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:
Feb. 11, 2014
Filed:
May. 28, 2010
Cory Adrian Yuen, Martensville, CA;
Cory Adrian Yuen, Martensville, CA;
CNH Canada, Ltd., Saskatoon, Saskatchewan, CA;
Abstract
A farm implement has a frame that is foldable between an extended, working position and a folded, for-transport position has a hydraulic system that controls the flow of hydraulic fluid to a series of actuators that raise and lower the implement. The hydraulic system is controlled by a control lever or arm that rotates a rockshaft to open and close hydraulic valves to change the flow of hydraulic fluid to the actuators. To prevent the unintentional lowering of the implement frame when the implement is in transport, a lockout arrangement engages the rockshaft to prevent rotation of the rockshaft when the frame is in the folded position. The lockout arrangement locks out the rockshaft automatically when the frame is raised to the folded position.