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. 23, 1986
Filed:
Mar. 04, 1985
Applicant:
Inventors:
Shunji Ohmori, Mitsubishi, JP;
Hiroyuki Takenaka, Mitsubishi, JP;
Akira Hozoji, Mitsubishi, JP;
Kazunori Kono, Mitsubishi, JP;
Kiyomitsu Yoshikawa, Mitsubishi, JP;
Seishi Kajihara, Mitsubishi, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23D / ;
U.S. Cl.
CPC ...
83342 ; 83341 ; 83672 ;
Abstract
A rotary drum shear including two drums rotating in the opposite direction to each other and each having a spiral knife on the periphery thereof so that material fed between the drums is cut by engagement of the knives brought by the rotation of the drums in which the knives are formed so that a distance from a rotational center of the drums to the engagement position of the knives is gradually reduced along an axis of the drums from a start point of the engagement of the knives.