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:
May. 16, 1978
Filed:
Feb. 02, 1977
Johan Eric Westberg, Lidingo, SW;
AGA Aktiebolag, Lidingo, SW;
Abstract
An arrangement for perforation a stripe of a ductile material such as plastics or a ductile metal such as aluminum or copper and for forming a lattice of the stripe comprises a preferably rotating cutting roll, which cooperates with a holding-up tool. The cutting roll has at least one axially aligned row of cutting plates. Each cutting plate has a cutting edge and a partly cylindrical part, which forms a part of the cylindrical mantle surface of the cutting roll. In cooperation with the holding-up tool the cutting edges of the cutting plates make a row of slots in the stripe, whereupon the walls of the slots are extended in the longitudinal direction of the stripe, while the partly cylindrical parts of the cutting plates hold other parts of the stripe against the holding-up tool so as to form a lattice without changing the width of the stripe.