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:
Oct. 19, 2021
Filed:
Mar. 19, 2018
Philip Morris Products S.a., Neuchâtel, CH;
Gianni Caprini, Bologna, IT;
Philip Morris Products S.A., Neuchâtel, CH;
Abstract
An apparatus for forming filter rods for aerosol-generating articles is provided, including a first source and a second source, the first source being configured to supply filter material in a form of a first tow, and the second source being configured to supply filter material in a form of a second tow; a single driven delivery roller configured to advance the first tow and the second tow; and an extrusion tool configured to process the first tow and the second tow, the delivery roller being arranged such that the first and the second tows are advanced from the first and the second sources toward the extrusion tool only by the delivery roller, and the extrusion tool is further configured to process several sources of filter material simultaneously to create one filter rod. A method for forming filter rods for aerosol-generating articles is also provided.