32, 32') to provide catilever mounting of the sweep blades (18) and to provide support for soil passing over the spike (16, 16') and the sweep blades (18) at their intersection. Furrow fillers (22) are provided having top edges (52) integrally connected to the bottom faces (46) of the sweep blades (18) for moving the soil behind the implement shank (12) and the gussets (20). Applicators (64) may be provided generally behind point (28) of spike (16, 16') and generally in front of sweep blades (18) for applying fertilizer. Thus, tools (10, 10') according to the teachings of the present invention till, fertilize, and incorporate granular fertilizer and/or herbicides into the soil in a one-pass tillage operation.