Patent US3247413A successfully refreshed from Google Patents.
US3247413A
Expired / Lapsed
US
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Ultra-violet radiation sensing device
Assignee: GTE Sylvania Inc
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Filing: 1963-12-09
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Granted: 1966-04-19
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Robert J Bisso
- 👤 Herbert Harold William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:14
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A DEVICE FOR SENSING INCREMENTAL CHANGES IN THE AMOUNT OF INCIDENT SPECTRAL RADIATION OF A FIRST WAVELENGTH FALLING THEREON COMPRISING: AN OPAQUE, SUBSTANTIALLY CUPSHAPED BASE MEMBER HAVING A BOTTOM AND A CONTIGUOUS UPSTANDING WALL; A PHOTOCELL COMPRISING AN ENCAPSULATING ENVELOPE HAVING AN UPPER SURFACE TRANSPARENT TO RADIATION OF A SECOND WAVELENGTH, A PHOTOSENSITIVE MATERIAL RESPONSIVE TO RADIATION OF SAID SECOND WAVELENGTH MOUNTED WITHIN SAID ENVELOPE ADJACENT SAID UPPER SURFACE, AND A PAIR OF ELECTRICALLY CONDUCTIVE LEADS CONNECTED TO SAID PHOTOSENSITIVE MATERIAL EACH TERMINATING OUTSIDE SAID ENVELOPE; SAID PHOTOCELL BEING POSITIONED WITHIN SAID CUP-SHAPED BASE MEMBER WITH SAID LEADS PROJECTING EXTERIORLY OF SAID BASE MEMBER; A FILTER TRANSMITTING RADIATION OF SAID FIRST WAVELENGTH SEALING THE OPEN END OF SAID BASE MEMBER, AND A LAYER OF PHOSPHOR POSITIONED INTERMEDIATE SAID FILTER AND SAID UPPER SURFACE OF SAID PHOTOCELL, SAID PHOSPHOR EMITTING RADIATION OF SAID SECOND WAVELENGTH WHEN IMPINGED BY RADIATION OF SAID FIRST WAVELENGTH.
Claim 2
Independent Claim
152 words
A DEVICE FOR SENSING INCREMENTAL CHANGES IN THE AMOUNT OF INCIDENT SPECTRAL RADIATION OF A FIRST WAVELENGTH FALLING THEREON COMPRISING: AN OPAQUE, SUBSTANTIALLY CUPSHAPED BASE MEMBER HAVING A BOTTOM AND A CONTIGUOUS UPSTANDING WALL; A PHOTOCELL COMPRISING AN ENCAPSULATING ENVELOPE HAVING AN UPPER SURFACE TRANSPARENT TO RADIATION OF A SECOND WAVELENGTH, A PHOTOSENSITIVE MATERIAL RESPONSIVE TO RADIATION OF SAID SECOND WAVELENGTH MOUNTED WITHIN SAID ENVELOPE ADJACENT SAID UPPER SURFACE, AND A PAIR OF ELECTRICALLY CONDUCTIVE LEADS CONNECTED TO SAID PHOTOSENSITIVE MATERIAL EACH TERMINATING OUTSIDE SAID ENVELOPE; SAID PHOTOCELL BEING POSITIONED WITHIN SAID CUP-SHAPED BASE MEMBER WITH SAID LEADS PROJECTING EXTERIORLY OF SAID BASE MEMBER; A FILTER TRANSMITTING RADIATION OF SAID FIRST WAVELENGTH SEALING THE OPEN END OF SAID BASE MEMBER, AND A LAYER OF PHOSPHOR POSITIONED INTERMEDIATE SAID FILTER AND SAID UPPER SURFACE OF SAID PHOTOCELL, SAID PHOSPHOR EMITTING RADIATION OF SAID SECOND WAVELENGTH WHEN IMPINGED BY RADIATION OF SAID FIRST WAVELENGTH.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |