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US2928782A
Expired / Lapsed
US
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Automatic titrator
Assignee: Standard Oil Co
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Filing: 1956-02-09
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Granted: 1960-03-15
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Expires: 1976-02-09
Abstract
No abstract record available.
Inventors
- 👤 Frank A Leisey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:14
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/42; G01N27/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN APPARATUS COMPRISING IN COMBINATION A TITRATION CELL, ELECTRODE MEANS FOR COULOMETRICALLY GENERATING BROMINE IN AN ELECTROLYTE WITHIN SAID CELL, SAID ELECTRODE MEANS FOR GENERATING BROMINE COMPRISING A TUBE, A PLATINUM WIRE SPIRAL CATHODE WITHIN SAID TUBE, AN ISOLATING PLUG CLOSING THE BOTTOM OF SAID TUBE, A WIRE SPIRAL ANODE WOUND AROUND SAID TUBE ADJACENT SAID PLUG, AND A GENERATION CURRENT SOURCE MEANS CONNECTED TO SAID ELECTRODE MEANS, SAID SOURCE MEANS INCLUDING CONTROL MEANS FOR APPLYING TWO COULOMETRIC CURRENT RANGES TO SAID ELECTRODE MEANS, A SECOND PAIR OF SPACED ELECTRODES IN SAID CELL FOR DETECTING CHANGES IN THE CONCENTRATION OF FREE BROMINE IN THE ELECTROLYTE IN SAID CELL, MEANS FOR ESTABLISHING A PRESELECTED LEVEL OF CONCENTRATION OF BROMINE IN SAID ELECTROLYTE, MEANS RESPONSIVE TO PRESELECTED LEVEL IN THE CONCENTRATION OF SUCH BROMINE IN SAID ELECTROLYTE TERMINATING THE COULOMETRIC GENERATION OF BROMINE THEREIN, AND MEANS FOR
Claim 2
Independent Claim
145 words
AN APPARATUS COMPRISING IN COMBINATION A TITRATION CELL, ELECTRODE MEANS FOR COULOMETRICALLY GENERATING BROMINE IN AN ELECTROLYTE WITHIN SAID CELL, SAID ELECTRODE MEANS FOR GENERATING BROMINE COMPRISING A TUBE, A PLATINUM WIRE SPIRAL CATHODE WITHIN SAID TUBE, AN ISOLATING PLUG CLOSING THE BOTTOM OF SAID TUBE, A WIRE SPIRAL ANODE WOUND AROUND SAID TUBE ADJACENT SAID PLUG, AND A GENERATION CURRENT SOURCE MEANS CONNECTED TO SAID ELECTRODE MEANS, SAID SOURCE MEANS INCLUDING CONTROL MEANS FOR APPLYING TWO COULOMETRIC CURRENT RANGES TO SAID ELECTRODE MEANS, A SECOND PAIR OF SPACED ELECTRODES IN SAID CELL FOR DETECTING CHANGES IN THE CONCENTRATION OF FREE BROMINE IN THE ELECTROLYTE IN SAID CELL, MEANS FOR ESTABLISHING A PRESELECTED LEVEL OF CONCENTRATION OF BROMINE IN SAID ELECTROLYTE, MEANS RESPONSIVE TO PRESELECTED LEVEL IN THE CONCENTRATION OF SUCH BROMINE IN SAID ELECTROLYTE TERMINATING THE COULOMETRIC GENERATION OF BROMINE THEREIN, AND MEANS FOR
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) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |