US3247090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell
Assignee: PPG Industries Inc
•
Filing: 1962-09-17
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Granted: 1966-04-19
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Forbes Sydney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:56
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/17; C25B9/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
278 words
AN ELECTROLYTIC CELL WHICH COMPRISES A CELL HOUSING HAVING WALLS FOR ENCLOSING AN ELECTROLYTE, ONE OF SAID WALLS HAVING POSITIONED THEREON A SUBSTANTIALLY FLAT CELL ANODE, AOTHER OF SAID WALLS HAVING POSITIONED THEREON A FORAMINOUS METAL CELL CATHODE HAVING A FLAT ACTIVE SURFACE DIRECTLY OPPOSITE AND PARALLEL TO SAID CELL ANODE, A FIBROUS DIAPHRAGM POSITIONED ON SAID FLAT ACTIVE SURFACE OF SAID CELL CATHODE, A CELL UNIT IN SAID CELL HOUSING, SAID UNIT COMPRISING AN ELECTRICALLY CONDUCTIVE BACKING PLATE IMPERMEABLE TO CELL ELECTROLYTE AND PARALLEL TO SAID CELL CATHODE, AN ELECTRICALLY CONDUCTIVE SIDE WALL DIRECTLY OPPOSITE SAID BACKING PLATE, SAID ELECTRICALLY CONDUCTIVE SIDE WILL BEING READILY PERMEABLE TO CELL ELECTROLYTE AND HAVING AN OUTER CATHODIC SURFACE WITH A DIAPHRAGM POSITIONED THEREON, A PLURALITY OF ELONGATED ELECTRICALLY CONDUCTIVE METAL STIFFENERS POSITIONED BETWEEN AND ELECTRICALLY CONNECTED TO SAID BACKING PLATE AND SAID ELECTRICALLY CONDUCTIVE SIDE WALL OF SAID UNIT, SAID STIFFENERS BEING PARALLEL TO SAID CELL ANODE AND CELL CATHODE, A CELL UNIT ANODE POSITIONED ON SAID BACKING PLATE ON THE OUTER SURFACE AND CONTIGUOUS WITH THE ENTIRE OUTER SURFACE THEREOF AND IN ELECTRICAL CONTRACT THEREWITH, SAID STIFFENERS BEING PARALLEL TO SAID CELL UNIT ANODE AND SAID CATHODIC SURFACE TO THEREBY DISTRIBUTE CURRENT FROM THE CATHODIC SURFACE TO THE CELL UNIT ANODE, SAID UNIT BEING DISPOSED IN THE CELL HOUSING TO POSITION THE CELL UNIT ANODE THEREOF PARALLEL TO SAID CATHODE OF THE CELL HOUSING AND THE CATHODIC SURFACE THEREOF PARALLEL TO THE ANODE OF THE CELL HOUSING, PRODUCT DISCHARGE MEANS IN SAID UNIT, PRODUCT DISCHARGE MEANS AND ELECTROLYTE INTRODUCTION MEANS IN SAID CELL, AND MEANS FOR ESTABLISHING A POTENTIAL BETWEEN THE ANODE AND THE CATHODE OF SAID CELL HOUSING.
Claim 2
Dependent Claim
278 words
AN ELECTROLYTIC CELL WHICH COMPRISES A CELL HOUSING HAVING WALLS FOR ENCLOSING AN ELECTROLYTE, ONE OF SAID WALLS HAVING POSITIONED THEREON A SUBSTANTIALLY FLAT CELL ANODE, AOTHER OF SAID WALLS HAVING POSITIONED THEREON A FORAMINOUS METAL CELL CATHODE HAVING A FLAT ACTIVE SURFACE DIRECTLY OPPOSITE AND PARALLEL TO SAID CELL ANODE, A FIBROUS DIAPHRAGM POSITIONED ON SAID FLAT ACTIVE SURFACE OF SAID CELL CATHODE, A CELL UNIT IN SAID CELL HOUSING, SAID UNIT COMPRISING AN ELECTRICALLY CONDUCTIVE BACKING PLATE IMPERMEABLE TO CELL ELECTROLYTE AND PARALLEL TO SAID CELL CATHODE, AN ELECTRICALLY CONDUCTIVE SIDE WALL DIRECTLY OPPOSITE SAID BACKING PLATE, SAID ELECTRICALLY CONDUCTIVE SIDE WILL BEING READILY PERMEABLE TO CELL ELECTROLYTE AND HAVING AN OUTER CATHODIC SURFACE WITH A DIAPHRAGM POSITIONED THEREON, A PLURALITY OF ELONGATED ELECTRICALLY CONDUCTIVE METAL STIFFENERS POSITIONED BETWEEN AND ELECTRICALLY CONNECTED TO SAID BACKING PLATE AND SAID ELECTRICALLY CONDUCTIVE SIDE WALL OF SAID UNIT, SAID STIFFENERS BEING PARALLEL TO SAID CELL ANODE AND CELL CATHODE, A CELL UNIT ANODE POSITIONED ON SAID BACKING PLATE ON THE OUTER SURFACE AND CONTIGUOUS WITH THE ENTIRE OUTER SURFACE THEREOF AND IN ELECTRICAL CONTRACT THEREWITH, SAID STIFFENERS BEING PARALLEL TO SAID CELL UNIT ANODE AND SAID CATHODIC SURFACE TO THEREBY DISTRIBUTE CURRENT FROM THE CATHODIC SURFACE TO THE CELL UNIT ANODE, SAID UNIT BEING DISPOSED IN THE CELL HOUSING TO POSITION THE CELL UNIT ANODE THEREOF PARALLEL TO SAID CATHODE OF THE CELL HOUSING AND THE CATHODIC SURFACE THEREOF PARALLEL TO THE ANODE OF THE CELL HOUSING, PRODUCT DISCHARGE MEANS IN SAID UNIT, PRODUCT DISCHARGE MEANS AND ELECTROLYTE INTRODUCTION MEANS IN SAID CELL, AND MEANS FOR ESTABLISHING A POTENTIAL BETWEEN THE ANODE AND THE CATHODE OF SAID CELL HOUSING.
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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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |