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:
Apr. 28, 1992
Filed:
Nov. 21, 1990
Applicant:
Inventors:
Bernard Wattron, Saverne, FR;
Roland Helfer, Lampertheim, FR;
Assignee:
Kuhn s.a., Saverne Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
A01D / ;
U.S. Cl.
CPC ...
56 157 ; 56218 ; 56DI / ; 56DI / ;
Abstract
A farm machine comprises at least one group of working elements and a structure having a hitching mechanism for hitching the farm machine to a motor vehicle during work. The group of working elements is connected to the structure which comprises a tongue (hitching mechanism), and a frame through a deformable quadrilateral suspension device which comprises suspension elements each one of which is connected to the structure through a first joint and to the group of working elements through a second joint.