US3116228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm type electrolyticcell
Assignee: PPG Industries Inc
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Filing: 1960-05-09
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Granted: 1963-12-31
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Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 Talbott Edmond Lowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:38
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/17; C25B9/19; C25B9/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
AN ELECTROLYTIC CELL OF THE DIAPHRAGM TYPE COMPRISING A BOTTOM, A COVER AND SIDE WALLS ENCLOSING A CHAMBER, AN ELECTRICALLY CONDUCTIVE FRAME PERIPHERALLY POSITIONED ON THE SIDE WALLS AND BELOW THE COVER, SAID FRAME BEING OPEN IN THE CENTER THEREBY FORMING PART OF SAID CHAMBER, A PLURALITY OF ENLONGATED ELECTRICALLY CONDUCTIVE MEMBERS EXTENDING HORIZONATALLY INTO SAID CHAMBER FROM SAID FRAME, MEANS CONNECTED TO SAID FRAME FOR PASSING CURRENT THERETO, ANODES ELECTRICALLY CONNECTED TO SAID MEMBERS AND DEPENDING DOWNWARDLY THEREFROM TO A POINT ABOVE THE CELL BOTTOM, A FORAMINOUS METAL CATHODE ATTACHED TO THE SIDE WALLS AND HAVING A PLURALITY OF HORIZONTALLY DISPOSED FINGERS PROJECTING INWARDLY OF THE SIDE WALLS AND POSITIONED BETWEEN THE DOWNWARDLY DEPENDING ANODES, A DIAPHRAGM AFFIXED TO SAID CATHODE AND A GAS COLLECTION CHAMBER LOCATED BENEATH THE CELL COVER AND ABOVE THE FRAME AND ASSOCIATED ELECTRICALLY CONDUCTIVE MEMBERS.
Claim 2
Dependent Claim
141 words
AN ELECTROLYTIC CELL OF THE DIAPHRAGM TYPE COMPRISING A BOTTOM, A COVER AND SIDE WALLS ENCLOSING A CHAMBER, AN ELECTRICALLY CONDUCTIVE FRAME PERIPHERALLY POSITIONED ON THE SIDE WALLS AND BELOW THE COVER, SAID FRAME BEING OPEN IN THE CENTER THEREBY FORMING PART OF SAID CHAMBER, A PLURALITY OF ENLONGATED ELECTRICALLY CONDUCTIVE MEMBERS EXTENDING HORIZONATALLY INTO SAID CHAMBER FROM SAID FRAME, MEANS CONNECTED TO SAID FRAME FOR PASSING CURRENT THERETO, ANODES ELECTRICALLY CONNECTED TO SAID MEMBERS AND DEPENDING DOWNWARDLY THEREFROM TO A POINT ABOVE THE CELL BOTTOM, A FORAMINOUS METAL CATHODE ATTACHED TO THE SIDE WALLS AND HAVING A PLURALITY OF HORIZONTALLY DISPOSED FINGERS PROJECTING INWARDLY OF THE SIDE WALLS AND POSITIONED BETWEEN THE DOWNWARDLY DEPENDING ANODES, A DIAPHRAGM AFFIXED TO SAID CATHODE AND A GAS COLLECTION CHAMBER LOCATED BENEATH THE CELL COVER AND ABOVE THE FRAME AND ASSOCIATED ELECTRICALLY CONDUCTIVE MEMBERS.
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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |