Method for dispersing powder materials in a cigarette rod
AssigneePhilip Morris USA Inc.
InventorWei-Jun Zhang
Life of this patent
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Abstract
A system and method is provided for dispersing fine catalyst powders having nanoscale or microscale particles throughout the tobacco rod portion of a cigarette. A source of vacuum is connected to the filter end of a cigarette through a tube that is sealingly engaged with the filter end of the cigarette. The opposite cut filler end of the tobacco rod portion of the cigarette is placed in the proximity of a predetermined amount of the catalyst powder contained in a container. The vacuum is applied to the cigarette filter in an amount and for a period of time that is a function of the size and quantity of the particles to be drawn into and dispersed throughout the tobacco rod portion of the cigarette.
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A system for dispersing catalyst particles throughout the tobacco rod portion of a machine-made cigarette having a filter at one end and a tobacco rod portion comprising tobacco cut filler, the tobacco rod portion being joined to the filter with tipping paper, the system comprising:
- a vacuum tube connected to a source of vacuum and adapted to form a fitted connection with the filter end of the cigarette;
- and a container, receptacle or dispenser for containing a predetermined quantity of the catalyst particles and positioning the particles in proximity to or in fluid communication with the cut filler end of the cigarette at the end of the tobacco rod portion of the cigarette opposite from the filter end of the cigarette.
Dependencies are inferred from the claim text.