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:
May. 17, 1977
Filed:
Aug. 20, 1975
Applicant:
Inventor:
Walter J Pleier, Bristol Township, Bucks County, PA (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ; F15B / ;
U.S. Cl.
CPC ...
187 / ; 9141 / ; 91412 ; 187 17 ;
Abstract
Hydraulic systems particularly adaptable for use in industrial lift trucks utilizing two or more hydraulic cylinders to lift a load. The cylinders are positively connected to the load, and valve means are provided for directing pressurized fluid to the working chambers of all cylinders when heavily loaded and to fewer cylinders when lightly loaded. Other valve means are provided for directing fluid to the working chambers of the unpressurized cylinders.