Patent US3587291A successfully refreshed from Google Patents.
US3587291A
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Particle detection method and apparatus
Assignee: Boeing North American Inc
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Filing: 1968-03-26
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Granted: 1971-06-28
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Expires: 1988-03-26
Abstract
Abstract A PARTICLE IMPACT DETECTION APPARATUS WHICH INCLUDES A TARGET FORMED OF A DIELECTRIC OR METALLIC MATERIAL, AND A SENSOR, FORMED OF AN ELECTRICALLY CONDUCTIVE MATERIAL, CONNECTED TO OR DISPOSED IN CLOSE PROXIMITY TO THE TARGET. UPON IMPACT OF A HYPERVELOCITY PARTICLE ON THE TARGET, A VOLTAGE SIGNAL APPEARS ON THE SENSOR. THE SIGNAL VARIES IN AMPLITUDE WITH THE MASS AND VELOCITY OF THE PARTICLE, AND WITH THE TARGET MATERIALS. THE APPARATUS, USED IN CONJUNCTION WITH A SECOND DETECTION APPARATUS, PROVIDES A MEANS FOR DETERMINING BOTH THE MASS AND VELOCITY OF THE IMPACTING HYPERVELOCITY PARTICLE.
Inventors
- 👤 Edward Andrew Escallier
- 👤 Charles Norman Scully
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:58
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/52; G; G01; G01P; G01P3/00; G01P3/64; G01P3/66; G01P3/665
Claims Analysis
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |