Patent US3994672A successfully refreshed from Google Patents.
US3994672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Candle light type liquid fuel burning table lamp
Assignee: Individual
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Filing: 1975-12-12
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Granted: 1976-11-30
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Expires: 1995-12-12
Abstract
Abstract A fuel container having an upper cylindrical neck in which is inserted a stopper. A tube projects through the stopper through which a wick projects providing an upper loop with free ends projecting into fuel in the container. The upper end of the tube is crimped holding the upper looped end at a projected point above the end of the rod. The stopper is made of a material that when contacting a suitable fuel, such as a hydrocarbon or the like, will expand inwardly and outwardly sealing the space between the stopper and the outer cylindrical sides of the upper neck of the container and inwardly against the tube. A cap is provided for fitting against the upper end of the stopper sealing the wick from the atmosphere.
Inventors
- 👤 David Michael Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:28
CPC Classifications
F; F23; F23D; F23D3/00; F23D3/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A candle light type liquid fuel burning table lamp comprising: a container for holding liquid fuel, said container having a cylindrical upper neck, a cylindrical stopper in said cylindrical neck, said stopper having a centered hole therethrough, a tube fixed through said hole, looped wick means projecting from said container through said tube, the upper end of said tube being above the upper surface of the stopper and being crimped at its upper end between two strands of looped wick projecting from the end of the tube, separating said strands and forming an outwardly projecting end wick loop, a fire impervious washer fitting around said tube and resting on and covering the upper surface of said stopper, and said stopper being of a material that is expandable in contact with the fuel to expand outwardly against the cylindrical neck and inwardly against said tube for sealing against liquid fuel passage.
Claim 2
Dependent Claim
150 words
A candle light type liquid fuel burning table lamp comprising: a container for holding liquid fuel, said container having a cylindrical upper neck, a cylindrical stopper in said cylindrical neck, said stopper having a centered hole therethrough, a tube fixed through said hole, looped wick means projecting from said container through said tube, the upper end of said tube being above the upper surface of the stopper and being crimped at its upper end between two strands of looped wick projecting from the end of the tube, separating said strands and forming an outwardly projecting end wick loop, a fire impervious washer fitting around said tube and resting on and covering the upper surface of said stopper, and said stopper being of a material that is expandable in contact with the fuel to expand outwardly against the cylindrical neck and inwardly against said tube for sealing against liquid fuel passage.
Claim 3
Dependent Claim
38 words
A candle light type liquid fuel burning table lamp as claimed in claim 1 including: a cap for fitting over said washer, stopper and upper cylindrical neck and forming a seal around the outer surface of said stopper.
Claim 4
Dependent Claim
43 words
A candle light type liquid fuel burning table lamp as claimed in claim 1 and including: a cylindrical lamp enclosure that is at least partially translucent to light, and said container being cylindrical and being held in the lower portion of said enclosure.
Claim 5
Dependent Claim
37 words
A candle light type liquid fuel burning table lamp as claimed in claim 1 and including: a cylindrical lamp enclosure that is at least partially translucent to light, said container comprising the lower portion of said enclosure.
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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |