US3089070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric converter or the like
Assignee: Hoffman Electronics Corp
•
Filing: 1957-09-03
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Granted: 1963-05-07
•
Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:09
CPC Classifications
H; H02; H02S; H02S40/00; H02S40/30; H02S40/38; H10; H10F; H10F10/00; H10F10/10; H10F10/14; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/547; Y02E70/00; Y02E70/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
AN APPARATUS FOR CONVERTING LIGHT ENERGY INTO ELECTRICAL ENERGY FOR THE PURPOSE OF MAINTAINING A STORAGE BATTERY IN CHARGED CONDITION, COMPRISING A PHOTOVOLTAIC CELL HAVING A BODY PORTION OF SEMICONDUCTOR MATERIAL OF A FIRST TYPE, ONE SURFACE OF SAID BODY PORTION HAVING A LAYER OF THE OPPOSITE CONDUCTOR TYPE TO FORM A FIRST RECTIFYING JUNCTION, SAID LAYER ADAPTED FOR LIGHT IMPINGEMENT THEREON, ANOTHER SURFACE OF SAID BODY PORTION HAVING A LAYER OF THE SAME SEMICONDUCTOR TYPE AS SAID FIRST MENTIONED LAYER TO FORM A SECOND RECTIFYING JUNCTION, ELECTORDES FOR SAID FIRST SECOND MENTIONED LAYERS, A STORAGE BATTERY, AND MEANS FOR CONNECTING SAID ELECTRODES TO SAID STORAGE BATTERY IN SUCH MANNER THAT SAID JUNCTIONS ARE IN SERIES WITH SAID BATTERY; WHEREBY UPON CESSATION OF LIGHT IMPINGEMENT UPON SAID FIRST MENTIONED LAYER, SAID SECOND JUNCTION ACTS AS A HIGH RESISTANCE TO SAID BATTERY TO PREVENT DISCHARGE OF SAID BATTERY THROUGH SAID PHOTOVOLTAIC CELL.
Claim 2
Independent Claim
151 words
AN APPARATUS FOR CONVERTING LIGHT ENERGY INTO ELECTRICAL ENERGY FOR THE PURPOSE OF MAINTAINING A STORAGE BATTERY IN CHARGED CONDITION, COMPRISING A PHOTOVOLTAIC CELL HAVING A BODY PORTION OF SEMICONDUCTOR MATERIAL OF A FIRST TYPE, ONE SURFACE OF SAID BODY PORTION HAVING A LAYER OF THE OPPOSITE CONDUCTOR TYPE TO FORM A FIRST RECTIFYING JUNCTION, SAID LAYER ADAPTED FOR LIGHT IMPINGEMENT THEREON, ANOTHER SURFACE OF SAID BODY PORTION HAVING A LAYER OF THE SAME SEMICONDUCTOR TYPE AS SAID FIRST MENTIONED LAYER TO FORM A SECOND RECTIFYING JUNCTION, ELECTORDES FOR SAID FIRST SECOND MENTIONED LAYERS, A STORAGE BATTERY, AND MEANS FOR CONNECTING SAID ELECTRODES TO SAID STORAGE BATTERY IN SUCH MANNER THAT SAID JUNCTIONS ARE IN SERIES WITH SAID BATTERY; WHEREBY UPON CESSATION OF LIGHT IMPINGEMENT UPON SAID FIRST MENTIONED LAYER, SAID SECOND JUNCTION ACTS AS A HIGH RESISTANCE TO SAID BATTERY TO PREVENT DISCHARGE OF SAID BATTERY THROUGH SAID PHOTOVOLTAIC CELL.
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |