Patent US3155844A successfully refreshed from Google Patents.
US3307407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micro-particle impact sensing apparatus
Assignee: Individual
•
Filing: 1964-07-30
•
Granted: 1967-03-07
•
Expires: 1984-07-30
Abstract
No abstract record available.
Inventors
- 👤 Otto E Berg
- 👤 Alexander Wesley Merle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:04
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
APPARATUS FOR DETECTING THE RELATIVE KINETIC ENERGY LEVELS OF IMPINGING MICROMETEORITIES, SAID APPARATUS CONSISTING OF A CONDUCTIVE SURFACE, A THIN FILM OF NORMALLY NON-CONDUCTING METALLIC OXIDE DEPOSITED ON SAID CONDUCTIVE SURFACE, A TARGET AREA COMPRISING A THIN FILM OF CONDUCTIVE MATERIAL DEPOSITED ON SAID METALLIC OXIDE FILM OPPOSITE TO SAID CONDUCTIVE SURFACE, SAID METALLIC OXIDE FILM CHARACTERIZED IN THAT IT MOMENTARILY PROVIDES INCREASED CONDUCTIVITY IN AREAS LOCALLY HEATED AS A RESULT OF PRESSURE WAVES GENERATED BY MICROMETEORITES IMPINGING ON SAID TARGET AREA, AND CIRCUIT MEANS FOR APPLYING AN ELECTRICAL POTENTIAL BETWEEN SAID CONDUCTIVE SURFACE AND SAID TARGET AREA AND RESPONSIVE TO POTENTIAL VARIATIONS RESULTING FROM SAID MOMENTARILY INCREASED CONDUCTIVITY, THE RELATIVE AMPLITUDE OF SAID POTENTIAL VARIATIONS BEING INDICATIVE OF THE RELATIVE KINETIC ENERGY OF IMPINGING MICROMETEORITES.
Claim 2
Dependent Claim
126 words
APPARATUS FOR DETECTING THE RELATIVE KINETIC ENERGY LEVELS OF IMPINGING MICROMETEORITIES, SAID APPARATUS CONSISTING OF A CONDUCTIVE SURFACE, A THIN FILM OF NORMALLY NON-CONDUCTING METALLIC OXIDE DEPOSITED ON SAID CONDUCTIVE SURFACE, A TARGET AREA COMPRISING A THIN FILM OF CONDUCTIVE MATERIAL DEPOSITED ON SAID METALLIC OXIDE FILM OPPOSITE TO SAID CONDUCTIVE SURFACE, SAID METALLIC OXIDE FILM CHARACTERIZED IN THAT IT MOMENTARILY PROVIDES INCREASED CONDUCTIVITY IN AREAS LOCALLY HEATED AS A RESULT OF PRESSURE WAVES GENERATED BY MICROMETEORITES IMPINGING ON SAID TARGET AREA, AND CIRCUIT MEANS FOR APPLYING AN ELECTRICAL POTENTIAL BETWEEN SAID CONDUCTIVE SURFACE AND SAID TARGET AREA AND RESPONSIVE TO POTENTIAL VARIATIONS RESULTING FROM SAID MOMENTARILY INCREASED CONDUCTIVITY, THE RELATIVE AMPLITUDE OF SAID POTENTIAL VARIATIONS BEING INDICATIVE OF THE RELATIVE KINETIC ENERGY OF IMPINGING MICROMETEORITES.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |