US3128384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic illumination regulating unit
Assignee: Superior Electric Co
•
Filing: 1958-11-14
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Granted: 1964-04-07
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Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Nelson
- 👤 Richard F Greene
- 👤 Owen J Mccabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:24
CPC Classifications
H; H05; H05B; H05B39/00; H05B39/04; H05B39/041; H05B39/042; Y; Y02; Y02B; Y02B20/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN AUTOMATIC LIGHT REGULATING UNIT FOR MAINTAINING SUBSTANTIALLY CONSTANT A SELECTED VALUE OF TOTAL ILLUMINATION IN AN AREA WHICH MAY BE ILLUMINATED BY A SOURCE OF ARTIFICIAL LIGHT AND NATURAL LIGHT, COMPRISING MEANS FOR ENERGIZING THE LIGHT SOURCE, CONTROL MEANS FOR CONTROLLING THE AMOUNT OF ENERGY TRANSMITTED TO THE LIGHT SOURCE AND HENCE THE AMOUNT OF ILLUMINATION EMITTED THEREFROM, SENSING MEANS FOR PRODUCING A SIGNAL FOR REGULATING THE CONTROL MEANS, A SWITCH FOR ENERGIZING AND DEENERGIZING THE UNIT AND MEANS CONNECTED TO THE CONTROL MEANS FOR CAUSING SAID MEANS TO BE SET UPON DEENERGIZATION OF THE UNIT TO TRANSMIT THE MAXIMUM AMOUNT OF ENERGY TO THE LIGHT SOURCE WHEN THE UNIT IS NEXT ENERGIZED.
Claim 2
Dependent Claim
114 words
AN AUTOMATIC LIGHT REGULATING UNIT FOR MAINTAINING SUBSTANTIALLY CONSTANT A SELECTED VALUE OF TOTAL ILLUMINATION IN AN AREA WHICH MAY BE ILLUMINATED BY A SOURCE OF ARTIFICIAL LIGHT AND NATURAL LIGHT, COMPRISING MEANS FOR ENERGIZING THE LIGHT SOURCE, CONTROL MEANS FOR CONTROLLING THE AMOUNT OF ENERGY TRANSMITTED TO THE LIGHT SOURCE AND HENCE THE AMOUNT OF ILLUMINATION EMITTED THEREFROM, SENSING MEANS FOR PRODUCING A SIGNAL FOR REGULATING THE CONTROL MEANS, A SWITCH FOR ENERGIZING AND DEENERGIZING THE UNIT AND MEANS CONNECTED TO THE CONTROL MEANS FOR CAUSING SAID MEANS TO BE SET UPON DEENERGIZATION OF THE UNIT TO TRANSMIT THE MAXIMUM AMOUNT OF ENERGY TO THE LIGHT SOURCE WHEN THE UNIT IS NEXT ENERGIZED.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |