US3347097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maximum-minimum depth gage
Assignee: Individual
•
Filing: 1965-02-26
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Granted: 1967-10-17
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Expires: 1985-02-26
Abstract
No abstract record available.
Inventors
- 👤 John G Collins
- 👤 Beryl G Stinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:37
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A GAGE FOR MEASURING THE MAXIMUM AND MINIMUM LEVELS OF A FLUCTUATING BODY OF WATER IN A BORE HOLE COMPRISING: (A) A WELL CASING INSERTED IN THE BORE HOLE EXTENDING FROM A POINT ABOVE THE SURFACE OF THE EARTH TO A POINT BELOW THE MINIMUM LEVEL OF THE WATER TABLE, SAID WELL CASING BEING PERFORATED ALONG THE LOWER PORTION; (B) A CYLINDRICAL MEMBER, CLOSED AT ITS UPPER END, SAID MEMBER BEING CAPABLE OF RECEIVING THE UPPER END OF SAID WELL CASING; (C) A SHAFT MOUNTED ON SAID CLOSED UPPER END OF SAID CYLINDRICAL MEMBER AND EXTENDING DOWNWARDLY ALONG THE AXIS OF SAID CYLINDRICAL MEMBER; (D) CENTERING MEANS FOR CENTERING SAID SHAFT WITHIN THE BORE HOLE; (E) A FLOAT SLIDABLY MOUNTED ON SAID SHAFT; (F) INDICATING MEANS MOUNTED ON SAID SHAFT ABOVE AND BELOW SAID FLOAT, SAID INDICATING MEANS BEING SLIDABLY MOUNTED ON SAID SHAFT WHEN ACTIVATED BY SAID FLOAT AND BEING INCAPABLE OF MOTION WHEN ACTED ON BY THEIR OWN WEIGHT; AND (G) RELEASABLE LOCKING MEANS FOR PREVENTING MOVEMENT OF SAID FLOAT ON SAID SHAFT.
Claim 2
Dependent Claim
175 words
A GAGE FOR MEASURING THE MAXIMUM AND MINIMUM LEVELS OF A FLUCTUATING BODY OF WATER IN A BORE HOLE COMPRISING: (A) A WELL CASING INSERTED IN THE BORE HOLE EXTENDING FROM A POINT ABOVE THE SURFACE OF THE EARTH TO A POINT BELOW THE MINIMUM LEVEL OF THE WATER TABLE, SAID WELL CASING BEING PERFORATED ALONG THE LOWER PORTION; (B) A CYLINDRICAL MEMBER, CLOSED AT ITS UPPER END, SAID MEMBER BEING CAPABLE OF RECEIVING THE UPPER END OF SAID WELL CASING; (C) A SHAFT MOUNTED ON SAID CLOSED UPPER END OF SAID CYLINDRICAL MEMBER AND EXTENDING DOWNWARDLY ALONG THE AXIS OF SAID CYLINDRICAL MEMBER; (D) CENTERING MEANS FOR CENTERING SAID SHAFT WITHIN THE BORE HOLE; (E) A FLOAT SLIDABLY MOUNTED ON SAID SHAFT; (F) INDICATING MEANS MOUNTED ON SAID SHAFT ABOVE AND BELOW SAID FLOAT, SAID INDICATING MEANS BEING SLIDABLY MOUNTED ON SAID SHAFT WHEN ACTIVATED BY SAID FLOAT AND BEING INCAPABLE OF MOTION WHEN ACTED ON BY THEIR OWN WEIGHT; AND (G) RELEASABLE LOCKING MEANS FOR PREVENTING MOVEMENT OF SAID FLOAT ON SAID SHAFT.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |