US2954333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electrolyzing brine
Assignee: Columbia Southern Chemical Corp
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Filing: 1957-07-11
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Granted: 1960-09-27
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Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
- 👤 Theodore W Heiskell
- 👤 Gordon A Carlson
- 👤 Shannon W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:10
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A METHOD OF PREPARING CHLORINE AND CAUSTIC BY ELECTROLYSIS OF A BRINE SOLUTION IN AN ELECTROLYTIC DIA PHRAGM CELL HAVING AN ASBESTOS DIAPHRAGM AND A NORMAL OPERATING BRINE LEVEL ABOVE THE ELECTRODE TOPS OF SAID CELL THE IMPROVEMENT COMPRISING ADDING SUFFICIENT HYDROCHLORIC ACID TO THE BRINE SOLUTION TO PROVIDE 1 TO 15 PERCENT BY WEIGHT THEORETICAL ACID EQUIPMENT BASED ON THE THEORETICAL CHLORINE-PRODUCING CAPACITY OF THE CELL PER MINUTE WHILE INCREASING AND MAINTAINING THE BRINE LEVEL IN THE CELL AT LEAST 3 INCHES HIGHER THAN SAID NORMAL LEVEL DURING THE ACID ADDITION.
Claim 2
Dependent Claim
93 words
IN A METHOD OF PREPARING CHLORINE AND CAUSTIC BY ELECTROLYSIS OF A BRINE SOLUTION IN AN ELECTROLYTIC DIA PHRAGM CELL HAVING AN ASBESTOS DIAPHRAGM AND A NORMAL OPERATING BRINE LEVEL ABOVE THE ELECTRODE TOPS OF SAID CELL THE IMPROVEMENT COMPRISING ADDING SUFFICIENT HYDROCHLORIC ACID TO THE BRINE SOLUTION TO PROVIDE 1 TO 15 PERCENT BY WEIGHT THEORETICAL ACID EQUIPMENT BASED ON THE THEORETICAL CHLORINE-PRODUCING CAPACITY OF THE CELL PER MINUTE WHILE INCREASING AND MAINTAINING THE BRINE LEVEL IN THE CELL AT LEAST 3 INCHES HIGHER THAN SAID NORMAL LEVEL DURING THE ACID ADDITION.
References Cited (Backward Citations)
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Cited
US665953A
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US1284618A
Cited
US2248137A
Cited
US2787591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |