US3196346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft speed indicator employing rotating bearing members
Assignee: Individual
•
Filing: 1961-01-17
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Granted: 1965-07-20
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Expires: 1981-01-17
Abstract
No abstract record available.
Inventors
- 👤 Inoue Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:18
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
MEANS TO MEASURE SHAFT SPEED OVER A PREDETERMINED RANGE, INCLUDING A PLURALITY OF BEARINGS HAVING ROUND BEARING ELEMENTS THEREIN, SAID BEARINGS RESPECTIVELY INCORPORATING DIFFERENT MATERIALS THEREIN SO THAT THEIR ELECTRICAL RESISTANCES VARY MOST RAPIDLY AS A FUNCTION OF SHAFT SPEED IN RESPECTIVELY DIFFERENT PORTIONS OF SAID RANGE, AND ELECTRIC-CIRCUIT MEANS OPERABLE TO MEASURE THE ELECTRICRESISTANCE VARIATIONS OF ONE SUCH BEARING IN ONE PORTION OF THE RANGE AND THE ELECTRIC RESISTANCE VARIATIONS OF ANOTHER SUCH BEARING IN A DIFFERENT PORTIONN OF THE RANGE.
Claim 2
Dependent Claim
82 words
MEANS TO MEASURE SHAFT SPEED OVER A PREDETERMINED RANGE, INCLUDING A PLURALITY OF BEARINGS HAVING ROUND BEARING ELEMENTS THEREIN, SAID BEARINGS RESPECTIVELY INCORPORATING DIFFERENT MATERIALS THEREIN SO THAT THEIR ELECTRICAL RESISTANCES VARY MOST RAPIDLY AS A FUNCTION OF SHAFT SPEED IN RESPECTIVELY DIFFERENT PORTIONS OF SAID RANGE, AND ELECTRIC-CIRCUIT MEANS OPERABLE TO MEASURE THE ELECTRICRESISTANCE VARIATIONS OF ONE SUCH BEARING IN ONE PORTION OF THE RANGE AND THE ELECTRIC RESISTANCE VARIATIONS OF ANOTHER SUCH BEARING IN A DIFFERENT PORTIONN OF THE RANGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |