US3098970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed responsive system
Assignee: Unisys Corp
•
Filing: 1958-05-02
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Granted: 1963-07-23
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Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Harry D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:03
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/56; F; F02; F02D; F02D31/00; F02D31/001; F02D31/002; F02D41/00; F02D41/30; G01P3/44; G01P3/46; H; H02; H02P; H02P23/00; H02P23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A SPEED RESPONSIVE SYSTEM, SIGNAL GENERATING MEANS FOR PROVIDING AN A.C. OUTPUT HAVING AN AMPLITUDE WHICH VARIES IN ACCORDANCE WITH THE PRODUCT OF ITS AMPLITUDE GRADIENT WHICH IS SUSCEPTIBLE OF UNDESIRED VARIATIONS AND ITS SPEED, AND A FREQUENCY PROPORTIONAL TO SAID SPEED, MEANS RESPONSIVE TO SAID OUTPUT FOR PROVIDING A FIRST SIGNAL WHICH VARIES IN ACCORDANCE WITH THE PRODUCT OF SAID AMPLITUDE GRADIENT AND THE SQUARE O SAID SPEED, MEANS RESPONSIVE TO SAID OUTPUT FOR PROVIDING A SECOND SIGNAL WHICH VARIES IN ACCORDANCE WITH THE PRODUCT OF SAID AMPLITUDE GRADIENT AND SAID SPEED, AND MEANS INCLUDING QUOTIENTOBTAINING MEANS RESPONSIVE TO SAID FIRST AND SECOND SIGNALS FOR PROVIDING THE QUOTIENT OF SAID FIRST SIGNAL WITH RESPECT TO SAID SECOND SIGNAL TO PROVIDE A THIRD SIGNAL PROPORTIONAL TO SAID SPEED AND INDEPENDENT OF THE UNDESIRED VARIATIONS OF SAID AMPLITUDE GRADIENT.
Claim 2
Dependent Claim
139 words
IN A SPEED RESPONSIVE SYSTEM, SIGNAL GENERATING MEANS FOR PROVIDING AN A.C. OUTPUT HAVING AN AMPLITUDE WHICH VARIES IN ACCORDANCE WITH THE PRODUCT OF ITS AMPLITUDE GRADIENT WHICH IS SUSCEPTIBLE OF UNDESIRED VARIATIONS AND ITS SPEED, AND A FREQUENCY PROPORTIONAL TO SAID SPEED, MEANS RESPONSIVE TO SAID OUTPUT FOR PROVIDING A FIRST SIGNAL WHICH VARIES IN ACCORDANCE WITH THE PRODUCT OF SAID AMPLITUDE GRADIENT AND THE SQUARE O SAID SPEED, MEANS RESPONSIVE TO SAID OUTPUT FOR PROVIDING A SECOND SIGNAL WHICH VARIES IN ACCORDANCE WITH THE PRODUCT OF SAID AMPLITUDE GRADIENT AND SAID SPEED, AND MEANS INCLUDING QUOTIENTOBTAINING MEANS RESPONSIVE TO SAID FIRST AND SECOND SIGNALS FOR PROVIDING THE QUOTIENT OF SAID FIRST SIGNAL WITH RESPECT TO SAID SECOND SIGNAL TO PROVIDE A THIRD SIGNAL PROPORTIONAL TO SAID SPEED AND INDEPENDENT OF THE UNDESIRED VARIATIONS OF SAID AMPLITUDE GRADIENT.
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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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |