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:
May. 18, 2010
Filed:
Feb. 12, 2008
Haydon Rice, Asquith, CA;
Leonard Bettin, LaGrange Park, IL (US);
Haydon Rice, Asquith, CA;
Leonard Bettin, LaGrange Park, IL (US);
CNH America LLC, New Holland, PA (US);
Abstract
A friction drive for an agricultural planter has a linear actuator, which may be hydraulically or pneumatically controlled, to selectively raise or lower a drive wheel into frictional engagement with a carrying wheel. A valve network is fluidly associated with the linear actuator and allows the operator or pilot to variably define the degree of frictional engagement. This allows the operator to vary the amount of frictional engagement of the drive wheel and the carrying wheel, the output of which is used by a material dispensing system to deposited planting material onto a planting surface.