Patent US3119259A successfully refreshed from Google Patents.
US3119259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airspeed meter
Assignee: M Ten Bosch Inc
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Filing: 1958-10-24
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Granted: 1964-01-28
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Expires: 1978-10-24
Abstract
No abstract record available.
Inventors
- 👤 Bosch Maurits Ten
- 👤 Donald S Bayley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:12
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A TRUE AIRSPEED METER FOR HELICOPTERS AND AIRBORNE VEHICLES FOR MEASURING VELOCITIES RANGING FROM 0 TO 185 KNOTS AS WELL AS UP TO 200 TO 300 KNOTS IN ANY DIRECTION WHETHER FORWARD, REVERSE, TO EITHER SIDE, OR HOVERING, COMPRISING A PLURALITY OF CLOSELY SPACED PLATES FORMING A FLAT NARROW AIR SPACE THROUGH WHICH THE AIR IS CAUSED TO FLOW, MEANS TO CREATE A MAGNETIC FIELD ACROSS SAID SPACE AND MEANS TO IONIZE THE AIR WHILE SO FLOWING, A PLURALITY OF ELECTRODES SET UP IN THE AIRSTREAM ADJACENT TO THE IONIZED AND MAGNETIC ZONES AND MEANS TO MEASURE THE VOLTAGE INDUCED BY THE MOVING IONIZED AIRSTREAM ACROSS THE ELECTRODES, SAID MEANS TO IONIZE THE AIR CONSISTING OF A SURFACING OF RADIOACTIVE MATERIAL ON EACH SIDE OF THE STREAM OF AIR.
Claim 2
Dependent Claim
129 words
A TRUE AIRSPEED METER FOR HELICOPTERS AND AIRBORNE VEHICLES FOR MEASURING VELOCITIES RANGING FROM 0 TO 185 KNOTS AS WELL AS UP TO 200 TO 300 KNOTS IN ANY DIRECTION WHETHER FORWARD, REVERSE, TO EITHER SIDE, OR HOVERING, COMPRISING A PLURALITY OF CLOSELY SPACED PLATES FORMING A FLAT NARROW AIR SPACE THROUGH WHICH THE AIR IS CAUSED TO FLOW, MEANS TO CREATE A MAGNETIC FIELD ACROSS SAID SPACE AND MEANS TO IONIZE THE AIR WHILE SO FLOWING, A PLURALITY OF ELECTRODES SET UP IN THE AIRSTREAM ADJACENT TO THE IONIZED AND MAGNETIC ZONES AND MEANS TO MEASURE THE VOLTAGE INDUCED BY THE MOVING IONIZED AIRSTREAM ACROSS THE ELECTRODES, SAID MEANS TO IONIZE THE AIR CONSISTING OF A SURFACING OF RADIOACTIVE MATERIAL ON EACH SIDE OF THE STREAM OF AIR.
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |