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:
Sep. 12, 1978
Filed:
Apr. 26, 1977
Applicant:
Inventors:
Isamu Yoshizawa, Yokohama, JP;
Hiroyuki Okubo, Yokohama, JP;
Hiroshi Isozaki, Zushi, JP;
Tsutomu Hara, Yokohama, JP;
Bunpei Masuda, Yokohama, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B23D / ;
U.S. Cl.
CPC ...
83344 ; 83337 ; 83345 ;
Abstract
Both of the upper and lower blades carried by the upper and lower drums, respectively, or either of the upper or lower blade is so arranged as to partially describe a non-circular locus having the vertically extended major axis when complete shearing is effected.