Patent US3304497A successfully refreshed from Google Patents.
US3304497A
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US
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Measuring system wherein time-voltage signals are converted to proportional pulse frequency signals for storage, detection, and integration
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-04-03
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Granted: 1967-02-14
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Macritchie
- 👤 John J Heigl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:33
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01N; G01N30/00; G01N30/02; G01N30/86; G01N30/8603; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN INTEGRATOR CONTROL SYSTEM COMPRISING IN COMBINATION (A) A SOURCE OF VARIABLE VOLTAGE; (B) MEANS FOR CONVERTING SAID VARIABLE VOLTAGE INTO PROPORTIONAL FREQUENCY PULSATIONS; (C) A FIRST AND A SECOND SENSING MEANS RESPONSIVE TO SAID FREQUENCY PULSATIONS AT TWO DIFFERENT POINTS IN TIME; (D) A FIRST COUNTING MEANS FOR MEASURING THE NUMBER OF PULSATIONS DETECTED BY THE FIRST OF SAID SENSING MEANS; (E) A SECOND COUNTING MEANS FOR MEASURING THE NUMBER PULSATIONS DETECTED BY THE SECOND SAID SENSING MEANS; (F) A LOGIC CIRCUIT FOR DETERMINING THE RATIO OF THE TOTAL
Claim 2
Dependent Claim
90 words
AN INTEGRATOR CONTROL SYSTEM COMPRISING IN COMBINATION (A) A SOURCE OF VARIABLE VOLTAGE; (B) MEANS FOR CONVERTING SAID VARIABLE VOLTAGE INTO PROPORTIONAL FREQUENCY PULSATIONS; (C) A FIRST AND A SECOND SENSING MEANS RESPONSIVE TO SAID FREQUENCY PULSATIONS AT TWO DIFFERENT POINTS IN TIME; (D) A FIRST COUNTING MEANS FOR MEASURING THE NUMBER OF PULSATIONS DETECTED BY THE FIRST OF SAID SENSING MEANS; (E) A SECOND COUNTING MEANS FOR MEASURING THE NUMBER PULSATIONS DETECTED BY THE SECOND SAID SENSING MEANS; (F) A LOGIC CIRCUIT FOR DETERMINING THE RATIO OF THE TOTAL
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |