US3170086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeless discharge lamp apparatus
Assignee: Varian Medical Systems Inc
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Filing: 1962-01-26
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Granted: 1965-02-16
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Expires: 1982-01-26
Abstract
No abstract record available.
Inventors
- 👤 William E Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:20
CPC Classifications
G; G01; G01N; G01N24/00; G01N24/006; H; H01; H01J; H01J65/00; H01J65/04; H01J65/042; H01J65/048; H05; H05B; H05B41/00; H05B41/14; H05B41/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
AN ELECTRODELESS DISCHARGE LAMP APPARATUS COMPRISING: A BULB CONTAINING A DISCHARGE SUBSTANCE SEALED THEREIN, SAID SUBSTANCE BEING IN THE GASEOUS STATE AT GLOW DISCHARGE PRESSURE IN OPERATION, SAID BULB HAVING AT LEAST A LIGHT TRANSMISSIVE PORTION FOR TRANSMISSION OF LIGHT OUT OF SAID BULB; EXCITING MEANS AT LEAST PARTIALLY DISPOSED EXTERNALLY TO SAID BULB FOR EXCITING AN OPTICALLY RADIATING DISCHARGE THEREIN; SAID EXCITING MEANS INCLUDING A SOURCE OF R.F. ENERGY, A FIRST TERMINATION CIRCUIT MEANS PORTION DISPOSED INDUCTIVELY ADJACENT SAID BULB AND COUPLED TO SAID SOUCE FOR GENERATING AN ALTERNATING R.F. MAGNETIC FIELD IN SAID BULB WHICH DISSIPATES SUFFICIENT POWER IN THE DISCHARGE WHEN EXCITED TO MAINTAIN SAID DISCHARGE, AND A TURNED SECOND TERMINATION CIRCUIT MEANS PORTION TUNED TO A FREQUENCY HAVING A PEAKED RESPONSE AT SUBSTANTIALLY A FREQUENCY OF R.F. ENERGY SUPPLIED FROM SAID SOURCE AND DISPOSED INDUCTIVELY ADJACENT SAID BULB AND INITIALLY INDUCTIVELY COUPLED TO SAID FIRST TERMINATION CIRCUIT MEANS PORTION FOR BUILDING UP A HIGH INTENSITY ALTERNATING FIELD IN SAID BULB WHICH INITIATES SAID DISCHARGE, AND THEREAFTER BEING AT LEAST PARTIALLY DECOUPLED FROM SAID FIRST TERMINATION CIRCUIT MEANS PORTION BY THE CONDUCTIVITY OF THE DISCHARGE.
Claim 2
Dependent Claim
188 words
AN ELECTRODELESS DISCHARGE LAMP APPARATUS COMPRISING: A BULB CONTAINING A DISCHARGE SUBSTANCE SEALED THEREIN, SAID SUBSTANCE BEING IN THE GASEOUS STATE AT GLOW DISCHARGE PRESSURE IN OPERATION, SAID BULB HAVING AT LEAST A LIGHT TRANSMISSIVE PORTION FOR TRANSMISSION OF LIGHT OUT OF SAID BULB; EXCITING MEANS AT LEAST PARTIALLY DISPOSED EXTERNALLY TO SAID BULB FOR EXCITING AN OPTICALLY RADIATING DISCHARGE THEREIN; SAID EXCITING MEANS INCLUDING A SOURCE OF R.F. ENERGY, A FIRST TERMINATION CIRCUIT MEANS PORTION DISPOSED INDUCTIVELY ADJACENT SAID BULB AND COUPLED TO SAID SOUCE FOR GENERATING AN ALTERNATING R.F. MAGNETIC FIELD IN SAID BULB WHICH DISSIPATES SUFFICIENT POWER IN THE DISCHARGE WHEN EXCITED TO MAINTAIN SAID DISCHARGE, AND A TURNED SECOND TERMINATION CIRCUIT MEANS PORTION TUNED TO A FREQUENCY HAVING A PEAKED RESPONSE AT SUBSTANTIALLY A FREQUENCY OF R.F. ENERGY SUPPLIED FROM SAID SOURCE AND DISPOSED INDUCTIVELY ADJACENT SAID BULB AND INITIALLY INDUCTIVELY COUPLED TO SAID FIRST TERMINATION CIRCUIT MEANS PORTION FOR BUILDING UP A HIGH INTENSITY ALTERNATING FIELD IN SAID BULB WHICH INITIATES SAID DISCHARGE, AND THEREAFTER BEING AT LEAST PARTIALLY DECOUPLED FROM SAID FIRST TERMINATION CIRCUIT MEANS PORTION BY THE CONDUCTIVITY OF THE DISCHARGE.
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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |