Patent US3228558A successfully refreshed from Google Patents.
US3228558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring device
Assignee: Individual
•
Filing: 1964-07-30
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Granted: 1966-01-11
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Expires: 1984-07-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Doyle
- 👤 Frank A Burgett
- 👤 Sauers Dale George
- 👤 Robert M Bernardin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:06
CPC Classifications
G; G01; G01F; G01F23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
AN ENCLOSURE HAVING A MOVABLE, IMPERVIOUS WALL THEREIN SEPARATING IT INTO MUTUALLY EXCLUDED FIRST AND SECOND SECTIONS; ENTRY MEANS IN SAID FIRST SECTION FOR INJECTING A FLUID THEREIN TO THEREBY CAUSE MOVEMTNT OF SAID WALL IN THE DIRECTION OF SAID SECOND SECTION; EXIT MEANS IN SAID SECOND SECTION SO THAT FLUID MAY BE EXPELLED THEREFROM DUE TO MOVEMENT OF SAID WALL, THE IMPROVEMENT CONSISTING OF: MEANS FOR MEASURING THE QUANTITY OF FLUID IN SAID ENCLOSURE, SAID MEANS FOR MEASURING COMPRISING A TRANSDUCER AND POTENTIOMETER, SAID TRANSDUCER INCLUDING A PULLEY MOUNT MEANS MOUNTED TO SAID FIRST SECTION AND A ROTATABLE TRANSDUCER SHAFT SUPPORTED IN SAID PULLEY MOUNT MEANS, A PULLEY ROTATABLY MOUNTED ON SAID PULLEY MOUNT MEANS, MEANS CONNECTING SAID PULLEY TO SAID MOVABLE WALL, MEANS FIXEDLY HOLDING THE PULLEY TO THE ROTATABLE TRANSDUCER SHAFT, AND MEANS FOR TRANSMITTING SHAFT MOVEMENT TO SAID POTENTIOMETER SO THAT MOVEMENT OF THE WALL CAUSES THE TRANSDUCER SHAFT TO ROTATE, THEREBY VARYING THE VOLTAGE FROM THE POTENTIOMETER.
Claim 2
Dependent Claim
162 words
AN ENCLOSURE HAVING A MOVABLE, IMPERVIOUS WALL THEREIN SEPARATING IT INTO MUTUALLY EXCLUDED FIRST AND SECOND SECTIONS; ENTRY MEANS IN SAID FIRST SECTION FOR INJECTING A FLUID THEREIN TO THEREBY CAUSE MOVEMTNT OF SAID WALL IN THE DIRECTION OF SAID SECOND SECTION; EXIT MEANS IN SAID SECOND SECTION SO THAT FLUID MAY BE EXPELLED THEREFROM DUE TO MOVEMENT OF SAID WALL, THE IMPROVEMENT CONSISTING OF: MEANS FOR MEASURING THE QUANTITY OF FLUID IN SAID ENCLOSURE, SAID MEANS FOR MEASURING COMPRISING A TRANSDUCER AND POTENTIOMETER, SAID TRANSDUCER INCLUDING A PULLEY MOUNT MEANS MOUNTED TO SAID FIRST SECTION AND A ROTATABLE TRANSDUCER SHAFT SUPPORTED IN SAID PULLEY MOUNT MEANS, A PULLEY ROTATABLY MOUNTED ON SAID PULLEY MOUNT MEANS, MEANS CONNECTING SAID PULLEY TO SAID MOVABLE WALL, MEANS FIXEDLY HOLDING THE PULLEY TO THE ROTATABLE TRANSDUCER SHAFT, AND MEANS FOR TRANSMITTING SHAFT MOVEMENT TO SAID POTENTIOMETER SO THAT MOVEMENT OF THE WALL CAUSES THE TRANSDUCER SHAFT TO ROTATE, THEREBY VARYING THE VOLTAGE FROM THE POTENTIOMETER.
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |