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:
Dec. 28, 1976
Filed:
Sep. 17, 1975
Harry C Deckler, South Bend, IN (US);
White Farm Equipment Company, Cleveland, OH (US);
Abstract
An improved seed metering apparatus for use in a seed planter of the type having a seed storage hopper and a drop chute for depositing seeds into an underlying furrow comprises a rotatably driven seed metering disc having a plurality of seed receiving pockets about its periphery. As the planter is pulled forward the metering disc rotates and each pocket is caused to pass through a pressurized chamber wherein a predetermined number of seeds are picked up, and then to pass through a compartment of reduced pressure wherein the seeds are released into the drop chute. A pressure-sealed wear-resistant engagement is obtained between the seed metering disc and the chamber walls by means of replaceable wear plates mounted on the wall edges and a coil spring carried on the disc mounting shaft which causes the metering disc to bear against the wear plates during operation.