US4600857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp with integral heat sink
Assignee: Individual
•
Filing: 1984-04-05
•
Granted: 1986-07-15
•
Expires: 2004-04-05
Abstract
Abstract A lamp having an integral heat sink that gives off heat as well as light during operation. The heat sink intersects the surface of the lamp adjacent the lamp filament for maximum heat transfer effect with minimum light radiation loss.
Inventors
- 👤 Craig Suhar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:18
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/58
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
72 words
A lamp with integral heat sink for radiation of heat comprising a lamp base, a translucent lamp body having first and second lamp portions, said first lamp portion secured to said lamp base, a filament within said lamp body, a centrally apertured heat transfer fin intersecting the lamp body and extending into said lamp body adjacent said filament, means for securing said heat transfer fin to said first and second lamp portions.
Claim 2
Dependent Claim
72 words
A lamp with integral heat sink for radiation of heat comprising a lamp base, a translucent lamp body having first and second lamp portions, said first lamp portion secured to said lamp base, a filament within said lamp body, a centrally apertured heat transfer fin intersecting the lamp body and extending into said lamp body adjacent said filament, means for securing said heat transfer fin to said first and second lamp portions.
Claim 3
Dependent Claim
57 words
The lamp with integral heat sink of claim 1 wherein said means for securing said heat transfer fin to said first and second lamp portions comprises spaced, oppositely disposed flanged apertured discs secured to said heat transfer, said discs having a peripheral flange and an inner annular flange registrable with said first and second lamp portions respectively.
Claim 4
Dependent Claim
64 words
The lamp with integral heat sink of claim 2 wherein said peripheral flange is internally threaded and said inner annular flange is resilient and said first and second lamp portions are threaded inwardly from their respective annular edges and registrable within said spaced oppositely disposed flanged apertured discs forming a lamp enclosure with said heat transfer fin surrounding said filament within said lamp body.
Claim 5
Dependent Claim
103 words
A lamp with integral heat sink for radiation of heat comprising a lamp base, a translucent lamp body having first and second lamp portions, said first lamp portion secured to said lamp base, a filament within said lamp body, a centrally apertured heat transfer fin intersecting the lamp body and extending into said lamp body adjacent said filament, means for securing said heat transfer fin to said first and second lamp portions and wherein said transfer fin is hollow and filled with a heat transfer material from a group represented as ethylene glycol (ethylene alcohol glycol 1,3, ethanedial (CH 2 OHCH 2 OH)).
Claim 6
Dependent Claim
103 words
A lamp with integral heat sink for radiation of heat comprising a lamp base, a translucent lamp body having first and second lamp portions, said first lamp portion secured to said lamp base, a filament within said lamp body, a centrally apertured heat transfer fin intersecting the lamp body and extending into said lamp body adjacent said filament, means for securing said heat transfer fin to said first and second lamp portions and wherein said transfer fin is hollow and filled with a heat transfer material from a group represented as ethylene glycol (ethylene alcohol glycol 1,3, ethanedial (CH 2 OHCH 2 OH)).
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |