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US3116228A Expired / Lapsed US ⏱️ 0.0 years remaining

Diaphragm type electrolyticcell

Assignee: PPG Industries Inc
•
Filing: 1960-05-09
•
Granted: 1963-12-31
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Expires: 1980-05-09
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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)

US1376495A Cited
US1798575A Cited
US2330404A Cited
US2858263A Cited

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

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