Patent US4286571A successfully refreshed from Google Patents.
US4286571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kenshin heating instrument
Assignee: Individual
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Filing: 1980-03-10
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Granted: 1981-09-01
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Expires: 2000-03-10
Abstract
Abstract A hand-held, non-electrically powered heating instrument includes a generally cylindrical, hollow, elongated, metallic first element having means for mounting a charge of burnable fuel therein and also having a plurality of air vents at one end thereof and an air inlet opening at the opposite end thereof. The instrument also includes a generally cylindrical, hollow, elongated, metallic second element having a substantially closed end and an opposite open end and a plurality of air vents formed substantially adjacent to the closed end thereof. The second element is configured and dimensioned to permit the first element to be releasably and telescopically received therein through the open end thereof, so that the air vents of both elements may communicate with one another. The first and second elements are slidable relative to one another in both a rotatably and longitudinal manner so as to permit regulation of the amount of air flowing through the air inlet opening and through the vents.
Inventors
- 👤 David P. J. Hung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:49
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F7/03; A61F7/032; A61F7/034; A61B; A61B18/00; A61B18/04; A61B18/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
A hand-held, non-electrically powered heating instrument, comprising: a generally cylindrical, hollow, elongated, metallic first element having means for mounting a charge of burnable fuel therein and also having a plurality of air vents at one end thereof and an air inlet opening at the opposite end thereof; a generally cylindrical, hollow, elongated, metallic second element having a substantially closed end and an opposite open end and a plurality of air vents formed substantially adjacent to said closed end thereof, said second element being configured and dimensioned to permit said first element to be releasably and telescopically received therein through said open end thereof, so that said air vents of both elements may communicate with one another, said first and second elements being slidable relative to one another in both a rotatable and longitudinal manner so as to permit regulation of the amount of air flowing through said air inlet opening and through said vents.
Claim 2
Dependent Claim
154 words
A hand-held, non-electrically powered heating instrument, comprising: a generally cylindrical, hollow, elongated, metallic first element having means for mounting a charge of burnable fuel therein and also having a plurality of air vents at one end thereof and an air inlet opening at the opposite end thereof; a generally cylindrical, hollow, elongated, metallic second element having a substantially closed end and an opposite open end and a plurality of air vents formed substantially adjacent to said closed end thereof, said second element being configured and dimensioned to permit said first element to be releasably and telescopically received therein through said open end thereof, so that said air vents of both elements may communicate with one another, said first and second elements being slidable relative to one another in both a rotatable and longitudinal manner so as to permit regulation of the amount of air flowing through said air inlet opening and through said vents.
Claim 3
Dependent Claim
14 words
The heating instrument according to claim 1, additionally including a charge of burnable fuel.
Claim 4
Dependent Claim
15 words
The heating instrument according to claim 2, wherein said charge comprises a stick of incense.
Claim 5
Dependent Claim
50 words
The heating instrument according to claim 1, wherein said first element has a knob-like end segment formed on said opposite end thereof in which said air inlet opening is formed which serves as a finger grip to permit facile sliding movement of said first element relative to said second element.
Claim 6
Dependent Claim
43 words
The heating element according to claim 4, wherein said first element has a pair of opposed radially outwardly-extending resilient flanges disposed adjacent to said one end thereof which serve to enhance frictional engagement between said first and second elements during telescopic engagement therebetween.
Claim 7
Dependent Claim
51 words
The heating element according to claim 1, wherein said plurality of air vents formed in said second element comprises a plurality of parallel and radially spaced-apart elongated slots formed in said second element adjacent to said closed end thereof and wherein said closed end has an air outlet opening extending therethrough.
Claim 8
Dependent Claim
36 words
The heating element according to claim 1, wherein said first element has an opening extending through said one end thereof which serves as said mounting means and in which said charge of fuel may be mounted.
Claim 9
Dependent Claim
40 words
The heating element according to claim 5, wherein said plurality of air vents of said first element comprise a plurality of parallel and radially spaced-apart elongated slots formed in said first element on the opposite lateral sides of said flanges.
Claim 10
Dependent Claim
15 words
The heating element according to claim 1, wherein said elements are made from silver-coated brass.
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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |