US3260101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calibration method
Assignee: ONGARO DYNAMIC IND Inc
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Filing: 1962-09-04
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Granted: 1966-07-12
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Ongaro Theodore
- 👤 Eugene R Lucka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:00
CPC Classifications
G; G01; G01P; G01P21/00; G01P21/02; A; A61; A61B; A61B5/00; A61B5/02; A61B5/024
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
154 words
IN COMBINATION A TACHOMETER FOR INDICATING THE NUMBER OF EVENTS OCCURRING IN A UNIT OF TIME COMPRISING MEANS FOR DETECTING SAID EVENTS, MEANS FOR CONVERTING EACH EVENT INTO AN ELECTRICAL PULSE, MEANS FOR AVERAGING THE CURRENT OF SAID PULSES, MEANS FOR CONVERTING SAID CURRENT INTO AN INDICATON OF THE FREQUENCY OF OCCURRENCE OF SAID PULSES, AND MEANS FOR VARYING SAID INDICATION; A CALIBRATION INSTRUMENT FOR DETERMINING THE ACCURACY OF SAID TACHOMETER COMPRISING, A CONSTANT ALTERNATING SIGNAL SOURCE, MEANS FOR CONVERTING SAID SIGNAL INTO A POSITIVE AND NEGATIVE PULSE FOR EACH CYCLE, MEANS FOR DOUBLING SAID PULSES, MEANS FOR COMBINING SAID PULSES AND MEANS FOR INVERTING SAID POSITIVE OR NEGATIVE PULSES TO PULSES OF LIKE POLARITY; MEANS FOR DISCONNECTING SAID EVENTS TO SAID DETECTING MEANS AND FOR CONNECTING SAID STANDARD FREQUENCY CALIBRATION PULSES TO SAID DETECTING MEANS, AND MEANS FOR CORRELATING SAID TACHOMETER FREQUENCY INDICATION WITH THE PULSE REPETITION FREQUENCY OF SAID STANDARD CALIBRATION PULSES.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |