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:
Jun. 30, 1987
Filed:
Jul. 05, 1985
Applicant:
Inventor:
Martin E Pruitt, Hesston, KS (US);
Assignee:
Hesston Corporation, Hesston, KS (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01D / ;
U.S. Cl.
CPC ...
56208 ; 56 158 ; 56 152 ; 172466 ;
Abstract
In a harvester wherein the frame is raised relative to ground wheels for roading purposes and such elevation of the frame stretches flotation springs to thereby lift the harvesting header off the ground, the amount of flotation force exerted by the springs on the header can be quickly and easily adjusted by only partially raising the frame and then inserting mechanical stops which prevent retraction of hydraulic lifting cylinders when pressure is relieved therein. By inserting a variable number of such stops in a stack, the flotation force can likewise be adjustably varied.