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. 28, 2023
Filed:
Apr. 13, 2018
Philip Morris Products S.a., Neuchatel, CH;
Stefano Zappoli, Bologna, IT;
Philip Morris Products S.A., Neuchatel, CH;
Abstract
The invention relates to an apparatus and a method of manufacturing a crimped sheet () of material for an aerosol-generating article. The method comprises the step of feeding a substantially continuous sheet of material to a set of crimping rollers () in a transport direction (), the set of crimping rollers comprising a first roller () having a first surface () and having a first plurality of ridges () across at least a portion of its width and a second roller having a second surface, the second surface () being formed at least for a portion thereof in a material having an hardness lower than the hardness of a material forming the first surface. Further, the method comprises crimping the substantially continuous sheet of material to form the crimped sheet by feeding the substantially continuous sheet between the first and second rollers in the transport direction of the sheet such that the corrugations of the first roller apply a plurality crimp corrugations to the substantially continuous sheet.