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:
Dec. 06, 1983
Filed:
Mar. 16, 1981
Applicant:
Inventor:
Tsutomu Fujimoto, Fujiidera, JP;
Assignee:
Kuboto, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01B / ; B60D / ;
U.S. Cl.
CPC ...
172-7 ; 2804 / ;
Abstract
A tractive force sensing system for tractor provided with a hydraulic device for tractor having a draft control function to actuate an oil pressure control valve through a draft cam by tractive load from lower links. Tractive force will be sensed by the resilient bent and deformation of a lower link support, and such bent and deformation of the support will be converted into the swing of a first feedback link 35', thereby to directly actuate a draft cam, whereby an oil pressure control valve interlockingly connected to the draft cam will be actuated.