US2559436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring liquid contents of tanks
Assignee: Corex Ltd
•
Filing: 1947-07-30
•
Granted: 1951-07-03
•
Expires: 1967-07-30
Abstract
No abstract record available.
Inventors
- 👤 Isserstedt Siegfried Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:53
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/165; G01F23/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A DEVICE FOR MEASURING FLUID DEPTH WITH INCREASED ACCURACY COMPRISING, TWO GAS LINES, EACH OPERABLY CONNECTED TO GAS PRESSURE MEASURING MEANS, AND TO EACH OF WHICH COMPRESSED GAS IS SUPPLIABLE THROUGH A RESTRICTION, SAID GAS LINES TERMINATING AT A FIXED POSITION IN A FLUID CONTAINER, THE FIRST OF SAID GAS LINES BEING FREE OF OPENINGS OVER ITS ENTIRE LENGTH, AND THE SECOND OF SAID GAS LINES HAVING A PLURALITY OF UNIFORMLY AXIALLY SPACED OPENINGS, SAID OPENINGS BEING NORMALLY CLOSED BY FLUID IMMERSION OPERABLE VALVE MEANS WHEREBY, UPON OPERATION WHEN SAID FLUID CONTAINER CONTAINS FLUID, THE PRESSURE MEASURING MEANS CONNECTED TO SAID FIRST GAS LINE WILL INDICATE LARGE UNIT FUNCTIONS OF THE FLUID DEPTH, AND
Claim 2
Independent Claim
114 words
A DEVICE FOR MEASURING FLUID DEPTH WITH INCREASED ACCURACY COMPRISING, TWO GAS LINES, EACH OPERABLY CONNECTED TO GAS PRESSURE MEASURING MEANS, AND TO EACH OF WHICH COMPRESSED GAS IS SUPPLIABLE THROUGH A RESTRICTION, SAID GAS LINES TERMINATING AT A FIXED POSITION IN A FLUID CONTAINER, THE FIRST OF SAID GAS LINES BEING FREE OF OPENINGS OVER ITS ENTIRE LENGTH, AND THE SECOND OF SAID GAS LINES HAVING A PLURALITY OF UNIFORMLY AXIALLY SPACED OPENINGS, SAID OPENINGS BEING NORMALLY CLOSED BY FLUID IMMERSION OPERABLE VALVE MEANS WHEREBY, UPON OPERATION WHEN SAID FLUID CONTAINER CONTAINS FLUID, THE PRESSURE MEASURING MEANS CONNECTED TO SAID FIRST GAS LINE WILL INDICATE LARGE UNIT FUNCTIONS OF THE FLUID DEPTH, AND
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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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |