US3761318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edge detector utilizing all active junction radiation thermopiles
Assignee: Barnes Engineering Co
•
Filing: 1971-12-20
•
Granted: 1973-09-25
•
Expires: 1991-12-20
Abstract
Abstract A thermopile radiation detector is provided consisting of a series of differential thermocouples with all junctions spaced and thermally insulated from their support, thus making all junctions active. By providing spaced rows of thermopiles with junctions at different intervals, each forming a separate digital channel, a variety of codes can be produced. If a beam of uniform radiance is projected onto the array of detectors, a different signal is generated for each given position of the radiation edge in the field of view of the thermopile. This is useful for edge detecting applications.
Inventors
- 👤 Henry T Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:51
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |