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:
Apr. 12, 2022
Filed:
Feb. 05, 2018
Deere & Company, Moline, IL (US);
Elijah B. Garner, Bettendorf, IA (US);
Stanley R. Borkgren, Geneseo, IL (US);
Cary S. Hubner, Geneseo, IL (US);
Beth A. Wolfs, Tiffin, IA (US);
Michael E. Frasier, Iowa City, IA (US);
Joseph W. Migliorini, Moline, IL (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
A row unit for a seeding machine includes a seed reservoir and a seed meter having a metering member with a seed side facing the seed reservoir, a non-seed side opposite the seed side, and a plurality of apertures. The seed meter is operable by pressure differential between the non-seed side and the seed side to adhere seeds to the seed side and move seeds from the seed reservoir. A conduit has a venturi with a throat disposed adjacent the metering member. The throat presents an opening directed toward the seed side and the plurality of apertures. The opening is configured to receive a seed adhered to one aperture of the plurality of apertures. An air pressure source is configured to provide greater than atmospheric air pressure on the non-seed side such that during operation of the row unit an air stream passes through the one aperture toward the opening.