Patent US3266291A successfully refreshed from Google Patents.
US3266291A
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Piezo crystal fluid analyzer
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1962-10-29
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Granted: 1966-08-16
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Jr William H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:22
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/02; G01N29/036; G01N2291/00; G01N2291/02; G01N2291/025; G01N2291/0256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN AN ANALYZER COMPRISING IN COMBINATION, A FIRST DETECTION DEVICE HAVING A PIEZOELECTRIC ELEMENT BEARING A SUBSTRATE WHICH INTERACTS WITH ONE COMPONENT OF A FLUID BEING ANALYZED; A SECOND DETECTION DEVICE HAVING A PIEZOELECTRIC ELEMENT WHICH DOES NOT SUBSTANTIALLY INTERACT WITH SAID COMPONENT; A FIRST OSCILLATING CIRCUIT MEANS FOR OSCILLATING ONE OF SAID DETECTION DEVICES; A SECOND OSCILLATING CIRCUIT MEANS FOR OSCILLATING THE OTHER OF SAID DETECTION DEVICES; INDICATING MEANS TO COMPARE THE OSCILLATIONS OF SAID FIRST AND SECOND OSCILLATING CIRCUIT MEANS WHEREBY THE NET OSCILLATIONS ARE DETERMINED; THE IMPROVEMENT COMPRISING A VARIABLE CIRCUIT ELEMENT OPERATIVELY CONNECTED IN ONE OF SAID OSCILLATING CIRCUIT MEANS TO CHANGE THE FREQUENCY OF OSCILLATION OF SAID OSCILLATING CIRCUIT MEANS IN RESPONSE TO A CHANGE IN THE MAGNITUDE OF SAID VARIABLE CIRCUIT ELEMENT.
Claim 2
Dependent Claim
128 words
IN AN ANALYZER COMPRISING IN COMBINATION, A FIRST DETECTION DEVICE HAVING A PIEZOELECTRIC ELEMENT BEARING A SUBSTRATE WHICH INTERACTS WITH ONE COMPONENT OF A FLUID BEING ANALYZED; A SECOND DETECTION DEVICE HAVING A PIEZOELECTRIC ELEMENT WHICH DOES NOT SUBSTANTIALLY INTERACT WITH SAID COMPONENT; A FIRST OSCILLATING CIRCUIT MEANS FOR OSCILLATING ONE OF SAID DETECTION DEVICES; A SECOND OSCILLATING CIRCUIT MEANS FOR OSCILLATING THE OTHER OF SAID DETECTION DEVICES; INDICATING MEANS TO COMPARE THE OSCILLATIONS OF SAID FIRST AND SECOND OSCILLATING CIRCUIT MEANS WHEREBY THE NET OSCILLATIONS ARE DETERMINED; THE IMPROVEMENT COMPRISING A VARIABLE CIRCUIT ELEMENT OPERATIVELY CONNECTED IN ONE OF SAID OSCILLATING CIRCUIT MEANS TO CHANGE THE FREQUENCY OF OSCILLATION OF SAID OSCILLATING CIRCUIT MEANS IN RESPONSE TO A CHANGE IN THE MAGNITUDE OF SAID VARIABLE CIRCUIT ELEMENT.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |