US3287587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature fluorescent lamp with reflector having mercury amalgamative material on its electrode stems
Assignee: GTE Sylvania Inc
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Filing: 1964-12-31
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Granted: 1966-11-22
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Richard A Menelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:47
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H01J61/72; H01J5/00; H01J5/02; H01J5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A HIGH TEMPERATURE FLUORESCENT LAMP INSTALLATION COMPRISING A HOUSING, A LIGHT COMPARTMENT WITHIN SAID HOUSING INCLUDING A REFLECTOR, A MERCURY FILLED FLUORESCENT LAMP EXTENDING THROUGH SAID REFLECTOR WITH AT LEAST ONE END OF THER LAMP OUTSIDE SAID REFLETOR, SAID LAMP INCLUDING A STEM SEALING SAID ONE LAMP END AND EXTENDING TOWARD THE OTHER LAMP END, AND A DEPOSIT OF MERCURY-AMALGAMATIVE METAL ON A PORTION OF THE SURFACE OF SAID STEM, AND MEANS TO SUPPORT THE LAMP WITH SAID PORTION OUTSIDE SAID REFLECTOR, WHEREBY SAID DEPOSIT IS EXPOSED TO A TEMPERATURE LOWER THAN THAT OF THE LAMP PORTION WITHIN THE REFLECTOR SO AS TO REDUCE THE VAPOR PRESSURE OF THE MERCURY BY AMALGAMATION THEREWITH, THEREBY TO INCREASE THE LIGHT OUTPUT OF THE LAMP PORTION WITHIN THE REFLECTOR.
Claim 2
Dependent Claim
126 words
A HIGH TEMPERATURE FLUORESCENT LAMP INSTALLATION COMPRISING A HOUSING, A LIGHT COMPARTMENT WITHIN SAID HOUSING INCLUDING A REFLECTOR, A MERCURY FILLED FLUORESCENT LAMP EXTENDING THROUGH SAID REFLECTOR WITH AT LEAST ONE END OF THER LAMP OUTSIDE SAID REFLETOR, SAID LAMP INCLUDING A STEM SEALING SAID ONE LAMP END AND EXTENDING TOWARD THE OTHER LAMP END, AND A DEPOSIT OF MERCURY-AMALGAMATIVE METAL ON A PORTION OF THE SURFACE OF SAID STEM, AND MEANS TO SUPPORT THE LAMP WITH SAID PORTION OUTSIDE SAID REFLECTOR, WHEREBY SAID DEPOSIT IS EXPOSED TO A TEMPERATURE LOWER THAN THAT OF THE LAMP PORTION WITHIN THE REFLECTOR SO AS TO REDUCE THE VAPOR PRESSURE OF THE MERCURY BY AMALGAMATION THEREWITH, THEREBY TO INCREASE THE LIGHT OUTPUT OF THE LAMP PORTION WITHIN THE REFLECTOR.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |