Tobacco smoke filter production
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United States of America Patent
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Dec 27, 2011
Grant Date -
Aug 14, 2008
app pub date -
Dec 5, 2005
filing date -
Dec 3, 2004
priority date (Note) -
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Abstract
A method and apparatus for tobacco smoke filter production wherein a train of tobacco smoke filtering material, while being continuously advanced longitudinally, is gathered towards rod shape and then shaped to and secured in rod form, and wherein there is discontinuous pneumatic injection of particulate additive through an injector conduit laterally into the advancing gathering material to form separate additive pockets embedded in and spaced along the continuously produced rod.
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