Patent US3688148A successfully refreshed from Google Patents.
US3688148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amalgam housing means for a fluorescent lamp
Assignee: Individual
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Filing: 1970-11-17
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Granted: 1972-08-29
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Expires: 1990-11-17
Abstract
Abstract The invention relates to fluorescent lamps with an amalgam. The disclosed fluorescent lamp with an amalgam comprises within its internal space means for housing the amalgam thereinside, one end portion of said means being positioned in the hightemperature zone of the lamp, adjacent to the cathode thereof, the opposite end portion of said means being positioned in the low-temperature zone of said lamp, adjacent to the base thereof. Said means can be adapted either for free displacement of the amalgam thereinside, when the lamp is to be mounted into a light fixture, or for retaining said amalgam in a fixed desired position thereinside.
Inventors
- 👤 Anatoly Stepanovich Fedorenko
- 👤 Jury Alexeevich Mescheryakov
- 👤 Alexandr Alexandrovich Prytkov
- 👤 Vladimir Vasilievich Tyabirdin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:53
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H01J61/72
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
199 words
A fluorescent lamp with an amalgam, comprising: a glass envelope coated with a fluorescent layer and having an end portion thereof associated with a base of said lamp; a plurality of stems positioned within said envelope; means for housing said amalgam, said means being positioned in one of said plurality of stems; each said stem being associated with at least two electrode wires connected with a cathode; said housing means having one end portion thereof positioned in the high-temperature zone of said lamp adjacent to said respective cathode, said housing means having the opposite end portion thereof positioned in the low-temperature zone of said lamp adjacent to said base thereof, said housing means including an exhaust tube means for said lamp, said exhaust tube means including a tubular member provided with a pair of substantially spherically expanded portions adjacent to the respective opposite ends of said tubular member, said expanded portions being adapted to retain said amalgam interiorly thereof when said lamp is installed in a light fixture for operation in a horizontal position, the respective dimensions of said tubular member and said amalgam being selected so as to permit free displacement of said amalgam within said tubular member.
Claim 2
Dependent Claim
199 words
A fluorescent lamp with an amalgam, comprising: a glass envelope coated with a fluorescent layer and having an end portion thereof associated with a base of said lamp; a plurality of stems positioned within said envelope; means for housing said amalgam, said means being positioned in one of said plurality of stems; each said stem being associated with at least two electrode wires connected with a cathode; said housing means having one end portion thereof positioned in the high-temperature zone of said lamp adjacent to said respective cathode, said housing means having the opposite end portion thereof positioned in the low-temperature zone of said lamp adjacent to said base thereof, said housing means including an exhaust tube means for said lamp, said exhaust tube means including a tubular member provided with a pair of substantially spherically expanded portions adjacent to the respective opposite ends of said tubular member, said expanded portions being adapted to retain said amalgam interiorly thereof when said lamp is installed in a light fixture for operation in a horizontal position, the respective dimensions of said tubular member and said amalgam being selected so as to permit free displacement of said amalgam within said tubular member.
Claim 3
Dependent Claim
163 words
A fluorescent lamp with an amalgam, comprising: a glass envelope coated with a fluorescent layer and having an end portion thereof associated with a base of said lamp; a plurality of stems positioned within said envelope; means for housing said amalgam, said means being positioned in one of said plurality of stems; each said stem being associated with at least two electrode wires connected with a cathode; said housing means having one end portion thereof positioned in the high-temperature zone of said lamp adjacent to said respective cathode, said housing means having the opposite end portion thereof positioned in the low-temperature zone of said lamp adjacent to saiD base thereof, said housing means including an exhaust tube means for said lamp, said means for housing said amalgam including a container mounted in said exhaust tube means for said lamp, said container being retained at the end thereof, facing said cathode, by a bracket means connected with one of said electrodes of said lamp.
Claim 4
Dependent Claim
163 words
A fluorescent lamp with an amalgam, comprising: a glass envelope coated with a fluorescent layer and having an end portion thereof associated with a base of said lamp; a plurality of stems positioned within said envelope; means for housing said amalgam, said means being positioned in one of said plurality of stems; each said stem being associated with at least two electrode wires connected with a cathode; said housing means having one end portion thereof positioned in the high-temperature zone of said lamp adjacent to said respective cathode, said housing means having the opposite end portion thereof positioned in the low-temperature zone of said lamp adjacent to saiD base thereof, said housing means including an exhaust tube means for said lamp, said means for housing said amalgam including a container mounted in said exhaust tube means for said lamp, said container being retained at the end thereof, facing said cathode, by a bracket means connected with one of said electrodes of said lamp.
Claim 5
Dependent Claim
49 words
A fluorescent lamp, as claimed in claim 2, wherein said container includes a tube having the opposite end portions of the wall thereof bent inwardly, said amalgam being retained in said tube at least from one side by an auxiliary tube having a smaller diameter than said first-mentioned tube.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |