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:
Sep. 22, 2020
Filed:
Nov. 25, 2016
Philip Morris Products S.a., Neuchatel, CH;
Gianni Caprini, Zola Predosa, IT;
Pietro Davide La Porta, Bologna, IT;
Philip Morris Products S.A., Neuchatel, CH;
Abstract
The present invention relates to a filter manufacturing apparatus comprising: • a feed path adapted to continuously feed a filter material along a longitudinal transport direction; • a forming device connected to a terminating end of the feed path and adapted to form the filter material into a continuous filter body and to deliver the formed continuous filter body, the forming device including: • a tubular element () adapted to allow the filter material to pass therethrough to form the filter tow material into the continuous filter body; and • a steam generator () adapted to produce steam, the steam generator being in fluid communication with the tubular element to supply steam to the filter material; • a drain channel () in fluid communication with the tubular element adapted to drain fluid from the tubular element; • a valve adapted to open and close the drain channel so as to allow or block discharge of fluid from the tubular element.