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:
Feb. 08, 1977
Filed:
Aug. 25, 1975
Applicant:
Inventors:
Shigenori Omori, Uozu, JA;
Fumio Terada, Uozu, JA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21F / ;
U.S. Cl.
CPC ...
72 66 ; 72145 ;
Abstract
A device for shaping and transporting coil fastener elements which comprises a rotatable screw and an oppositely disposed rotating means having an endlessly toothed periphery. A mandrel of a coiling unit is arranged between the rotating screw and the rotating means with its extension curved in conformity with the periphery of the rotating means. Convolutions formed successively around the mandrel are shaped and transported between screws and rotating means and, upon departure and disengagement from the screw, are continued to advance in driving engagement with the rotating means toward a die wheel whereby they are finally set with heat.