Patent US3217290A successfully refreshed from Google Patents.
US3217290A
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Projectile miss distance device for use on a target or the like
Assignee: INSTRUMENTFABRIKSAKTIEBOLAGET
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Filing: 1962-10-15
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Granted: 1965-11-09
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Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Ulf C I Sellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:22
CPC Classifications
F; F41; F41J; F41J5/00; F41J5/06; F41J5/12; G; G01; G01S; G01S11/00; G01S11/14; G01S3/00; G01S3/80; G01S3/802; G01S3/803; G01S3/8034; Y; Y10; Y10S; Y10S367/00; Y10S367/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A MISS DISTANCE MEASURING SYSYEM FOR INDICATING THE DISTANCE BY WHICH A PROJECTILE MISSES A TARGET COMPRISING PRESSURE SENSITIVE TRANSDUCER MEANS ON SAID TARGET RESPONSIVE TO A PRESSURE WAVE PRODUCED BY THE PASSAGE OF SAID PROJECTILE IN THE REGION OF SAID TARGET, THE OUTPUT OF SAID TRANSDUCER MEANS COMPRISING SIGNALS HAVING FREQUENCY COMPONENTS EXTENDING FROM THOSE IN THE LOW AUDIO FREQUENCY RANGE TO THOSE IN THE HIGHER AUDIO FREQUENCY RANGE, SAID SIGNALS BEING GENERATED IN RESPONSE TO SAID PRESSURE WAVE, FREQUENCY SELECTIVE FILTER MEANS COUPLED TO RECEIVE THE OUTPUT FROM SAID TRANSDUCER, SAID FILTER MEANS HAVING A FREQUENCY CHARACTERISTIC SUCH THAT THE FREQUENCIES AT THE LOWER FREQUENCY END OF THE AUDIO RANGE ARE SUBSTANTIALLY ATTENUATED WHILE SAID HIGHER FREQUENCIES PASS THROUGH SAID SUBSTANTIALLY UNATTENUATED TO THEREBY PROVIDE THE PARAMETER BY WHICH SAID INDICATION OF DISTANCE IS ACHIEVED,
Claim 2
Dependent Claim
137 words
A MISS DISTANCE MEASURING SYSYEM FOR INDICATING THE DISTANCE BY WHICH A PROJECTILE MISSES A TARGET COMPRISING PRESSURE SENSITIVE TRANSDUCER MEANS ON SAID TARGET RESPONSIVE TO A PRESSURE WAVE PRODUCED BY THE PASSAGE OF SAID PROJECTILE IN THE REGION OF SAID TARGET, THE OUTPUT OF SAID TRANSDUCER MEANS COMPRISING SIGNALS HAVING FREQUENCY COMPONENTS EXTENDING FROM THOSE IN THE LOW AUDIO FREQUENCY RANGE TO THOSE IN THE HIGHER AUDIO FREQUENCY RANGE, SAID SIGNALS BEING GENERATED IN RESPONSE TO SAID PRESSURE WAVE, FREQUENCY SELECTIVE FILTER MEANS COUPLED TO RECEIVE THE OUTPUT FROM SAID TRANSDUCER, SAID FILTER MEANS HAVING A FREQUENCY CHARACTERISTIC SUCH THAT THE FREQUENCIES AT THE LOWER FREQUENCY END OF THE AUDIO RANGE ARE SUBSTANTIALLY ATTENUATED WHILE SAID HIGHER FREQUENCIES PASS THROUGH SAID SUBSTANTIALLY UNATTENUATED TO THEREBY PROVIDE THE PARAMETER BY WHICH SAID INDICATION OF DISTANCE IS ACHIEVED,
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |