Patent US3072901A successfully refreshed from Google Patents.
US3072901A
Expired / Lapsed
US
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Doppler frequency speed measuring apparatus
Assignee: Telefunken AG
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Filing: 1958-10-14
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Granted: 1963-01-08
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Expires: 1978-10-14
Abstract
No abstract record available.
Inventors
- 👤 Ruppersberg Hans-Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:57
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G01; G01P; G01P13/00; G01P13/02; G01P13/04; G01S; G01S11/00; G01S11/02; G01S11/10; G01S13/00; G01S13/88; G01S13/91; G01S13/92; G08G1/052; G08G1/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
DOPPLER FREQUENCY APPARATUS FOR MEASURING THE SPEEDS OF OBJECTS, COMPRISING TRANSMITTING MEANS FOR PROPAGATING WAVES IN AN ANTENNA PATTERN TOWARD A MOVING OBJECT; RECEIVING MEANS FOR PICKING UP REFLECTED COMPONENTS OF SAID WAVES; MIXING MEANS FOR COMPARING THE OUTGOING AND REFLECTED WAVES AND DELIVERING A DOPPLER FREQUENCY PROPORTIONAL TO THE DIFFERENCE IN THE FREQUENCIES OF THE COMPARED WAVES; AND DOPPLER FREQUENCY INDICATING MEANS COMPRISING A PLURALITY OF SEPARATE REEDS TUNED TO VIBRATE AT DIFFERENT NATURAL FREQUENCIES EACH INDICATIVE OF A DIFFERENT DOPPLER FREQUENCY AND CALIBRATED IN TERMS OF SPEEDS OF THE OBJECT, EXCITING MEANS OPERATIVELY ASSOCIATED WITH ALL OF THE REEDS AND CONNECTED TO SAID MIXING MEANS TO RECEIVE SAID DOPPLER FREQUENCIES; AT LEAST ONE SWITCH MEANS EACH HAVING CONTACTS LOCATED ADJACENT AND CLOSED BY VIBRATION OF AN ASSOCIATED REED, AND INDICATOR MEANS CONNECTED WITH SAID CONTACTS TO INDICATE CLOSING THEREOF BY VIBRATORY MOTION OF THE ASSOCIATED REED.
Claim 2
Dependent Claim
148 words
DOPPLER FREQUENCY APPARATUS FOR MEASURING THE SPEEDS OF OBJECTS, COMPRISING TRANSMITTING MEANS FOR PROPAGATING WAVES IN AN ANTENNA PATTERN TOWARD A MOVING OBJECT; RECEIVING MEANS FOR PICKING UP REFLECTED COMPONENTS OF SAID WAVES; MIXING MEANS FOR COMPARING THE OUTGOING AND REFLECTED WAVES AND DELIVERING A DOPPLER FREQUENCY PROPORTIONAL TO THE DIFFERENCE IN THE FREQUENCIES OF THE COMPARED WAVES; AND DOPPLER FREQUENCY INDICATING MEANS COMPRISING A PLURALITY OF SEPARATE REEDS TUNED TO VIBRATE AT DIFFERENT NATURAL FREQUENCIES EACH INDICATIVE OF A DIFFERENT DOPPLER FREQUENCY AND CALIBRATED IN TERMS OF SPEEDS OF THE OBJECT, EXCITING MEANS OPERATIVELY ASSOCIATED WITH ALL OF THE REEDS AND CONNECTED TO SAID MIXING MEANS TO RECEIVE SAID DOPPLER FREQUENCIES; AT LEAST ONE SWITCH MEANS EACH HAVING CONTACTS LOCATED ADJACENT AND CLOSED BY VIBRATION OF AN ASSOCIATED REED, AND INDICATOR MEANS CONNECTED WITH SAID CONTACTS TO INDICATE CLOSING THEREOF BY VIBRATORY MOTION OF THE ASSOCIATED REED.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |