Patent US1547674A successfully refreshed from Google Patents.
US3129332A
Expired / Lapsed
US
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Ultra-violet detector systems
Assignee: McGraw Edison Co
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Filing: 1961-07-10
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Granted: 1964-04-14
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Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Leen Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:24
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A U-V DETECTING SYSTEM COMPRISING A U-V DETECTOR TUBE HAVING ELECTRODES IN AN ADJACENT RELATIONSHIP PROVIDING A WORKING REGION RESPONSIVE TO INCIDENT PHOTONS WHEN A FIRING VOLTAGE IS APPLIED ACROSS SAID ELECTRODES TO TRIGGER A GLOW DISCHARGE, MEANS FOR APPLYING SUCCESSIVE PULSES OF A FIRING VOLTAGE ACROSS SAID ELECTRODES OF WHICH EACH PULSE FALLS BELOW THE EXTINCTION VOLTAGE AT WHICH A DISCHARGE THEN EXISTING IS QUENCHED BEFORE THE NEXT VOLTAGE PULSE IS APPLIED, A PULSE FORMING MEANS EFFECTIVE WHEN TRIGGERED BY AN INPUT VOLTAGE TO PRODUCE A SINGLE OUTPUT PULSE OF PREDETERMINED MAGNITUDE AND PREDETERMINED DURATION, MEANS CONNECTING THE INPUT OF SAID PULSE FORMING MEANS IN CIRCUIT WITH SAID U-V DETECTOR TUBE, AND A UTILIZATION DEVICE CONNECTED TO THE OUTPUT OF SAID PULSE FORMING MEANS.
Claim 2
Dependent Claim
125 words
A U-V DETECTING SYSTEM COMPRISING A U-V DETECTOR TUBE HAVING ELECTRODES IN AN ADJACENT RELATIONSHIP PROVIDING A WORKING REGION RESPONSIVE TO INCIDENT PHOTONS WHEN A FIRING VOLTAGE IS APPLIED ACROSS SAID ELECTRODES TO TRIGGER A GLOW DISCHARGE, MEANS FOR APPLYING SUCCESSIVE PULSES OF A FIRING VOLTAGE ACROSS SAID ELECTRODES OF WHICH EACH PULSE FALLS BELOW THE EXTINCTION VOLTAGE AT WHICH A DISCHARGE THEN EXISTING IS QUENCHED BEFORE THE NEXT VOLTAGE PULSE IS APPLIED, A PULSE FORMING MEANS EFFECTIVE WHEN TRIGGERED BY AN INPUT VOLTAGE TO PRODUCE A SINGLE OUTPUT PULSE OF PREDETERMINED MAGNITUDE AND PREDETERMINED DURATION, MEANS CONNECTING THE INPUT OF SAID PULSE FORMING MEANS IN CIRCUIT WITH SAID U-V DETECTOR TUBE, AND A UTILIZATION DEVICE CONNECTED TO THE OUTPUT OF SAID PULSE FORMING MEANS.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |