US3089029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the rolling resistance of a car
Assignee: Westinghouse Air Brake Co
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Filing: 1958-04-09
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Granted: 1963-05-07
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Expires: 1978-04-09
Abstract
No abstract record available.
Inventors
- 👤 Emil F Brinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:45
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/16; B; B61; B61L; B61L17/00; B61L17/02; B61L17/023; G01S; G01S13/00; G01S13/88; G01S13/91; G01S13/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
MEANS FOR MEASURING THE ACCELERATION OF A MOVING BODY, COMPRISING, IN COMBINATION, RADAR MEANS FOR OBTAINING A FIRST SIGNAL FROM THE BODY HAVING A FREQUENCY PROPORTIONAL TO THE VELOCITY OF THE BODY AT A FIRST INSTANT, MEANS FOR RECORDING SAID FIRST SIGNAL, MEANS OPERATIVELY CONNECTED TO SAID RECORDING MEANS FOR OBTAINING A REPRODUCED FIRST SIGNAL AT A SECOND INSTANT A PREDETERMINED TIME INTERVAL AFTER THE FIRST INSTANT, SAID RADAR MEANS ALSO SUPPLYING A SECOND SIGNAL AT SAID SECOND INSTANT, AND MEANS FOR COMPRISING THE FREQUENCIES OF THE SECOND SIGNAL AND THE REPRODUCED FIRST SIGNAL TO PROVIDE A MEASUREMENT OF ACCELERATION.
Claim 2
Dependent Claim
100 words
MEANS FOR MEASURING THE ACCELERATION OF A MOVING BODY, COMPRISING, IN COMBINATION, RADAR MEANS FOR OBTAINING A FIRST SIGNAL FROM THE BODY HAVING A FREQUENCY PROPORTIONAL TO THE VELOCITY OF THE BODY AT A FIRST INSTANT, MEANS FOR RECORDING SAID FIRST SIGNAL, MEANS OPERATIVELY CONNECTED TO SAID RECORDING MEANS FOR OBTAINING A REPRODUCED FIRST SIGNAL AT A SECOND INSTANT A PREDETERMINED TIME INTERVAL AFTER THE FIRST INSTANT, SAID RADAR MEANS ALSO SUPPLYING A SECOND SIGNAL AT SAID SECOND INSTANT, AND MEANS FOR COMPRISING THE FREQUENCIES OF THE SECOND SIGNAL AND THE REPRODUCED FIRST SIGNAL TO PROVIDE A MEASUREMENT OF ACCELERATION.
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |