US3372592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-wire mechanical wave depth gauge
Assignee: MMC International Corp
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Filing: 1966-08-22
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Granted: 1968-03-12
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Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 William H Gravert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:02
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2962; G01F23/30; G01F23/64; Y; Y10; Y10S; Y10S367/00; Y10S367/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
MEANS FOR MEASURING THE DISTANCE OF THE SURFACE OF THE LIQUID FROM A REFERENCE POINT ABOVE THE LIQUID SURFACE COMPRISING (A) TRANSDUCER MEANS FOR PRODUCING MECHANICAL PULSES, (B) SMOOTH SINGLE FILAMENT ELONGATED SONIC CONDUCTOR MEANS SUPPLIED WITH PULSES BY SAID TRANSDUCER MEANS FOR TRANSMITTING SAID PULSES FROM THE REFERENCE POINT TO THE SURFACE OF THE LIQUID WITHOUT PRODUCING SIGNIFICANT REFLECTIONS IN SAID CONDUCTOR MEANS, (C) SONIC REFLECTION MEANS AT THE LIQUID SURFACE FOR REFLECTING AN APPRECIABLE PORTION OF THE PULSE ENERGY BACK ALONG SAID SONIC CONDUCTOR MEANS, (D) AND MEANS FOR MEASURING THE TIME OF TRAVEL OF SAID PULSES FROM SAID REFERENCE POINT TO SAID SURFACE AND BACK TO SAID REFERENCE POINT AS AN INDICATION OF THE DISTANCE OF SAID SURFACE FROM THE REFERENCE POINT.
Claim 2
Dependent Claim
125 words
MEANS FOR MEASURING THE DISTANCE OF THE SURFACE OF THE LIQUID FROM A REFERENCE POINT ABOVE THE LIQUID SURFACE COMPRISING (A) TRANSDUCER MEANS FOR PRODUCING MECHANICAL PULSES, (B) SMOOTH SINGLE FILAMENT ELONGATED SONIC CONDUCTOR MEANS SUPPLIED WITH PULSES BY SAID TRANSDUCER MEANS FOR TRANSMITTING SAID PULSES FROM THE REFERENCE POINT TO THE SURFACE OF THE LIQUID WITHOUT PRODUCING SIGNIFICANT REFLECTIONS IN SAID CONDUCTOR MEANS, (C) SONIC REFLECTION MEANS AT THE LIQUID SURFACE FOR REFLECTING AN APPRECIABLE PORTION OF THE PULSE ENERGY BACK ALONG SAID SONIC CONDUCTOR MEANS, (D) AND MEANS FOR MEASURING THE TIME OF TRAVEL OF SAID PULSES FROM SAID REFERENCE POINT TO SAID SURFACE AND BACK TO SAID REFERENCE POINT AS AN INDICATION OF THE DISTANCE OF SAID SURFACE FROM THE REFERENCE POINT.
References Cited (Backward Citations)
US3208281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |