US3572116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor wind speed and direction sensor
Assignee: Individual
•
Filing: 1969-10-24
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Granted: 1971-03-23
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Expires: 1989-10-24
Abstract
Abstract A SEMICONDUCTOR WIND SPEED AND DIRECTION SENSOR HAVING TWO CYLINDRICAL WIND DRAG UNITS ECCENTRICALLY SUPPORTED ON TORQUE RESPONSIVE STRIPS, EACH WITH THE DIAMETER IN ALIGNMENT WITH THE ECCENTRICITY AND BEING NORMAL OR AT 90* TO EACH OTHER AND WITH SILICON SEMICONDUCTOR STRAIN GAGES MOUNTED ON THE TORQUE RESPONSIVE MATERIAL STRIPS TO SENSE AND PRODUCE ELECTRIC SIGNALS REPRESENTATIVE OF DRAG UNIT TORQUE MOVEMENT IN RESPONSE TO AND PROPORTIONAL TO THE WIND DIRECTION AND THE SQUARE OF WIND VELOCITY.
Inventors
- 👤 John E Penn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:53
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/02; G01P5/00; G01P5/02; G01P5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |