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:
Sep. 07, 2021
Filed:
Dec. 28, 2018
Applicant:
Cnh Industrial Canada, Ltd., Saskatoon, CA;
Inventors:
Stewart J. Millie, Saskatoon, CA;
Andrew J. Williams, Warman, CA;
Assignee:
CNH Industrial Canada, Ltd., Saskatoon, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A01C 7/20 (2006.01); G05D 7/01 (2006.01); A01C 7/04 (2006.01);
U.S. Cl.
CPC ...
A01C 7/20 (2013.01); A01C 7/042 (2013.01); G05D 7/0153 (2013.01);
Abstract
An agricultural air seeder planting unit incorporates control valves that split air flow and change air direction from an air supply to air distribution hoses. The air flow of the control valves is automatically adjusted pneumatically by movement of a piston in response to a total pressure for a uniform velocity air flow from each of the control valves.