US2924733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall-stabilized electric high-pressure gaseous discharge lamp
Assignee: Osram GmbH
•
Filing: 1958-09-11
•
Granted: 1960-02-09
•
Expires: 1978-09-11
Abstract
No abstract record available.
Inventors
- 👤 Schirmer Herbert
- 👤 Grabner Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:51
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18; H01J61/20; H01J61/16; H01J61/30; H01J61/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
AN ELECTRIC HIGH PRESSURE GASEOUS DISCHARGE LAMP FOR CONTINUOUS OPERATION COMPRISING AN ELONGATED ENVELOPE OF A RADIATION TRANSMITTING MATERIAL HAVING A TEMPERATURE RESISTANCE SIMILAR TO QUARTS, A PAIR OF ELECTRODES MOUNTED IN SAID ENVELOPE AT A DISTANCE APART AMOUNTING TO AT LEAST DOUBLE THE INSIDE DIAMETER OF THE ENVELOPE, AND A GASEOUS IONIZABLE FILLING WITHIN SAID ENVELOPE OF AN INERT GAS FROM THE GROUP CONSISTING OF XENON, KRYPTON, ARGON, NEON, HELIUM AND MIXTURES THEREOF AT A FILLING PRESSURE EQUIVALENT TO A PRESSURE IN THE RANGE OF 5 TO 350 MILLIMETERS OF MERCURY IN A LAMP WITHOUT DEAD SPACE, SAID LAMP HAVING AN INPUT WATTAGE CONCENTRATION IN THE RANGE OF 5 TO 200 WATTS PER CUBIC CENTIMETER AND BEI-NG SO PROPORTIONED WITH RESPECT TO DISTANCE APART OF THE ELECTRODES AND INSIDE DIAMETER OF THE EVELOPE THAT WITH THE SAID INPUT CONCENTRATION AND WITH THE SAID FILLING PRESSURE IN THE ABSENCE OF ANY ARTIFICIAL COOLING A WALL-STABILIZED DISCHARGE IS ACHIEVED.
Claim 2
Dependent Claim
158 words
AN ELECTRIC HIGH PRESSURE GASEOUS DISCHARGE LAMP FOR CONTINUOUS OPERATION COMPRISING AN ELONGATED ENVELOPE OF A RADIATION TRANSMITTING MATERIAL HAVING A TEMPERATURE RESISTANCE SIMILAR TO QUARTS, A PAIR OF ELECTRODES MOUNTED IN SAID ENVELOPE AT A DISTANCE APART AMOUNTING TO AT LEAST DOUBLE THE INSIDE DIAMETER OF THE ENVELOPE, AND A GASEOUS IONIZABLE FILLING WITHIN SAID ENVELOPE OF AN INERT GAS FROM THE GROUP CONSISTING OF XENON, KRYPTON, ARGON, NEON, HELIUM AND MIXTURES THEREOF AT A FILLING PRESSURE EQUIVALENT TO A PRESSURE IN THE RANGE OF 5 TO 350 MILLIMETERS OF MERCURY IN A LAMP WITHOUT DEAD SPACE, SAID LAMP HAVING AN INPUT WATTAGE CONCENTRATION IN THE RANGE OF 5 TO 200 WATTS PER CUBIC CENTIMETER AND BEI-NG SO PROPORTIONED WITH RESPECT TO DISTANCE APART OF THE ELECTRODES AND INSIDE DIAMETER OF THE EVELOPE THAT WITH THE SAID INPUT CONCENTRATION AND WITH THE SAID FILLING PRESSURE IN THE ABSENCE OF ANY ARTIFICIAL COOLING A WALL-STABILIZED DISCHARGE IS ACHIEVED.
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) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |