US3585379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: Individual
•
Filing: 1968-09-06
•
Granted: 1971-06-15
•
Expires: 1988-09-06
Abstract
Abstract A lighting fixture for producing a flamelike flickering light. A bulb in a light socket is surrounded by an opaque hollow tube for causing air to flow upwardly over the light bulb. A bladed rotor is rotatably mounted on the hollow tube above the light bulb, and an external tube of semitransparent material surrounds the upper end of the hollow tube and extends substantially vertically upwardly therefrom. The sides of the external tube are bent zigzag along vertical folds.
Inventors
- 👤 Bunitu Yamamoto
- 👤 Yoshikei Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:44
CPC Classifications
F; F21; F21V; F21V1/00; F21V1/10; F21S; F21S10/00; F21S10/04; Y; Y10; Y10S; Y10S362/00; Y10S362/806
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
185 words
A lighting fixture comprising a light socket, a frame on which said light socket is mounted, said frame having an aperture in the bottom thereof and having means for at least partially closing the aperture, a light bulb in said socket, a hollow unperforated opaque tube mounted on said frame and positioned around and spaced from said light bulb and extending to a position just above said light bulb, a bladed rotor rotatably mounted on said hollow tube above said light bulb and rotatable by the heated air rising through said tube around said light bulb, said rotor being positioned adjacent the top end of said hollow tube for interrupting the light radiating from said bulb, and an external tube of semitransparent material mounted on said frame having the lower end around and just below the upper end of said hollow tube, said external tube having substantially vertically extending sides which are bent zigzag along folds extendIng vertically along the tube, whereby the light radiating from the light bulb through the rotor produces a flamelike flickering light which appears to ascend along the external tube.
Claim 2
Dependent Claim
185 words
A lighting fixture comprising a light socket, a frame on which said light socket is mounted, said frame having an aperture in the bottom thereof and having means for at least partially closing the aperture, a light bulb in said socket, a hollow unperforated opaque tube mounted on said frame and positioned around and spaced from said light bulb and extending to a position just above said light bulb, a bladed rotor rotatably mounted on said hollow tube above said light bulb and rotatable by the heated air rising through said tube around said light bulb, said rotor being positioned adjacent the top end of said hollow tube for interrupting the light radiating from said bulb, and an external tube of semitransparent material mounted on said frame having the lower end around and just below the upper end of said hollow tube, said external tube having substantially vertically extending sides which are bent zigzag along folds extendIng vertically along the tube, whereby the light radiating from the light bulb through the rotor produces a flamelike flickering light which appears to ascend along the external tube.
Claim 3
Dependent Claim
21 words
A lighting fixture as claimed in claim 1 in which said light bulb has a plurality of opaque helical stripes thereon.
Claim 4
Dependent Claim
30 words
A lighting fixture as claimed in claim 1 further comprising a cover for said bulb which is at least partially transparent and having a plurality of opaque helical stripes thereon.
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |