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:
Mar. 01, 1977
Filed:
Apr. 09, 1976
Applicant:
Inventor:
Larry G Eftefield, Joliet, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
3712 / ; 37129 ;
Abstract
An earthmoving scraper having a tractor-drawn bowl with a pivotal apron thereon, and a lift linkage assembly comprising a pair of articulately connected links, one link being articulately connected to the sidewall of the bowl and the other link being articulately connected to the center of the front side of the apron, and a hydraulic jack connected between the articulately connected links and the bowl sidewall.