Patent US4756318A successfully refreshed from Google Patents.
US4756318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoking article with tobacco jacket
Assignee: RJ Reynolds Tobacco Co
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Filing: 1985-10-28
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Granted: 1988-07-12
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Expires: 2005-10-28
Abstract
Abstract The present invention preferably relates to a smoking article which is capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream aerosol. Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element, a physically separate aerosol generating means including an aerosol forming substance, a physically separate tobacco jacket around at least the aerosol generating means, and a relatively long mouth end piece. The articles of the present invention provide the user with taste, feel and aroma, associated with the smoking of conventional cigarettes. Tobacco in many embodiments of this invention is burned to provide a sidestream aroma and smoke. In other embodiments, tobacco does not burn, but still provides tobacco flavors to the aerosol delivered to the user.
Inventors
- 👤 Jack F. Clearman
- 👤 Thomas L. Gentry
- 👤 Gary R. Shelar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:52
CPC Classifications
A; A24; A24D; A24D1/00; A24D1/22
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
53 words
A cigarette-type smoking article comprising: (a) a carbonaceous fuel element; (b) a physically separate aerosol generating means including an aerosol forming material located between the fuel element and the mouth end of the article; and (c) a physically separate tobacco containing mass which circumscribes at least a portion of the aerosol generating means.
Claim 2
Dependent Claim
53 words
A cigarette-type smoking article comprising: (a) a carbonaceous fuel element; (b) a physically separate aerosol generating means including an aerosol forming material located between the fuel element and the mouth end of the article; and (c) a physically separate tobacco containing mass which circumscribes at least a portion of the aerosol generating means.
Claim 3
Dependent Claim
21 words
The article of claim 1, wherein the fuel element and the aerosol generating means are in a conductive heat exchange relationship.
Claim 4
Dependent Claim
22 words
The article of claim 2, further comprising a heat conducting member which contacts both the fuel element and the aerosol generating means.
Claim 5
Dependent Claim
22 words
The article of claim 1, further comprising a heat conductive container which encloses at least a portion of the aerosol forming material.
Claim 6
Dependent Claim
30 words
The article of claim 4, wherein the container is provided with at least one passageway which permits gases and the aerosol forming material to pass into the tobacco containing mass.
Claim 7
Dependent Claim
20 words
The article of claim 1, further comprising an insulating member which circumscribes at least a portion of the fuel element.
Claim 8
Dependent Claim
17 words
The article of claim 6, wherein the insulating member is resilient and at least 0.5 mm thick.
Claim 9
Dependent Claim
20 words
The article of claim 1, further comprising a mouthend piece having an aerosol delivery passage and a resilient outer member.
Claim 10
Dependent Claim
28 words
The article of claim 1, 2, 3, 4, 5, 6, 7, or 8, wherein the tobacco containing mass circumscribes substantially the entire length of the aerosol generating means.
Claim 11
Dependent Claim
25 words
The article of claim 1, 2, 3, 4, 5, 6, 7, or 8, wherein the fuel element is less than about 30 mm in length.
Claim 12
Dependent Claim
15 words
The article of claim 10, wherein the fuel element has a plurality of longitudinal passageways.
Claim 13
Dependent Claim
25 words
The article of claim 1, 2, 3, 4, 5, 6, 7, or 8, wherein the fuel element is less than about 20 mm in length.
Claim 14
Dependent Claim
15 words
The article of claim 12, wherein the fuel element has a plurality of longitudinal passageways.
Claim 15
Dependent Claim
60 words
A cigarette-type smoking article comprising: (a) a combustible fuel element less than about 30 mm in length; (b) a physically separate aerosol generating means including an aerosol formong material located between the fuel element and the mouth end of the article; and (c) a physically separate tobacco containing mass which circumscribes at least a portion of the aerosol generating means.
Claim 16
Dependent Claim
60 words
A cigarette-type smoking article comprising: (a) a combustible fuel element less than about 30 mm in length; (b) a physically separate aerosol generating means including an aerosol formong material located between the fuel element and the mouth end of the article; and (c) a physically separate tobacco containing mass which circumscribes at least a portion of the aerosol generating means.
Claim 17
Dependent Claim
21 words
The article of claim 14, wherein the fuel element and the aerosol generating means are in a conductive heat exchange relationship.
Claim 18
Dependent Claim
22 words
The article of claim 15, further comprising a heat conducting member which contacts both the fuel element and the aerosol generating means.
Claim 19
Dependent Claim
22 words
The article of claim 14, further comprising a heat conductive container which encloses at least a portion of the aerosol forming material.
Claim 20
Dependent Claim
30 words
The article of claim 17, wherein the container is provided with at least one passageway which permits gases and the aerosol forming material to pass into the tobacco containing mass.
Claim 21
Dependent Claim
20 words
The article of claim 14, further comprising an insulating member which circumscribes at least a portion of the fuel element.
Claim 22
Dependent Claim
17 words
The article of claim 19, wherein the insulating member is resilient and at least 0.5 mm thick.
Claim 23
Dependent Claim
20 words
The article of claim 14, further comprising a mouthend piece having an aerosol delivery passage and a resilient outer member.
Claim 24
Dependent Claim
11 words
The article of claim 14, wherein the fuel element contains carbon.
Claim 25
Dependent Claim
25 words
The article of claim 14, 15, 16, 17, 18, 19, 20, or 21, wherein the fuel element is less than about 30 mm in length.
Claim 26
Dependent Claim
11 words
The article of claim 23, wherein the fuel element contains carbon.
Claim 27
Dependent Claim
15 words
The article of claim 23, whereln the fuel element has a plurality of longitudinal passageways.
Claim 28
Dependent Claim
25 words
The article of claim 14, 15, 16, 17, 18, 19, 20, or 21, wherein the fuel element is less than about 20 mm in length.
Claim 29
Dependent Claim
11 words
The article of claim 26, wherein the fuel element contains carbon.
Claim 30
Dependent Claim
15 words
The article of claim 26, wherein the fuel element has a plurality of longitudinal passageways.
Claim 31
Dependent Claim
28 words
The article of claim 14, 15, 16, 17, 18, 19, 20, or 21, wherein the tobacco containing mass circumscribes substantially the entire length of the aerosol generating means.
Claim 32
Dependent Claim
32 words
The article of claim 1, 3, 5, 14, 16, or 18, which delivers at least about 0.6 mg of wet total particulate matter in the first three puffs under FTC smoking conditions.
Claim 33
Dependent Claim
37 words
The article of claim 1, 3, 5, 14, 16, or 18, which delivers an average of at least about 0.8 mg of wet total particulate matter per puff for at least six puffs under FTC smoking conditions.
Claim 34
Dependent Claim
35 words
The article of claim 1, 5, 14, or 18, in which tobacco circumscribes the fuel element and the aerosol generating means and wherein the tobacco around the aerosol generating means does not burn during use.
Claim 35
Dependent Claim
23 words
The article of claim 1, or 5, having no mutagenic activity in the wet total particulate matter, as measured by the Ames test.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |