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:
Nov. 19, 1991
Filed:
Jul. 24, 1990
Applicant:
Inventors:
Leroy Rudolph, Jr, Dubuque, IA (US);
Dennis A Brimeyer, Dubuque, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K / ;
U.S. Cl.
CPC ...
761011 ;
Abstract
A process for forming a moldboard blade for a grader by inducing beneficial residual stresses during fabrication. This increases the strength of the blade without adding additional material and weight. The blade is first bowed towards its supporting structure surface. The supporting structure is welded to the blade and the blade is released. The blade is then bent in the opposite direction towards its working surface and released. The blade is then checked to determine if it is straight. If the blade is not straight it is bent again until it is straight.