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:
Dec. 06, 1977
Filed:
Nov. 11, 1976
Applicant:
Inventors:
James Knox Dunn, III, Dubuque, IA (US);
Lee Everett Tucker, Eldridge, IA (US);
Andrew Paul Redman, Dubuque, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ; B21K / ; A01G / ;
U.S. Cl.
CPC ...
144 / ; 72414 ; 7610 / ; 1131 / ; 1443 / ; 144322 ;
Abstract
A tree shear blade is formed by pressing a pre-shaped flat metal plate or blank into a die shaped to turn up opposite side and rear tabs of the blank to form mounting portions of the blade and to cylindrically curve a central portion of the blank to form a cutting portion of the blade. The side and rear tabs are then welded together.