Velocity indication device with zero speed detection capability
Abstract
Abstract THIS INVENTION RELATES TO A PULSE GENERATOR FOR PRODUCING ELECTRICAL PULSES WHERE A ROTOR, POSSESSING FLUX DISTRIBUTION QUALITIES SUCH THAT THERE EXISTS AT LEAST ONE REGION OF HIGH FLUX DENSITY SOURROUNDED BY REGIONS OF LOW FLUX DENSITY WHEN IN THE PRESENCE OF A MAGNETIC FIELD, IS ROTATED IN THE VICINITY OF AN INDUCTOR MEANS. THE ROTOR INCLUDES AT LEAST ONE MAGNETIC MEANS WHICH DEFINES ONE OF THE REGIONS OF HIGH FLUX DENSITY. THE INDUCTOR MEANS HAS INPUT AN OUTPUT TERMINALS. A SIGNAL IS IMPRESSED ON THE INPUT TERMINALS. UPON ROTOR ROTATION, ELECTRICAL PULSES APPEAR AT THE OUTPUT TERMINALS OF THE INDUCTOR MEANS. AN OUTPUT SIGNAL FOR ANY ROTATIONAL SPEED IS ATTAINED WHEN THE INDUCTOR MEANS IS A SATURABLE INDUCTOR. THE PULSE GENERATOR IS EXTREMELY COMPACT, SIMPLE IN MECHANICAL LAYOUT, AND HAS HIGH RESOLUTION PROPERTIES.
Inventors
- 👤 Reed H Grundy
Bibliographic Details
Claims Analysis
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |