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:
Jun. 03, 2008
Filed:
Dec. 22, 2004
John Dawson, Richmond, VA (US);
Loren Duvoket, Goochland, VA (US);
Travis Garthaffner, Chesterfield, VA (US);
Rashard Thurman, Richmond, VA (US);
Charles Gary Atwell, Richmond, VA (US);
John Dawson, Richmond, VA (US);
Loren Duvoket, Goochland, VA (US);
Travis Garthaffner, Chesterfield, VA (US);
Rashard Thurman, Richmond, VA (US);
Charles Gary Atwell, Richmond, VA (US);
Philip Morris USA Inc., Richmond, VA (US);
Abstract
Machinery and process for continuously making a compound filter rod include a tow transport for continuously delivering an expanded fiber tow while compressing the tow as it travels in a downstream direction. At least one rotating pocket wheel has a plurality of spaced apart pockets therein, and a filter media supply delivers media to the pockets. A vacuum source applied to the pockets of the rotating wheel operates to draw filter media into the pockets from the filter media supply. An air transport tube in alignment with the pockets of the rotating pocket wheel discharges the filter media from the pockets as they rotate past the transport tube. The discharged filter media is delivered to the tow transport into interior portions of the fiber tow. Subsequently, the rod is wrapped with filter paper.