US3043764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic detector
Assignee: Paterson Engineering Co Ltd
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Filing: 1959-04-27
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Granted: 1962-07-10
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Harvey Archibald Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404; G01N27/4045; G01N27/28; G01N27/30; G01N27/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A DETECTOR OF THE STATE OF THE CHEMICAL CONSTITUTION OF A LIQUID COMPRISING A GALVANIC COUPLE FORMED OF ELECTRODES OF DISSIMILAR METALS ADAPTED TO BE IMMERSED IN SAID LIQUID AND MEASURING MEANS FOR MEASURING THE ELECTRIC CURRENT PRODUCED, THE IMPROVEMENT COMPRISING AN IMPERFORATE CUP-LIKE VESSEL FOR HOLDING THE LIQUID, MEANS MOUNTING THE CUP FOR ROTATION ABOUT IS AXIS WHILE INCLIDED TO THE VERTICAL, AT LEAST PART OF THE MATERIAL OF WHICH THE CUP IS CONSTRUCTED FORMING ONE OF THE ELECTRODES WITH WHICH THE LIQUID IS IN CONTACT, AND A BED OF ABRASIVE MATERIAL HAVIER THAN THE LIQUID AND WITHIN THE CUP IN CONTACT WITH AT LEAST THE SAID ONE OF THE ELECTRODES TO CLEAN IT UPON ROTATIONAL MOVEMENT OF THE CUP, SAID ABRASIVE MATERIAL BEING ELECTRICALLY NON-CONDUCTIVE AND CHEMICALLY INERT.
Claim 2
Dependent Claim
131 words
IN A DETECTOR OF THE STATE OF THE CHEMICAL CONSTITUTION OF A LIQUID COMPRISING A GALVANIC COUPLE FORMED OF ELECTRODES OF DISSIMILAR METALS ADAPTED TO BE IMMERSED IN SAID LIQUID AND MEASURING MEANS FOR MEASURING THE ELECTRIC CURRENT PRODUCED, THE IMPROVEMENT COMPRISING AN IMPERFORATE CUP-LIKE VESSEL FOR HOLDING THE LIQUID, MEANS MOUNTING THE CUP FOR ROTATION ABOUT IS AXIS WHILE INCLIDED TO THE VERTICAL, AT LEAST PART OF THE MATERIAL OF WHICH THE CUP IS CONSTRUCTED FORMING ONE OF THE ELECTRODES WITH WHICH THE LIQUID IS IN CONTACT, AND A BED OF ABRASIVE MATERIAL HAVIER THAN THE LIQUID AND WITHIN THE CUP IN CONTACT WITH AT LEAST THE SAID ONE OF THE ELECTRODES TO CLEAN IT UPON ROTATIONAL MOVEMENT OF THE CUP, SAID ABRASIVE MATERIAL BEING ELECTRICALLY NON-CONDUCTIVE AND CHEMICALLY INERT.
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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |