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.

Date of Patent:
Feb. 11, 1992

Filed:

Jul. 31, 1990
Applicant:
Inventor:

Atsuo Yamazaki, Tamagawa Chino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21D / ;
U.S. Cl.
CPC ...
72302 ; 72392 ; 72420 ; 72482 ; 72413 ;
Abstract

A lever of a metallic binding band is gripped by holding pieces. A pair of forming pieces are located in the loop section of the binding section of the metallic binding band. Forming pieces having outer circumferential arc faces are offset from each other laterally so that the binding section is expanded by the forming pieces into true circle.


Find Patent Forward Citations

Loading…