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:
Jul. 03, 1979
Filed:
Jul. 18, 1977
Applicant:
Inventors:
William J Black, Wilmington, IL (US);
Warner G Richardson, Joliet, IL (US);
Eugene M Wilson, Joliet, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
37-8 ;
Abstract
In a self-loading scraper, an elevator is provided with a linkage assembly for upward movement of the elevator about an axis offset from the center of the elevator. Movable stops carried by the elevator engage with spaced, fixed stops carried by the scraper bowl so as to limit the upward and downward movement of the elevator relative to the cutter blade on the bowl.