US4074111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizing attachment for light bulbs
Assignee: Individual
•
Filing: 1977-01-27
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Granted: 1978-02-14
•
Expires: 1997-01-27
Abstract
Abstract A shroud is detachably engaged around the neck of a light bulb and is detachably sealed to the bulb at this point so that it is leakproof. The shroud extends upwardly around the bulb and is spaced therefrom. Liquid or crystal fragrance, deodorant, insecticide or the like is poured into the lower portion of the shroud surrounding the light bulb so that when lit, the heat from the bulb vaporizes the liquid or crystals and the vapor is dispersed from the open upper end of the shroud by convection air currents. An elastomeric O-ring is in wedging contact between the lower end of the light bulb and the lower end of the shroud immediately above the sealing material in order to protect the sealing material from liquids within the shroud.
Inventors
- 👤 William G. Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:30
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/02; A61L9/03; H; H05; H05B; H05B3/00; H05B3/0033; A61L2209/00; A61L2209/10; A61L2209/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
196 words
An article of manufacture comprising in combination a vaporizing shroud and an electric light bulb, said electric light bulb including an envelope and a metal screw threaded base secured to one end of the envelope, said shroud including an open lower, relatively small, reservoir end portion and an open upper, relatively large, evaporating portion, means to detachably secure said shroud by the lower end thereof around the portion of said envelope adjacent said metal base whereby said shroud is sealably secured to said envelope and extends upwardly therefrom in spaced relationship, said lower end portion forming an annular reservoir around said light bulb, said upper end portion forming an evaporating chamber above said reservoir and means to sealably secure said shroud to said light bulb, said last mentioned means including epoxy resin adhesive between said lower small end of said shroud and the associated portion of said envelope above said metal base and a flexible elastomeric O ring surrounding said associated portion of said envelope and within said epoxy resin and being in wedging contact with the inner surface of said lower small end of said shroud thereby sealing said lower small end to said envelope.
Claim 2
Dependent Claim
196 words
An article of manufacture comprising in combination a vaporizing shroud and an electric light bulb, said electric light bulb including an envelope and a metal screw threaded base secured to one end of the envelope, said shroud including an open lower, relatively small, reservoir end portion and an open upper, relatively large, evaporating portion, means to detachably secure said shroud by the lower end thereof around the portion of said envelope adjacent said metal base whereby said shroud is sealably secured to said envelope and extends upwardly therefrom in spaced relationship, said lower end portion forming an annular reservoir around said light bulb, said upper end portion forming an evaporating chamber above said reservoir and means to sealably secure said shroud to said light bulb, said last mentioned means including epoxy resin adhesive between said lower small end of said shroud and the associated portion of said envelope above said metal base and a flexible elastomeric O ring surrounding said associated portion of said envelope and within said epoxy resin and being in wedging contact with the inner surface of said lower small end of said shroud thereby sealing said lower small end to said envelope.
Claim 3
Dependent Claim
47 words
The article according to claim 1 in which said shroud increases in diameter from said lower end thereof through the upper end portion thereof and then decreases in diameter slightly at said upper end, said upper end terminating above the other end of said light bulb envelope.
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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |