Patent US4434804A successfully refreshed from Google Patents.
US4434804A
Expired / Lapsed
US
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Smoking article
Assignee: Anglemaster Ltd
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Filing: 1981-06-09
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Granted: 1984-03-06
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Expires: 2001-06-09
Abstract
Abstract Smoking articles, e.g. cigarettes, are disclosed into the fuel rod of which particulate smoke-modifying agent has been introduced in such a manner that the concentration of the agent is greater at one or each end of the fuel rod than that at the middle region of the fuel rod. The result of this variation in concentration of the smoke-modifying agent is that the amount of agent released into the smoke varies as the article is smoked. Various forms of smoking article are disclosed together with methods of production.
Inventors
- 👤 Anthony J. N. Bolt
- 👤 Brian C. Chard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:27
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24D; A24D1/00; A24D1/002; A24D1/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
A method of introducing a quantity of solid particulate flavor material having a particle size in the range 3-25 micron into the tobacco rod of a ready-made cigarette or cigar, the method comprising entraining the particulate material in a stream of air to form a cloud of the particulate material, and causing the cloud of particles to enter and pass along the tobacco rod from the light-up end to the mouth end so as to provide a concentration of particulate material in the tobacco rod that is greater at either end of said rod than between its ends.
Claim 2
Independent Claim
98 words
A method of introducing a quantity of solid particulate flavor material having a particle size in the range 3-25 micron into the tobacco rod of a ready-made cigarette or cigar, the method comprising entraining the particulate material in a stream of air to form a cloud of the particulate material, and causing the cloud of particles to enter and pass along the tobacco rod from the light-up end to the mouth end so as to provide a concentration of particulate material in the tobacco rod that is greater at either end of said rod than between its ends.
Claim 3
Dependent Claim
17 words
A method as claimed in claim 1 wherein the particulate material is in micro-encapsulated spray dried form.
Claim 4
Dependent Claim
32 words
A method as claimed in claim 1 wherein the concentration of the particulate material in the tobacco rod is about 1 mg of microcapsules for each 65 mg of the fuel rod.
Claim 5
Dependent Claim
25 words
A method as claimed in claim 1 wherein the cloud of particles is caused to pass through the fuel rod in pulses of short duration.
Claim 6
Dependent Claim
23 words
A method as claimed in claim 1 wherein the air is drawn through the fuel rod from the end opposite the light-up end.
Claim 7
Dependent Claim
20 words
A method as claimed in claim 1 wherein the air is blown through the fuel rod from the light-up end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |