US3100885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic liquid level gauge
Assignee: Gulton Industries Inc
•
Filing: 1961-08-14
•
Granted: 1963-08-13
•
Expires: 1981-08-14
Abstract
No abstract record available.
Inventors
- 👤 Welkowitz Walter
- 👤 Hugo E Dahlke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; Y; Y10; Y10S; Y10S367/00; Y10S367/902; Y10S367/908; Y10S73/00; Y10S73/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN ULTRASONIC MEASURING SYSTEM FOR MEASURING A VARIABLE IN A MEDIUM WHICH IS TO BE INDEPENDENT OF THE DENSITY THEREOF, SAID SYSTEM INCLUDING AN INFORMATION MEASURING SECTION INCLUDING FIRST ULTRASONIC WAVE TRANSMITTING AND RECEIVING MEANS WHICH PROVIDE AN INFORMATION SIGNAL WHICH IS A MEASURE OF SAID VARIABLE AND THE DENSITY OF SAID MEDIUM, AND A CORRECTION MEASURING SECTION INCLUDING SECOND ULTRASONIC WAVE TRANSMITTING AND RECEIVING MEANS WHICH PROVIDE A CORRECTION SIGNAL OF THE SAME KIND AS SAID INFORMATION SIGNAL AND WHICH IS SUBSTANTIALLY INDEPENDENT OF SAID VARIABLE BUT DEPENDENT ON SAID MEDIUM DENSITY, AND MEANS FOR INDICATING THE VALUE OF SAID VARIABLE COMPRISING DIVIDER MEANS RESPONSIVE TO SAID INFORMA-
Claim 2
Dependent Claim
109 words
AN ULTRASONIC MEASURING SYSTEM FOR MEASURING A VARIABLE IN A MEDIUM WHICH IS TO BE INDEPENDENT OF THE DENSITY THEREOF, SAID SYSTEM INCLUDING AN INFORMATION MEASURING SECTION INCLUDING FIRST ULTRASONIC WAVE TRANSMITTING AND RECEIVING MEANS WHICH PROVIDE AN INFORMATION SIGNAL WHICH IS A MEASURE OF SAID VARIABLE AND THE DENSITY OF SAID MEDIUM, AND A CORRECTION MEASURING SECTION INCLUDING SECOND ULTRASONIC WAVE TRANSMITTING AND RECEIVING MEANS WHICH PROVIDE A CORRECTION SIGNAL OF THE SAME KIND AS SAID INFORMATION SIGNAL AND WHICH IS SUBSTANTIALLY INDEPENDENT OF SAID VARIABLE BUT DEPENDENT ON SAID MEDIUM DENSITY, AND MEANS FOR INDICATING THE VALUE OF SAID VARIABLE COMPRISING DIVIDER MEANS RESPONSIVE TO SAID INFORMA-
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |