Patent US4027679A successfully refreshed from Google Patents.
US4027679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco product
Assignee: Individual
•
Filing: 1976-08-03
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Granted: 1977-06-07
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Expires: 1996-08-03
Abstract
Abstract This invention provides a smoke vector for a cigarette, and the like, for modifying or altering the mainstream smoke at or near the combustion zone or burning zone. The smoke vector comprises a thin walled elongated, impervious tube-like member or vector which is hollow and empty. The vector extends longitudinally through the cigarette and terminates with an impervious mouth end. During an indrawn breath by the smoker, the products of the combustion of tobacco in systemic heat is below the formation temperatures of temperature dependant hazardous chemicals.
Inventors
- 👤 Joseph Kaswan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:52
CPC Classifications
A; A24; A24D; A24D1/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
137 words
A cigarette which comprises a. a thin walled, hollow smoke vector, of ceramic or metal construction, extending longitudinally substantially the length of and disposed concentrically therewith so as to be surrounded by tobacco, b. said vector comprising a substantially impervious hollow and empty cylindrical member having a substantially impervious closed mouth end and an open front end, c. said vector establishing the heat removal sequence during a draw by collecting draw heat at the point of convergence inside the vector, creating the highest possible temperature differential between the open end of the vector and free air outside the vector, and removing heat by high velocity convection currents, d. whereby the smoker draws in, during a puff, smoke comprising the products of the combustion of tobacco in systemic heat, below the formation temperatures of temperature dependant hazardous chemicals.
Claim 2
Dependent Claim
137 words
A cigarette which comprises a. a thin walled, hollow smoke vector, of ceramic or metal construction, extending longitudinally substantially the length of and disposed concentrically therewith so as to be surrounded by tobacco, b. said vector comprising a substantially impervious hollow and empty cylindrical member having a substantially impervious closed mouth end and an open front end, c. said vector establishing the heat removal sequence during a draw by collecting draw heat at the point of convergence inside the vector, creating the highest possible temperature differential between the open end of the vector and free air outside the vector, and removing heat by high velocity convection currents, d. whereby the smoker draws in, during a puff, smoke comprising the products of the combustion of tobacco in systemic heat, below the formation temperatures of temperature dependant hazardous chemicals.
Claim 3
Dependent Claim
13 words
A cigarette according to claim 1 wherein said vector is a refractory oxide.
Claim 4
Dependent Claim
14 words
A cigarette according to claim 1 wherein said vector is made of fused quartz.
Claim 5
Dependent Claim
14 words
A cigarette according to claim 1 wherein said vector is made of stainless steel.
Claim 6
Dependent Claim
21 words
A cigarette according to claim 1 wherein said vector comprises a plurality of segments which may be removed as smoking progresses.
References Cited (Backward Citations)
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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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |