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. 16, 1988
Filed:
Sep. 29, 1986
Keith A Wheeler, Blue Springs, MO (US);
Deutz-Allis Corporation, Milwaukee, WI (US);
Abstract
An agricultural implement is equipped with a plurality of earthworking tools spaced from one another in the fore and aft direction. One of the tools is adjustable between working and nonworking positions on a main frame by a hydraulic actuator connected to the main frame by a resiliently cushioned support which includes a spring loaded link. The one tool includes a coulter gang supported on a subframe by a pair of U-shaped springs. The deflection of the U-shaped springs and the spring loaded link allows the coulter gang to pass over relatively large boulders or the like without raising the implement frame to a significant extent and without causing the relief valve in the actuator hydraulic system to open.