Patent EP0358002A2 successfully refreshed from Google Patents.
EP0358002A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Smoking articles utilizing electrical energy
Assignee: RJ Reynolds Tobacco Co
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Filing: 1989-08-15
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Granted: —
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Expires: 2009-08-15
Abstract
Abstract Smoking articles (10) employ an electrical resistance heating element (18) and an electrical power source (34) to provide a tobacco-flavored smoke or aerosol and other sensations of smoking. The smoking articles advantageously comprise a disposable portion (12) and a reusable controller (14). The disposable portion, which may be a cigarette, normally includes (i) an air permeable resistance heating element (18) having a surface area greater than 1 m<2>/g, which usually carries an aerosol forming material, and (ii) a charge or roll of tobacco (20). The reusable controller (14) normally includes a puff-actuated current actuation means (28), a time-based current regulating means (30) to control the temperature of the heating element, and a battery power supply (34).
Inventors
- 👤 Johnny Lee Brooks
- 👤 Donald Leroy Roberts
- 👤 Jerry Scott Simmons
- 👤 Carl Christopher Morrison
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 22:42
CPC Classifications
A; A24; A24F; A24F40/00; A24F40/40; A24F40/46; A24F40/10; A24B; A24B15/00; A24B15/18; A24B15/24; A24F40/50; A24F40/57
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
40 words
A cigarette for use with a source of electrical power comprising: a) an electrical resistance heating element having a surface area greater than 1 m²/g; b) aerosol forming substance carried by the heating element prior to use; and c) tobacco.
Claim 2
Dependent Claim
40 words
A cigarette for use with a source of electrical power comprising: a) an electrical resistance heating element having a surface area greater than 1 m²/g; b) aerosol forming substance carried by the heating element prior to use; and c) tobacco.
Claim 3
Dependent Claim
17 words
The cigarette of Claim 1, wherein the heating element has a surface area greater than 50 m²/g.
Claim 4
Dependent Claim
22 words
The cigarette of Claim 1 or 2, wherein the aerosol forming substance includes a tobacco extract and at least one polyhydric alcohol.
Claim 5
Dependent Claim
43 words
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 m²/g; and b) aerosol forming substance carried by the heating element prior to use.
Claim 6
Dependent Claim
43 words
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 m²/g; and b) aerosol forming substance carried by the heating element prior to use.
Claim 7
Dependent Claim
18 words
The disposable article of Claim 4, wherein the heating element has a surface area greater than 50 m²/g.
Claim 8
Dependent Claim
33 words
The disposable article of Claim 4, wherein the disposable article includes an air passageway at least partially therethrough, and the electrical resistance element comprises an air permeable heating element positioned in the passageway.
Claim 9
Dependent Claim
22 words
The disposable article of Claim 6, wherein the heating element is positioned substantially perpendicularly to the longitudinal axis of the air passageway.
Claim 10
Dependent Claim
20 words
The disposable article of Claim 4, including means for connecting the heating element to an external source of electrical power.
Claim 11
Dependent Claim
30 words
The disposable article of Claim 4, including an air outlet for delivering aerosol to the user and a charge of tobacco located between the heating element and the air outlet.
Claim 12
Dependent Claim
15 words
The disposable article of Claim 4, wherein the aerosol forming substance includes a tobacco extract.
Claim 13
Dependent Claim
45 words
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.
Claim 14
Dependent Claim
45 words
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.
Claim 15
Dependent Claim
20 words
The disposable article of Claim 11, wherein the aerosol forming substance is carried by the heating element prior to use.
Claim 16
Dependent Claim
15 words
The disposable article of Claim 11, wherein the aerosol forming substance comprises a tobacco extract.
Claim 17
Dependent Claim
57 words
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 m²/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.
Claim 18
Dependent Claim
57 words
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 m²/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.
Claim 19
Dependent Claim
19 words
The smoking article of Claim 14, further including means for regulating current flow through the heating element during draw.
Claim 20
Dependent Claim
15 words
The smoking article of Claim 14 or 15, further comprising a source of electrical power.
Claim 21
Dependent Claim
20 words
The smoking article of Claim 14 or 15, wherein the heating element has a surface area greater than 50 m²/g.
Claim 22
Dependent Claim
23 words
The smoking article of Claim 14 or 15, wherein the aerosol forming substance includes a tobacco extract and at least one polyhydric alcohol.
Claim 23
Dependent Claim
18 words
The smoking article of Claim 15, wherein the means for regulating current flow during draw comprises a timer.
Claim 24
Dependent Claim
31 words
The smoking article of Claim 15, further comprising means for limiting the temperature of the heating element when a puff occurs before the heating element has cooled after a prior puff.
Claim 25
Dependent Claim
23 words
The smoking article of Claim 15, wherein the puff actuated control means comprises means for sensing changes in air pressure within the article.
Claim 26
Dependent Claim
65 words
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) means for permitting unrestricted current flow through the heating element for an initial time period upon current actuation and means for subsequently regulating current flow until current deactuation.
Claim 27
Dependent Claim
65 words
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) means for permitting unrestricted current flow through the heating element for an initial time period upon current actuation and means for subsequently regulating current flow until current deactuation.
Claim 28
Dependent Claim
20 words
The smoking article of Claim 22, wherein the aerosol forming substance is carried by the heating element prior to use.
Claim 29
Dependent Claim
18 words
The smoking article of Claim 23, wherein the heating element has a surface area greater than 1 m²/g.
Claim 30
Dependent Claim
13 words
The smoking article of Claim 22, further comprising a source of electrical power.
Claim 31
Dependent Claim
17 words
The smoking article of Claim 22 or 23, wherein the aerosol forming substance includes a tobacco extract.
Claim 32
Dependent Claim
59 words
A smoking 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; and d) puff actuated control means for permitting current flow through the heating element during draw by the user.
Claim 33
Dependent Claim
59 words
A smoking 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; and d) puff actuated control means for permitting current flow through the heating element during draw by the user.
Claim 34
Dependent Claim
17 words
The smoking article of Claim 27, wherein the aerosol forming substance is carried by the heating element.
Claim 35
Dependent Claim
21 words
The smoking article of Claim 27 or 28, further comprising means for regulating current flow through the heating element during draw.
Claim 36
Dependent Claim
76 words
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.
Claim 37
Dependent Claim
76 words
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.
Claim 38
Dependent Claim
17 words
The controller of Claim 30, wherein the means for regulating current flow during draw comprises a timer.
Claim 39
Dependent Claim
53 words
The controller of Claim 31, wherein the means for regulating current flow during draw includes (i) means for enabling the uninterrupted passage of current through the heating element for an initial time period, and (ii) means for controlling the average current which passes through the heating element upon passage of the initial time.
Claim 40
Dependent Claim
30 words
The controller of Claim 31, further comprising means for limiting the temperature of the heating element when a puff occurs before the heating element has cooled after a prior puff.
Claim 41
Dependent Claim
23 words
The controller of Claim 31, wherein the puff actuated control means comprises means for sensing changes in air pressure within the disposable article.
Claim 42
Dependent Claim
17 words
The controller of Claim 31, wherein the puff actuated control means includes an air pressure differential switch.
Claim 43
Dependent Claim
24 words
The controller of Claim 31, wherein the means for electrically connecting the controller to a power source includes means for connection to a battery.
Claim 44
Dependent Claim
82 words
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 resistance heating element; b) means for electrically connecting the controller to an electrical power source; c) current actuation and deactuation means; and d) means for permitting unrestricted current flow through the heating element for an initial time period upon current actuation, and means for subsequently regulating current flow until current deactuation.
Claim 45
Dependent Claim
82 words
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 resistance heating element; b) means for electrically connecting the controller to an electrical power source; c) current actuation and deactuation means; and d) means for permitting unrestricted current flow through the heating element for an initial time period upon current actuation, and means for subsequently regulating current flow until current deactuation.
Claim 46
Dependent Claim
31 words
The controller of Claim 37, wherein the current actuation and deactuation means is a puff actuated control means for permitting current flow through the heating element during draw by the user.
Claim 47
Dependent Claim
42 words
The controller of Claim 37, wherein the means for permitting current flow for the initial time period and for subsequently regulating current flow until current deactivation includes means for controlling the temperature range to which the heating element is heated during draw.
Claim 48
Dependent Claim
59 words
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.
Claim 49
Dependent Claim
59 words
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.
References Cited (Backward Citations)
No citation records indexed.
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