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:
Feb. 21, 1978
Filed:
May. 25, 1976
Applicant:
Inventors:
Stephen H Gill, Aurora, IL (US);
Harvey A Knell, Joliet, IL (US);
Joseph M Tucker, III, Aurora, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
2141 / ; 214771 ;
Abstract
A hydraulic excavator having linkage providing for a front loading arrangement whereby the bucket opens away from the vehicle comprises power cylinders and linkage arranged to provide a balanced system providing maximum application of power and optimum use of power applied to the material-handling bucket. The power cylinders are connected to the linkage in a manner to utilize maximum leverage of the linkage when maximum power is needed.