US3831053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential output lamp containing chlorine and hydrogen
Assignee: General Electric Co
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Filing: 1973-06-28
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Granted: 1974-08-20
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Expires: 1993-06-28
Abstract
Abstract A differential output incandescent lamp of the pulled turn coil type, having an on-off duty cycle, contains chlorine and hydrogen to establish a halogen regenerative cycle. The amount of chlorine varies between 3.6 X 10 7 and 5.1 X 1o 7 grams atoms/cc, and the amount of hydrogen varies between 1.8 to 4.0 X 10 7 gram atoms/cc.
Inventors
- 👤 R Holcomb
- 👤 W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:53
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/52; H01K1/54; H01K7/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
144 words
A halogen regenerative cycle incandescent lamp of the differential output pulled turn type, having a duty cycle with an off time within the range from 0 to 28 seconds, comprising an elongated tubular envelope, a filament of the differential output pulled turn type extending axially of said envelope, current supply conductors connected to respective ends of said filament and hermetically sealEd in said envelope, a filling in said envelope of an inert fill gas, a quantity of hydrogen and a quantity of chlorine, the improvement which comprises a selection of gases wherein the chlorine is present in the range of about 2.6 X 10 7 gram atoms/cc to 5.1 X 10 7 gram atoms/cc, the hydrogen is present in the range of about 1.8 to 4.0 X 10 7 gram atoms/cc and the ratio of hydrogen to chlorine varies from approximately 0.352 to 1.11.
Claim 2
Dependent Claim
144 words
A halogen regenerative cycle incandescent lamp of the differential output pulled turn type, having a duty cycle with an off time within the range from 0 to 28 seconds, comprising an elongated tubular envelope, a filament of the differential output pulled turn type extending axially of said envelope, current supply conductors connected to respective ends of said filament and hermetically sealEd in said envelope, a filling in said envelope of an inert fill gas, a quantity of hydrogen and a quantity of chlorine, the improvement which comprises a selection of gases wherein the chlorine is present in the range of about 2.6 X 10 7 gram atoms/cc to 5.1 X 10 7 gram atoms/cc, the hydrogen is present in the range of about 1.8 to 4.0 X 10 7 gram atoms/cc and the ratio of hydrogen to chlorine varies from approximately 0.352 to 1.11.
Claim 3
Dependent Claim
51 words
A halogen regenerative cycle incandescent lamp as described in claim 1 wherein said quantity of chlorine gas is equal to 5.1 X 10 7 gram atoms/cc, said quantity of hydrogen is equal to 3.3 X 10 7 gram atoms/cc and the duty cycle is 2.0 seconds on and 28 seconds off.
Claim 4
Dependent Claim
25 words
A halogen regenerative cycle incandescent lamp as described in claim 1 wherein said chlorine is added to said lamp in the form of carbon tetrachloride.
Claim 5
Dependent Claim
29 words
A halogen regenerative cycle incandescent lamp as described in claim 1 wherein said duty cycle has an on time of two seconds and an off time of 28 seconds.
Claim 6
Dependent Claim
29 words
A halogen regenerative cycle incandescent lamp as described in claim 1 wherein said duty cycle has an on time of 2.5 seconds and an off time of 3.5 seconds.
Claim 7
Dependent Claim
29 words
A halogen regenerative cycle incandescent lamp as described in claim 1 wherein said duty cycle has an on time of 1.5 seconds and an off time of 1.0 seconds.
References Cited (Backward Citations)
US3644772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |