Smoking articles utilizing electrical energy
AssigneeR. J. Reynolds Tobacco Company
InventorsJohnny L. Brooks, Donald L. Roberts, Jerry S. Simmons
Life of this patent
Estimating the term…
Abstract
Smoking articles employ an electrical resistance heating element and an electrical power source to provide a tobacco-flavored smoke or aerosol and other sensations of smoking. The smoking articles advantageously comprise a disposable portion and a reusable controller. The disposable portion, which may be a cigarette, normally includes (i) an air permeable resistance heating element having a surface area greater than 1 m.sup.2 /g, which usually carries an aerosol forming material, and (ii) a charge or roll of tobacco. The reusable controller normally includes a puff-actuated current actuation means, a time-based current regulating means to control the temperature of the heating element, and a battery power supply.
Claims202
A cigarette for use with a source of electrical power comprising:
- (a) an electrical resistance heating element having a surface area greater than 1 m.sup.2 /g;
- (b) aerosol forming substance carried by the heating element prior to use;
- and
- (c) tobacco.
A disposable portion of a smoking article for use with a source of electrical power comprising:
- (a) an electrical resistance heating element having a surface area greater than 1 m.sup.2 g;
- and
- (b) aerosol forming substance carried by the heating element prior to use.
A disposable portion of a smoking article for use with a source of electrical power comprising:
- (a) an air passageway at least partially through the disposable portion;
- (b) an air permeable electrical heating element located in the air passageway;
- and
- (c) an aerosol forming substance.
A smoking article for use with a source of electrical power comprising:
- (a) an electrical resistance heating element having a surface area greater than 1 m.sup.2 g;
- (b) aerosol forming substance carried by the heating element prior to use;
- and
- (c) puff actuated control means for permitting current flow through the heating element during draw by the user.
A smoking article for use with a source of electrical power comprising:
- (a) an electrical resistance heating element;
- (b) aerosol forming substance;
- (c) switch means for actuating and deactuating current flow through the heating element;
- and
- (d) time based means for (i) permitting unrestricted current flow through the heating element for an initial predetermined time period upon current actuation, and (ii) for subsequently regulating current flow until current deactuation.
A smoking delivery article for use with a source of electrical power comprising:
- ((a) an air passageway at least partially through the article;
- ((b) an air permeable electrical resistance heating element located in the air passageway;
- ((c) an aerosol forming substance;
- (d) puff actuated control means for permitting current flow through the heating element during draw by the user;
- and
- (e) a mouth end.
A controller for use with a disposable article having an aerosol forming substance and an electrical heating element, the controller comprising:
- (a) means for electrically connecting the controller to the electrical heating element;
- (b) means for electrically connecting the controller to an electrical power source;
- (c) puff actuated control means for permitting current flow through the heating element during draw by the user;
- and
- (d) means for regulating current flow through the heating element during draw.
A controller for use with a disposable article having an aerosol forming substance and an electrical heating element for thermally generating an aerosol from the aerosol forming substance, the controller comprising:
- ((a) means for electrically connecting the controller to the electrical resistance heating element;
- ((b) means for electrically connecting the controller to an electrical power source;
- ((c) current actuation and deactuation means;
- and
- (d) time based means for (i) permitting unrestricted current flow through the heating element for an initial predetermined time period upon current actuation, and (ii) for subsequently regulating current flow until current deactuation.
A current control circuit for an article having an aerosol forming substance and a heat generating electrical resistance element for thermally generating an aerosol from the aerosol forming substance, the circuit comprising (i) means for permitting current flow through the resistance element for an initial time period, and (ii) means for subsequently regulating current flow through the resistance element.
Dependencies are inferred from the claim text.