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:
Oct. 15, 1996
Filed:
Jun. 13, 1994
Applicant:
Inventors:
Irvin Burns, Walloon Lake, MI (US);
Patrick Robbins, Petoskey, MI (US);
Michael J Yankaitis, Roscoe, IL (US);
Assignee:
Rockford Manufacturing Group, Inc., Roscoe, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 79 ; 140147 ;
Abstract
Wire is straightened as an incident to being pulled through axially spaced upstream, intermediate and downstream straightening dies carried within a rotating arbor. Each die is formed with a groove which is specially shaped to cause the wire to tend to follow its natural path as the wire is straightened, the shape of the grooves reducing high stress concentrations on the dies and increasing the service life thereof.