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.

Date of Patent:
Jan. 24, 2023

Filed:

Dec. 28, 2016
Applicant:

Philip Morris Products S.a., Neuchatel, CH;

Inventor:

Gianni Caprini, Zola Predosa, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24D 3/02 (2006.01); B31D 5/00 (2017.01);
U.S. Cl.
CPC ...
A24D 3/0233 (2013.01); A24D 3/0295 (2013.01); B31D 5/0082 (2013.01);
Abstract

The invention relates to a filter manufacturing apparatus including: —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 rod-shaped continuous filter body and 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 material into the continuous filter body; a heat source adapted to heat the filter material passing in the tubular element; —a diameter measuring device positioned at the outlet of the forming device and adapted to measure a diameter of the continuous filter body.


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