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:
Jan. 06, 1987
Filed:
Aug. 31, 1984
Harold R Lindstrom, Des Moines, IA (US);
Virgil D Haverdink, Ankeny, IA (US);
Deere & Company, Moline, IL (US);
Abstract
In a seeding implement, an opener assembly including a compact, arc-shaped opener with a point supported below the surface of the ground during the field-working operation to prevent hairpinning of trash and allow high-speed seeding. The compact configuration reduces variations in seed placement and minimizes side bend forces. The nose configuration of the opener limits the amount of soil that is lifted and thrown to accommodate narrow row spacings. A notched structure is removably mounted on the boot standard of the assembly and the opener is attached to the structure with a single pin. The support structure bears substantially all the loading on the opener during operation and provides convenient mounting and removal of the opener.