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:
Jul. 09, 2013
Filed:
Sep. 06, 2012
Applicants:
Robin B. Schilling, Darfield, CA;
Matthew S. Naylor, Saskatoon, CA;
Terrance A. Friggstad, Grasswood, CA;
Inventors:
Robin B. Schilling, Darfield, CA;
Matthew S. Naylor, Saskatoon, CA;
Terrance A. Friggstad, Grasswood, CA;
Assignee:
CNH Canada, Ltd., , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01C 5/064 (2006.01); A01C 5/068 (2006.01); A01B 49/06 (2006.01); A01B 61/046 (2006.01); A01B 63/166 (2006.01); A01B 63/26 (2006.01); A01B 71/02 (2006.01); A01B 79/02 (2006.01); A01B 23/06 (2006.01); A01B 71/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A down pressure adjustment assembly for a disc opener of an agricultural implement includes a rockshaft to which one or more disc opener units are mounted and an actuator that rotates the rockshaft. Rotation of the rockshaft causes the disc opener units to be raised or lowered. When the disc opener units are lowered into a field engagement position, further rotation of the rockshaft will cause compression of down pressure springs for each of the disc opener units.