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:
Jan. 03, 1989
Filed:
Apr. 06, 1987
Applicant:
Inventor:
Martin Blumle, Horhausen, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B31B / ;
U.S. Cl.
CPC ...
493403 ; 493241 ;
Abstract
There is provided apparatus for grooving or producing partial cuts extend parallel to the direction of transport in paper webs, blanks, cardboard boxes and like workpieces, particularly in the manufacture of envelopes with at least one rotatably mounted grooving disc and an opposing tool in the shape of a roller. Prior to the grooving operation, the workpiece is bent about an axis transverse to the direction of transport.