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. 12, 1994
Filed:
Mar. 12, 1993
Applicant:
Inventor:
Bryant F Webb, Ephrata, PA (US);
Assignee:
Ford New Holland, Inc., New Holland, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A01D / ;
U.S. Cl.
CPC ...
56 158 ; 56 144 ;
Abstract
A flotation mechanism for use on a crop harvesting machine having a header suspended from the frame thereof by flotation springs is disclosed wherein a hydraulic cylinder interconnects the frame and at least one of the springs to allow selective adjustment of the weight of the header supported from the frame. The extensible hydraulic cylinder is operable to vary the length of at least one of the flotation springs while the crop harvesting machine is in operation and movable over the ground.