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US3859196A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrolytic cell including cathode busbar structure, cathode fingers, and anode base

Assignee: Occidental Chemical Corp
•
Filing: 1974-01-03
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Granted: 1975-01-07
•
Expires: 1994-01-03
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Abstract

Abstract A novel electrolytic cell comprising a novel cathode busbar structure, novel cathode fingers and a novel anode base structure which enable the novel electrolytic cell to be designed to operate as a chlor-alkali diaphragm cell at high current capacities of about 150,000 amperes and upward to about 200,000 amperes while maintaining high operating efficiencies. These high current capacities provide for high production capacities which result in high production rates for given cell room floor areas and reduce capital investment and operating costs.

Inventors

  • 👤 Walter W Ruthel
  • 👤 Leo G Evans

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 16:44
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/03; C25B9/00; C25B9/17; C25B9/19; C25B9/60; C25B9/65

Claims Analysis

Total Claims: 34
Claim 1
Independent Claim 481 words
AN ELECTROLYTIC CELL COMPRISING A CATHODE BUSBAR STRUCTURE, CATHODE FINGERS HAVING A CATHODE FINGER STRUCTURE, AND AN ANODE BASE STRUCTURE WHEREIN: I. SAID CATHODE BUSBAR STRUCTURE COMPRISES AT LEAST ONE LEAD-IN BUSBAR AND PLURALITY OF BUSBAR STRIPS WHICH HAVE DIFFERENT RELATIVE DIMENSIONS, SAID LEAD-IN BUSBAR AND SAID PLURALITY OF BUSBAR STRIPS ARE FABRICATED FROM A HIGHLY CONDUCTIVE METAL AND ARE POSITIONED IN SUCH A CONFIGURATION WHEREIN THE LEAD-IN BUSBAR AND THE PLURALITY OF BUSBAR STRIPS ARE ADAPTED TO CARRY AN ELECTRIC CURRENT AND TO MAINTAIN A SUBSTANTIALLY UNIFORM CURRENT DENSITY THROUGH THE CATHODE BUSBAR STRUCTURE FROM ELECTRICAL CONTACT POINTS ADJACENT TO THE CATHODE FINGERS WITHOUT ANY SIGNIFICANT VOLTAGE DROP ACROSS THE CATHODE BUSBAR STRUCTURE AND WITH THE MOST ECONOMICAL POWER CONSUMPTION IN THE CATHODE BUSBAR STRUCTURE, SAID CATHODE BUSBAR STRUCTURE IS ATTACHED IN ELECTRICAL CONTACT TO AT LEAST ONE SIDEWALL OF A CATHODE WALLED ENCLOSURE FABRICATED FROM A CONDUCTIVE METAL AND HAVING SIDEWALLS, SAID CATHODE WALLED ENCLOSURE THEREIN CONTAINS A PLURALITY OF CATHODE FINGERS; II. SAID CATHODE FINGERS HAVING A CATHODE FINGER STRUCTURE WHICH COMPRISES A CONDUCTIVE METAL CATHODE FINGER REINFORCING MEANS, LENGTHS OF HIGHLY CONDUCTIVE METAL POSITIONED IN THE CATHODE FINGER STRUCTURE, AND FORAMINOUS CONDUCTIVE METAL MEANS ATTACHED TO THE CATHODE FINGER REINFORCING MEANS THEREBY FORMING THE EXTERIOR OF THE CATHODE FINGER STRUCTURE AND PROVIDING GAS COMPARTMENT SPACE INSIDE THE CATHODE FINGER STRUCTURE, SAID LENGTHS OF HIGHLY CONDUCTIVE METAL ARE POSITIONED IN THE CATHODE FINGER STRUCTURE IN SUCH A CONFIGURATION WHEREBY THE LENGTHS OF HIGHLY CONDUCTIVE METAL ARE ADAPTED TO CARRY AN ELECTRIC CURRENT AND TO MAINTAIN A SUBSTANTIALLY UNIFORM CURRENT DENSITY THROUGH THE CATHODE FINGERS WITHOUT ANY SIGNIFICANT VOLTAGE DROP ACROSS THE CATHODE FINGERS AND WITH THE MOST ECONOMICAL POWER CONSUMPTION IN THE CATHODE FINGERS, SAID CATHODE FINGER STRUCTURE THUS PROVIDES A STRUCTURE FOR THE CATHODE FINGERS, SAID CATHODE WALLED ENCLOSURE THEREIN CONTAINS A PLURALITY OF CATHODE FINGERS WHICH EXTEND SUBSTANTIALLY ACROSS THE INTERIOR OF THE CATHODE WALLED ENCLOSURE AND THE CATHODE FINGERS ARE ATTACHED IN ELECTRICAL CONTACT TO AT LEAST ONE INTERIOR SIDEWALL OF THE CATHODE WALLED ENCLOSURE, SAID CATHODE BUSBAR STRUCTURE IS ATTACHED IN ELECTRICAL CONTACT TO THE EXTERIOR SIDEWALL OF THE CATHODE WALLED ENCLOSURE ON THE SIDEWALL ADJACENT TO THE ATTACHED CATHODE FINGERS; III. SAID ANODE BASE STRUCTURE COMPRISES A HIGHLY CONDUCTIVE METAL MEANS HAVING A SUBSTANTIALLY FLAT AND LEVEL SURFACE AND HAVING A DECREASED CROSS-SECTION AS IT EXTENDS AWAY FROM THE ANODE OR INTERCELL CONNECTING BUSBAR MEANS TO FORM THE CROSS-SECTIONAL SHAPE OF A SUBSTANTIALLY STAIRSTEPPED TRUNCATED RIGHT TRIANGLE, SAID HIGHLY CONDUCTIVE METAL MEANS HAS SUCH A CONFIGURATION AND DIFFERENT RELATIVE DIMENSIONS WHEREBY IT IS ADAPTED TO CARRY AN ELECTRIC CURRENT AND TO MAINTAIN A SUBSTANTIALLY UNIFORM CURRENT DENSITY THROUGH THE ANODE BASE STRUCTURE TO ELECTRICAL CONTACT POINTS ADJACENT TO THE ANODE BLADES WITHOUT ANY SIGNIFICANT VOLTAGE DROP ACROSS THE ANODE BASE STRUCTURE AND WITH THE MOST ECONOMICAL POWER CONSUMPTION IN THE ANODE BASE STRUCTURE.
Claim 2
Dependent Claim 481 words
AN ELECTROLYTIC CELL COMPRISING A CATHODE BUSBAR STRUCTURE, CATHODE FINGERS HAVING A CATHODE FINGER STRUCTURE, AND AN ANODE BASE STRUCTURE WHEREIN: I. SAID CATHODE BUSBAR STRUCTURE COMPRISES AT LEAST ONE LEAD-IN BUSBAR AND PLURALITY OF BUSBAR STRIPS WHICH HAVE DIFFERENT RELATIVE DIMENSIONS, SAID LEAD-IN BUSBAR AND SAID PLURALITY OF BUSBAR STRIPS ARE FABRICATED FROM A HIGHLY CONDUCTIVE METAL AND ARE POSITIONED IN SUCH A CONFIGURATION WHEREIN THE LEAD-IN BUSBAR AND THE PLURALITY OF BUSBAR STRIPS ARE ADAPTED TO CARRY AN ELECTRIC CURRENT AND TO MAINTAIN A SUBSTANTIALLY UNIFORM CURRENT DENSITY THROUGH THE CATHODE BUSBAR STRUCTURE FROM ELECTRICAL CONTACT POINTS ADJACENT TO THE CATHODE FINGERS WITHOUT ANY SIGNIFICANT VOLTAGE DROP ACROSS THE CATHODE BUSBAR STRUCTURE AND WITH THE MOST ECONOMICAL POWER CONSUMPTION IN THE CATHODE BUSBAR STRUCTURE, SAID CATHODE BUSBAR STRUCTURE IS ATTACHED IN ELECTRICAL CONTACT TO AT LEAST ONE SIDEWALL OF A CATHODE WALLED ENCLOSURE FABRICATED FROM A CONDUCTIVE METAL AND HAVING SIDEWALLS, SAID CATHODE WALLED ENCLOSURE THEREIN CONTAINS A PLURALITY OF CATHODE FINGERS; II. SAID CATHODE FINGERS HAVING A CATHODE FINGER STRUCTURE WHICH COMPRISES A CONDUCTIVE METAL CATHODE FINGER REINFORCING MEANS, LENGTHS OF HIGHLY CONDUCTIVE METAL POSITIONED IN THE CATHODE FINGER STRUCTURE, AND FORAMINOUS CONDUCTIVE METAL MEANS ATTACHED TO THE CATHODE FINGER REINFORCING MEANS THEREBY FORMING THE EXTERIOR OF THE CATHODE FINGER STRUCTURE AND PROVIDING GAS COMPARTMENT SPACE INSIDE THE CATHODE FINGER STRUCTURE, SAID LENGTHS OF HIGHLY CONDUCTIVE METAL ARE POSITIONED IN THE CATHODE FINGER STRUCTURE IN SUCH A CONFIGURATION WHEREBY THE LENGTHS OF HIGHLY CONDUCTIVE METAL ARE ADAPTED TO CARRY AN ELECTRIC CURRENT AND TO MAINTAIN A SUBSTANTIALLY UNIFORM CURRENT DENSITY THROUGH THE CATHODE FINGERS WITHOUT ANY SIGNIFICANT VOLTAGE DROP ACROSS THE CATHODE FINGERS AND WITH THE MOST ECONOMICAL POWER CONSUMPTION IN THE CATHODE FINGERS, SAID CATHODE FINGER STRUCTURE THUS PROVIDES A STRUCTURE FOR THE CATHODE FINGERS, SAID CATHODE WALLED ENCLOSURE THEREIN CONTAINS A PLURALITY OF CATHODE FINGERS WHICH EXTEND SUBSTANTIALLY ACROSS THE INTERIOR OF THE CATHODE WALLED ENCLOSURE AND THE CATHODE FINGERS ARE ATTACHED IN ELECTRICAL CONTACT TO AT LEAST ONE INTERIOR SIDEWALL OF THE CATHODE WALLED ENCLOSURE, SAID CATHODE BUSBAR STRUCTURE IS ATTACHED IN ELECTRICAL CONTACT TO THE EXTERIOR SIDEWALL OF THE CATHODE WALLED ENCLOSURE ON THE SIDEWALL ADJACENT TO THE ATTACHED CATHODE FINGERS; III. SAID ANODE BASE STRUCTURE COMPRISES A HIGHLY CONDUCTIVE METAL MEANS HAVING A SUBSTANTIALLY FLAT AND LEVEL SURFACE AND HAVING A DECREASED CROSS-SECTION AS IT EXTENDS AWAY FROM THE ANODE OR INTERCELL CONNECTING BUSBAR MEANS TO FORM THE CROSS-SECTIONAL SHAPE OF A SUBSTANTIALLY STAIRSTEPPED TRUNCATED RIGHT TRIANGLE, SAID HIGHLY CONDUCTIVE METAL MEANS HAS SUCH A CONFIGURATION AND DIFFERENT RELATIVE DIMENSIONS WHEREBY IT IS ADAPTED TO CARRY AN ELECTRIC CURRENT AND TO MAINTAIN A SUBSTANTIALLY UNIFORM CURRENT DENSITY THROUGH THE ANODE BASE STRUCTURE TO ELECTRICAL CONTACT POINTS ADJACENT TO THE ANODE BLADES WITHOUT ANY SIGNIFICANT VOLTAGE DROP ACROSS THE ANODE BASE STRUCTURE AND WITH THE MOST ECONOMICAL POWER CONSUMPTION IN THE ANODE BASE STRUCTURE.
Claim 3
Dependent Claim 35 words
The electrolytic cell of claim 1, wherein the cathode busbar structure is provided with means for attaching cathode jumper connector means when an adjacent electrolytic cell is jumpered and is removed from the electrical circuit.
Claim 4
Dependent Claim 44 words
The electrolytic cell of claim 1 wherein the cathode busbar structure is provided with a cooling means to prevent temperatures in the cathode busbar structure from rising to levels whereby damage to the cathode busbar structure or other components of the electrolytic cell occurs.
Claim 5
Dependent Claim 21 words
The cathode busbar structure of claim 1 wherein the lead-in busbar and the plurality of busbar strips are fabricated from copper.
Claim 6
Dependent Claim 19 words
The electrolytic cell of claim 1 wheRein the cathode walled enclosure contains about 10 to about 50 cathode fingers.
Claim 7
Dependent Claim 15 words
The electrolytic cell of claim 1 wherein the cathode walled enclosure is fabricated from steel.
Claim 8
Dependent Claim 65 words
The electrolytic cell of claim 1 wherein the height of the plurality of the busbar strips of said cathode busbar structure at their points of attachment to the sidewall of the cathode walled enclosure is usually substantially the same as the height of the cathode finger reinforcing means of the cathode fingers at their points of attachment to the sidewall of the cathode walled enclosure.
Claim 9
Dependent Claim 21 words
The cathode finger structure of claim 1 wherein the conductive metal cathode finger reinforcing means comprises a corrugated conductive metal structure.
Claim 10
Dependent Claim 50 words
The cathode finger structure of claim 8 wherein the corrugated conductive metal structure has foraminous conductive metal means attached to the outer surfaces of its protruding ridges thereby forming said exterior and providing compartment space for gas, formed at the cathode during electrolysis, to be channeled to a collection chamber.
Claim 11
Dependent Claim 54 words
The cathode finger reinforcing means of claim 9 wherein the corrugated conductive metal structure is provided with protrusions on the outer surfaces of its protruding ridges to which foraminous conductive metal means is attached to provide additional compartment space for gas, formed at the cathode during electrolysis, to be channeled to a collection chamber.
Claim 12
Dependent Claim 17 words
The cathode finger structure of claim 10 wherein said foraminous conductive metal means is perforated metal plate.
Claim 13
Dependent Claim 15 words
The cathode finger structure of claim 10 wherein the foraminous conductive metal means is screen.
Claim 14
Dependent Claim 66 words
The cathode finger structure of claim 1 wherein the conductive metal cathode finger reinforcing means comprises a conductive metal plate, said plate having peg or pin means attached to said plate and foraminous conductive metal means attached to said peg or pin means thereby forming said exterior and providing compartment space for gas, formed at the cathode during electrolysis, to be channeled to a collection chamber.
Claim 15
Dependent Claim 17 words
The cathode finger structure of claim 13 wherein the foraminous conductive metal means is perforated metal plate.
Claim 16
Dependent Claim 15 words
The cathode finger structure of claim 13 wherein the foraminous conductive metal means is screen.
Claim 17
Dependent Claim 40 words
The cathode finger structure of claim 1 wherein the lengths of highly conductive metal are positioned on the cathode finger reinforcing means in the cathode finger structure and the highly conductive metal is attached to the cathode finger reinforcing means.
Claim 18
Dependent Claim 45 words
The cathode finger structure of claim 1 wherein the lengths of highly conductive metal are of different lengths and are positioned on the cathode finger reinforcing means in the cathode finger structure and the highly conductive metal is attached to the cathode finger reinforcing means.
Claim 19
Dependent Claim 44 words
The cathode finger structure of claim 1 wherein the lengths of highly conductive metal have different cross-sections and are positioned on the cathode finger reinforcing means in the cathode finger structure and the highly conductive metal is attached to the cathode finger reinforcing means.
Claim 20
Dependent Claim 47 words
The cathode finger structure of claim 1 wherein the lengths of highly conductive metal have different lengths and different cross-sections and are positioned on the cathode finger reinforcing means in the cathode finger structure and the highly conductive metal is attached to the cathode finger reinforcing means.
Claim 21
Dependent Claim 15 words
The novel cathode finger structure of claim 1 wherein the highly conductive metal is copper.
Claim 22
Dependent Claim 28 words
The cathode fingers of claim 1 wherein means are provided for positioning the cathode fingers to the sidewall opposite to that sidewall to which the fingers are attached.
Claim 23
Dependent Claim 22 words
The anode base structure of claim 1 wherein the highly conductive metal means is provided with means for attaching the anode blades.
Claim 24
Dependent Claim 22 words
The anode base structure of claim 1 wherein said anode base structure comprises structural suPport means for the highly conductive metal means.
Claim 25
Dependent Claim 34 words
The anode base structure of claim 23 wherein said support means for the highly conductive metal means comprises a configuration of metal shapes which form a unitary structure with said highly conductive metal means.
Claim 26
Dependent Claim 14 words
The anode base structure of claim 24 wherein the metal shapes comprise steel plates.
Claim 27
Dependent Claim 25 words
The anode base structure of claim 1 wherein said anode base structure is provided with sufficient means to support other components of the electrolytic cell.
Claim 28
Dependent Claim 23 words
The anode base structure of claim 26 wherein the means to support other components of the electrolytic cell comprise structural metallic support means.
Claim 29
Dependent Claim 23 words
The anode base structure of claim 26 wherein the means to support other components of the electrolytic cell comprise structural non-metallic support means.
Claim 30
Dependent Claim 35 words
The electrolytic cell of claim 1 wherein the anode base structure is provided with a jumper busbar for attaching anode connector means when an adjacent electrolytic cell is jumpered and removed from the electrical circuit.
Claim 31
Dependent Claim 45 words
The anode base structure of claim 1 wherein the anode base structure is provided with a cooling means to prevent temperatures in the anode busbar structure from rising to levels whereby damage to the anode busbar structure or other components of the electrolytic cell occur.
Claim 32
Dependent Claim 15 words
The anode base structure of claim 1 wherein said highly conductive metal means is copper.
Claim 33
Dependent Claim 25 words
The cathode finger structure of claim 1 wherein the conductive metal cathode finger reinforcing means and the foraminous conductive metal means are fabricated from steel.
Claim 34
Dependent Claim 25 words
The electrolytic cell of claim 1 wherein said cell has design means to operate at a current capacity of about 150,000 to about 200,000 amperes.

References Cited (Backward Citations)

US3464912A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-06 1978-07-08 1979-01-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-06 1982-07-08 1983-01-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-06 1986-07-08 1987-01-07 $7700.00 Window Closed / Lapsed

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