R.J. Reynolds Tobacco issued US patent for 'method for insertion of material into cigarette filters'

Nevin Barich

ALEXANDRIA, Virginia , January 21, 2014 (U.S. Official News) – United States Patent and Trademark Office has granted patent no. 8,627,825, on January 14, 2014, to R.J. Reynolds Tobacco Company (North Carolina), titled as "Method for insertion of material into cigarette filters"

Inventors: Nelson; John Larkin (Lewisville, NC), Barnes; Vernon Brent (Advance, NC), Read, Jr.; Louis John (Winston-Salem, NC), Carter; Brent Walker (High Point, NC)

Assignee: R.J. Reynolds Tobacco Company (Winston-Salem, NC)

According to the abstract released by the U.S. Patent & Trademark Office: "Filter rods for use in the manufacture of cigarette filter elements are provided, with each rod having a longitudinal axis and incorporating a generally longitudinally extending filter material and a generally longitudinally extending strand within that filter material. A filter making unit receives a continuous supply of a filter material, and forms the filter material into a gathered composite having a continuous cylindrical shape. A continuous supply of a strand (e.g., colored thread) is provided and is introduced into the filter material gathered composite in the tongue of the filter making unit. The filter material and continuous strand positioned therein are formed into a continuous rod having the strand material laterally positioned within that rod, and the continuous rod is subdivided at pre-determined longitudinal intervals to provide a plurality of rod portions."

The patent was filed on April 15, 2010 Application no. 12/761,052

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