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:
Feb. 23, 1993
Filed:
May. 31, 1991
Applicant:
Inventor:
Myron Ullman, Canfield, OH (US);
Assignee:
Boardman Molded Products, Inc., Youngstown, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
493440 ; 493439 ; 493447 ; 493456 ;
Abstract
An apparatus for forming thin plastic, film, aluminum, paper, glassine and other similar material into a double folded 'z' shape as shown and described. In this apparatus, a first ramp folds the material initially in one direction, and a continuously variable die forms the second bend of a 'z' shape of the material edge. In order to maintain accuracy, an initial crease is placed at the location of the first fold. The material is drawn through the die by any suitable roller or drawing means which can pull the material through the die. There are no rollers within the edge forming die.