US3225242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared calibration lamp
Assignee: Individual
•
Filing: 1963-05-03
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Granted: 1965-12-21
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Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Regelson Ephraim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:32
CPC Classifications
H; H01; H01K; H01K7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN INFRARED CALIBRATION APPARATUS COMPRISING IN COMBINATION: A CYLINDRICAL VESSEL HAVING TWO ENDS; A HOUSING DISPOSED AROUND SAID VESSEL; AN ELECTRICAL SOURCE BASE SEALED TO ONE END OF SAID VESSEL AND ADAPTED TO BE CONNECTED THROUGH SAID HOUSING TO A SOURCE OF ELECTRICAL POWER; A DISK COMPOSED OF INFRARED TRANSMITTING MATERIAL SEALED TO THE OTHER END OF SAID VESSEL FORMING A CLOSED VESSEL; AN ALLOY FILAMENT MOUNTED WITHIN THE VESSEL; MEANS FOR SUPPORTING SAID FILAMENT TO SAID SOURCE BASE; SAID HOUSING HAVING AN APERTURE IN THE TOP POSITIONED IN ALIGNMENT WITH SAID FILAMENT; AN OXIDIZING RESISTANT MATERIAL COATING A PORTION OF THE INSIDE OF SAID DISK LEAVING A VOID AREA OPPOSITE THE APERTURE IN SAID HOUSING; SAID APERTURE AND SAID VOID AREA POSITIONED IN ALIGNMENT WITH SAID FILAMENT WHEREBY THE INFRARED RADIATION IS EFFECTIVE THROUGH AN ANGLE DETERMINED BY THE APERTURE AND VOID AREA.
Claim 2
Dependent Claim
144 words
AN INFRARED CALIBRATION APPARATUS COMPRISING IN COMBINATION: A CYLINDRICAL VESSEL HAVING TWO ENDS; A HOUSING DISPOSED AROUND SAID VESSEL; AN ELECTRICAL SOURCE BASE SEALED TO ONE END OF SAID VESSEL AND ADAPTED TO BE CONNECTED THROUGH SAID HOUSING TO A SOURCE OF ELECTRICAL POWER; A DISK COMPOSED OF INFRARED TRANSMITTING MATERIAL SEALED TO THE OTHER END OF SAID VESSEL FORMING A CLOSED VESSEL; AN ALLOY FILAMENT MOUNTED WITHIN THE VESSEL; MEANS FOR SUPPORTING SAID FILAMENT TO SAID SOURCE BASE; SAID HOUSING HAVING AN APERTURE IN THE TOP POSITIONED IN ALIGNMENT WITH SAID FILAMENT; AN OXIDIZING RESISTANT MATERIAL COATING A PORTION OF THE INSIDE OF SAID DISK LEAVING A VOID AREA OPPOSITE THE APERTURE IN SAID HOUSING; SAID APERTURE AND SAID VOID AREA POSITIONED IN ALIGNMENT WITH SAID FILAMENT WHEREBY THE INFRARED RADIATION IS EFFECTIVE THROUGH AN ANGLE DETERMINED BY THE APERTURE AND VOID AREA.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |