US3251223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the electronic measurement of mechanical power
Assignee: US Philips Corp
•
Filing: 1963-06-06
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Granted: 1966-05-17
•
Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Barg Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:49
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
APPARATUS FOR MEASURING THE MECHANICAL POWER OF A ROTATING SHAFT COMPRISING PULSE GENERATING MEANS RESPONSIVE TO THE SHAFT MOVEMENT FOR PRODUCING ELECTRICAL PULSES OF CONSTANT AMPLITUDE AND DURATION AND HAVING A REPETITION FREQUENCY PROPORTIONAL TO THE SHAFT SPEED, MEANS ATTACHED TO SAID SHAFT FOR PRODUCING A DIRECT VOLTAGE WHICH IS PROPORTIONAL TO THE TORQUE OF SAID SHAFT, MEANS FOR COMBINING SAID PULSES PRODUCED WITH SAID DIRECT VOLTAGE TO PROVIDE A TRAIN OF PULSES WHOSE AMPLITUDE IS PROPORTIONAL TO SAID DIRECT VOLTAGE AND WHOSE FREQUENCY IS PROPORTIONAL TO SHAFT SPEED, AND MEANS COUPLED TO SAID COMBINING MEANS FOR MEASURING THE MEAN DIRECT CURRENT VALUE OF SAID TRAIN OF PULSES.
Claim 2
Dependent Claim
108 words
APPARATUS FOR MEASURING THE MECHANICAL POWER OF A ROTATING SHAFT COMPRISING PULSE GENERATING MEANS RESPONSIVE TO THE SHAFT MOVEMENT FOR PRODUCING ELECTRICAL PULSES OF CONSTANT AMPLITUDE AND DURATION AND HAVING A REPETITION FREQUENCY PROPORTIONAL TO THE SHAFT SPEED, MEANS ATTACHED TO SAID SHAFT FOR PRODUCING A DIRECT VOLTAGE WHICH IS PROPORTIONAL TO THE TORQUE OF SAID SHAFT, MEANS FOR COMBINING SAID PULSES PRODUCED WITH SAID DIRECT VOLTAGE TO PROVIDE A TRAIN OF PULSES WHOSE AMPLITUDE IS PROPORTIONAL TO SAID DIRECT VOLTAGE AND WHOSE FREQUENCY IS PROPORTIONAL TO SHAFT SPEED, AND MEANS COUPLED TO SAID COMBINING MEANS FOR MEASURING THE MEAN DIRECT CURRENT VALUE OF SAID TRAIN OF PULSES.
References Cited (Backward Citations)
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Cited
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Cited
US3000569A
Cited
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Cited
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Cited
GB861353A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |