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:
Nov. 24, 1981
Filed:
Feb. 07, 1980
Applicant:
Inventor:
Siegfried Fuchs, Neuwied, DE;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B26D / ; B26D / ;
U.S. Cl.
CPC ...
83349 ; 83658 ; 83698 ;
Abstract
A rotary punch for the production of pre-shaped outer and inner cuts on mng webs or individual blanks of paper or the like, and more particularly, for the preparation of envelopes, flat bags or the like, includes rotating cutting tools whose cutting edges describe an envelope cylinder and at the instant of cutting impinge on a stationary abutment aligned at a slight inclination to the axis of rotation of the tools and so clamped that the operative edge of the abutment is everywhere at the same radial distance from the axis of rotation. The punch has a holder for the abutment, which holder has a bed molded from a curable liquid, and a cutting ledge of circular cross-section which is secured in the bed.