US3553636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noncontact ultrasonic interface viscosity and percent solid detecting device
Assignee: Venture Measurement Co LLC
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Filing: 1969-01-27
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Granted: 1971-01-05
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Expires: 1989-01-27
Abstract
Abstract AN INTERFACE, VISCOSITY AND PERCENT SUSPENDED SOLID ULTRASONIC DETECTING SYSTEM COMPRISING A TRANSDUCER ADAPTED TO BE AFFIXED TO THE OUTSIDE OF A CONTAINER WALL, MEANS FOR ENERGIZING THE TRANSDUCER SO THAT AN ULTRASONIC PULSE IS TRANSMITTED THROUGH THE CONTAINER WALL, ACROSS THE CONTAINER CONTENTS, AND REFLECTED OFF THE OPPOSITE CONTAINER WALL BACK TO THE TRANSDUCER, AND MEANS RESPONSIVE TO THE REFLECTED PULSE, AND DEPENDENT ON THE EXTENT OF ATTENUATION OF THE REFLECTED PULSE, FOR INDICATING THE LOCATION OF AN INTERFACE BETWEEN TWO STRATIFIED IMMISCIBLE LIQUIDS IN THE CONTAINER AND/OR FOR INDICATING THE VISCOSITY AND/OR THE PERCENT SOLIDS OF A SUSPENSION IN A CONTAINER.
Inventors
- 👤 James D Baird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:49
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/02; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2961; G01F23/2965; G01S15/04; G01S7/00; G01S7/52; G01S7/523; G01S7/526; G01S7/529; G01N; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02836
Claims Analysis
Total Claims: 0
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |