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. 21, 1977
Filed:
Mar. 29, 1976
Donald J Parquet, Burlington, IA (US);
Carl O Pedersen, Burlington, IA (US);
J. I. Case Company, Racine, WI (US);
Abstract
A control system for connecting a manually actuated lever to an arm of a fluid translating device that forms part of the drive transmission for a skid steer vehicle is disclosed herein. The connection between the lever and the arm is in the form of a hydraulic fluid connection that includes master and slave cylinder and piston assemblies with the master cylinder and piston assembly connected to the lever and the slave cylinder and piston assembly connected to the control arm. The opposite ends of the respective cylinders on opposite sides of the respective pistons are interconnected by fluid conduits to define first and second chambers and both pistons are biased to a centered neutral position. The system also incorporates a hydraulic fluid reservoir that is connected to the master cylinder by ports located in close proximity to the master piston when it is in a neutral position so that any fluid losses in either cylinder are automatically replenished when the master piston is returned to the neutral position.