US4524302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
General service incandescent lamp with improved efficiency
Assignee: General Electric Co
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Filing: 1983-08-01
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Granted: 1985-06-18
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Expires: 2003-08-01
Abstract
Abstract A high efficiency general service incandescent lamp is disclosed. The disclosed improved general service incandescent lamp has an outer and an inner envelope. The inner envelope has a relatively small housing containing a halogen gas and a relatively high pressure efficient fill-gas and in which a low voltage filament is spatially disposed therein.
Inventors
- 👤 Ivan Berlec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:41
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/28; H01K1/34; H01K1/02; H01K1/14; Y; Y02; Y02B; Y02B20/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
110 words
An improved general service incandescent lamp comprising: (a) an electrically conductive base; (b) an outer envelope hermetically sealed to said base; (c) an inner envelope spatially disposed within said outer envelope and containing a halogen gas and a relatively high pressure fill-gas selected from the group consisting of xenon, krypton, argon and mixtures of these inert gases; and (d) a tungsten filament spatially disposed within said inner envelope, said filament being specially adapted by having selected larger wire diameters and shorter wire lengths both relative to typical filaments so as to be effectively energizable for normal operating wattage rating at a reduced voltage relative to a typical household power source.
Claim 2
Dependent Claim
110 words
An improved general service incandescent lamp comprising: (a) an electrically conductive base; (b) an outer envelope hermetically sealed to said base; (c) an inner envelope spatially disposed within said outer envelope and containing a halogen gas and a relatively high pressure fill-gas selected from the group consisting of xenon, krypton, argon and mixtures of these inert gases; and (d) a tungsten filament spatially disposed within said inner envelope, said filament being specially adapted by having selected larger wire diameters and shorter wire lengths both relative to typical filaments so as to be effectively energizable for normal operating wattage rating at a reduced voltage relative to a typical household power source.
Claim 3
Dependent Claim
29 words
A general service incandescent lamp according to claim 1 wherein said filament is of a coiled-coil type and is spatially disposed in an axial manner relative to said lamp.
Claim 4
Dependent Claim
29 words
A general service incandescent lamp according to claim 1 wherein said filament is of a coiled-coil type and is spatially disposed within said inner envelope in a transverse manner.
Claim 5
Dependent Claim
29 words
A general service incandescent lamp according to claim 1 wherein said filament is a single coil type and is spatially disposed in an axial manner relative to said lamp.
Claim 6
Dependent Claim
29 words
A general service incandescent lamp according to claim 1 wherein said filament is a single coil type and is spatially disposed within said inner envelope in a transverse manner.
Claim 7
Dependent Claim
28 words
A general service incandescent lamp according to claim 1 wherein said relatively high pressure fill-gas is within the range of approximately 1500 to 7000 Torr at room temperature.
Claim 8
Dependent Claim
29 words
A general service incandescent lamp according to claim 1 wherein said relatively high pressure fill-gas is preferably within the range of approximately 2000 to 3000 Torr at room temperature.
Claim 9
Dependent Claim
26 words
A general service incandescent lamp according to claim 1 wherein said fill-gas further comprises a nitrogen gas addivitive within the range of approximately 1 to 15%.
Claim 10
Dependent Claim
55 words
A general service incandescent lamp according to either claim 1 or claim 8 wherein said halogen gas is in the range of approximately 0.02% to 0.2% of the fill-gas and is selected from the group of compositions consisting of CH 3 Br, CH 2 Br 2 , CH 3 I, I 2 , and HBr.
Claim 11
Dependent Claim
43 words
A general service incandescent lamp according to claim 1 wherein said general service incandescent lamp has a rating of 60 watts and said filament is energizable at its normal operating wattage by a voltage within the range of approximately 20 to 30 volts.
Claim 12
Dependent Claim
43 words
A general service incandescent lamp according to claim 1 wherein said general service incandescent lamp has a rating of 75 watts and said filament is energizable at its normal operating wattage by a voltage within the range of approximately 20 to 30 volts.
Claim 13
Dependent Claim
43 words
A general service incandescent lamp according to claim 1 wherein said general service incandescent lamp has a rating of 100 watts and said filament is energizable at its normal operating wattage by a voltage in the range of approximately 30 to 50 volts.
Claim 14
Dependent Claim
44 words
A general service incandescent lamp according to claim 1 wherein said general service incandescent lamp has a rating of 100 watts and said filament is energizable at its normal operating wattage by a voltage preferably in the range of approximately 30 to 40 volts.
Claim 15
Dependent Claim
43 words
A general service incandescent lamp according to claim 1 wherein said general service incandescent lamp has a rating of 150 watts and said filament is energizable at its normal operating wattage by a voltage within the range of approximately 30 to 50 volts.
Claim 16
Dependent Claim
44 words
A general service incandescent lamp according to claim 1 wherein said general service incandescent lamp has a rating of 150 watts and said filament is energizable at its normal operating wattage by a voltage preferably within the range of approximately 30 to 40 volts.
Claim 17
Dependent Claim
27 words
A general service incandescent lamp according to claim 1 wherein said inner envelope has a volumetric capacity in the range of approximately 0.33 to 5.0 cubic centimeters.
Claim 18
Dependent Claim
18 words
A general service incandescent lamp according to claim 1 wherein said inner envelope is formed of quartz material.
Claim 19
Dependent Claim
19 words
A general service incandescent lamp according to claim 1 wherein said inner envelope is formed of a glass material.
Claim 20
Dependent Claim
18 words
A general service incandescent lamp according to claim 1 wherein said inner envelope is of a double-ended type.
Claim 21
Dependent Claim
18 words
A general service incandescent lamp according to claim 1 wherein said inner envelope is of a single-ended type.
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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) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |