Cigarette compression device

This application claims the benefit of U.S. Provisional Patent Application 60/991,665, filed Nov. 30, 2007, the disclosure of which is expressly incorporated by reference.

The invention relates to cigarettes and more specifically a cigarette compression device.

The term cigarette includes a small quantity of cut tobacco extending longitudinally, bounded on its sides by paper or other combustible casing and a cross-section usually of cylindrical shape, although the shape may be oval or elliptical.

During the combustion of hydrocarbons of the type found in tobacco, two types of reaction take place, namely pyrolytic reactions and oxidation-reduction reactions. The pyrolytic reaction includes distillation, dehydrogenation, cracking, rearrangement, and condensation. The products of the pyrolytic reaction occurring in a given substance and their characteristics may be determined mainly, and possibly solely, by combustion temperature and the time at such burn temperature.

The oxidation-reduction reaction includes reaction of the hydrocarbons with oxygen in an exothermic reaction. The extent and products of the oxidation-reduction reaction may depend mainly, and possibly solely, on the combustion temperature, the degree of oxidation, and the rate of gas flow through the combustion zone.

The quantity and type of the product of the pyrolytic and oxidation reduction reactions may be affected substantially, if not solely, by the burn temperature, the time at that burn temperature, and the rate of gas flow from the combustion zone. An increased gas flow may have an enhanced effect upon the oxidation reactions since the latter are exothermic.

A cigarette compression device for use with a cigarette including tobacco, including a compressor defining a cavity; and a mandrel adjustably attached to the compressor, at least a portion of the mandrel located within the cavity, the mandrel configured to compress the tobacco, the mandrel configured to provide a passageway within the tobacco, the passageway including either lower density tobacco or a void of tobacco, the mandrel configured to adjust along a longitudinal axis of the cigarette.

A method of slowing the burn rate or lowering the burn temperature of a cigarette including tobacco, including the steps of providing a compressor including a mandrel configured to compress tobacco, the mandrel configured to adjust in length in relation to the compressor, compressing tobacco into more densely packed tobacco by use of the mandrel, and defining a passageway within the tobacco, the passageway including either a lower density of tobacco or a void of tobacco, the passageway defined within the more densely packed tobacco.

BRIEF DESCRIPTION OF THE DRAWINGS

The above-mentioned and other features of this invention, and the manner of attaining them, will become more apparent and the invention itself will be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a cross-sectional view of the cigarette compression device in use with a cigarette as one embodiment of the present invention.

FIG. 2 is a cross-sectional view of a portion of the cigarette compression device as shown in FIG. 1.

FIG. 3 is a cross-sectional view of the portion of the cigarette compression device as shown in FIG. 2.

FIG. 4 is a cross-sectional view of a portion of the cigarette compression device as shown in FIG. 1.

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Industry Class:
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