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:
Oct. 16, 1979
Filed:
Dec. 22, 1977
Applicant:
Inventors:
Ryoichi Tanaka, Neyagawa, JP;
Tadao Adachi, Sakai, JP;
Assignee:
Kubota, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F / ; E02F / ; B66F / ;
U.S. Cl.
CPC ...
414687 ; 37103 ; 60477 ; 212 / ; 212 / ; 414694 ; 91525 ;
Abstract
A work vehicle having a work arm assembly mounted for horizontal oscillation on a swivel platform. The arm assembly and the swivel platform are actuated by separate hydraulic actuators. The two actuators are connected in parallel with one another to a control valve via a circuit selection valve. The arrangement enables the swivel platform and the arm assembly to move in the same direction by operating the control valve.