Patent US3175152A successfully refreshed from Google Patents.
US3175152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized wind speed indicating and recording system
Assignee: Individual
•
Filing: 1961-03-14
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Granted: 1965-03-23
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Franklin R Shafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/02; G01P5/06; G01P5/07; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/4802
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A WIND SPEED INDICATOR UTILIZING A SHAFT SUPPORTED ANEMOMETER, A REVOLVING MEMBER ON SAID ANEMOMETER SHAFT FOR PRODUCING LIGHT PULSES AT A FREQUENCY PROPORTIONAL TO THE WIND SPEED, PHOTOSENSITIVE MEANS TO DETECT SAID LIGHT PULSES, ELECTRONIC MEANS FOR AMPLIFICATION AND TRANSMISSION OF PULSES EMANATING FROM SAID PHOTOSENSITIVE MEANS, THE IMPROVEMENT CONSISTING OF MEANS FOR MEASURING THE FREQUENCY OF SAID PULSES COMPRISING A SOURCE OF POWER SUPPLY POTENTIAL, A SEMICONDUCTOR VARIABLE BIAS EMITTER FOLLOWER FOR SELECTING AND TRANSMITTING ONLY PULSES OF A GIVEN PEAK VALUE FROM SAID ELECTRONIC MEANS AND CONSISTING OF A TRANSISTOR HAVING ITS BASE CONNECTED TO SAID ELECTRONIC MEANS AND TO THE NEGATIVE POTENTIAL OF SAID POWER SUPPLY THROUGH A RESISTOR AND A POTENTIOMETER CONNECTED FROM THE NEGATIVE TO THE POSITIVE POTENTIAL OF SAID POWER SUPPLY, THE EMITTER OF SAID TRANSISTOR CONNECTED TO THE MOVABLE ARM OF SAID POTENTIOM-
Claim 2
Dependent Claim
142 words
IN A WIND SPEED INDICATOR UTILIZING A SHAFT SUPPORTED ANEMOMETER, A REVOLVING MEMBER ON SAID ANEMOMETER SHAFT FOR PRODUCING LIGHT PULSES AT A FREQUENCY PROPORTIONAL TO THE WIND SPEED, PHOTOSENSITIVE MEANS TO DETECT SAID LIGHT PULSES, ELECTRONIC MEANS FOR AMPLIFICATION AND TRANSMISSION OF PULSES EMANATING FROM SAID PHOTOSENSITIVE MEANS, THE IMPROVEMENT CONSISTING OF MEANS FOR MEASURING THE FREQUENCY OF SAID PULSES COMPRISING A SOURCE OF POWER SUPPLY POTENTIAL, A SEMICONDUCTOR VARIABLE BIAS EMITTER FOLLOWER FOR SELECTING AND TRANSMITTING ONLY PULSES OF A GIVEN PEAK VALUE FROM SAID ELECTRONIC MEANS AND CONSISTING OF A TRANSISTOR HAVING ITS BASE CONNECTED TO SAID ELECTRONIC MEANS AND TO THE NEGATIVE POTENTIAL OF SAID POWER SUPPLY THROUGH A RESISTOR AND A POTENTIOMETER CONNECTED FROM THE NEGATIVE TO THE POSITIVE POTENTIAL OF SAID POWER SUPPLY, THE EMITTER OF SAID TRANSISTOR CONNECTED TO THE MOVABLE ARM OF SAID POTENTIOM-
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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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |