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US4022678A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrolytic cell

Assignee: Individual
•
Filing: 1975-04-14
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Granted: 1977-05-10
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Expires: 1995-04-14
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Abstract

Abstract An electrolytic cell comprising a rectangular tank divided into a plurality of adjacent compartments by a plurality of spaced apart parallel electrode plates. The outboard electrodes may form one pair of the opposite tank walls. Alternate electrodes are of opposite polarity. The intermediate electrodes terminate short of the tank ends so that the slurry or solution may pass around both ends of the electrode. An agitator is mounted in each compartment. The agitators are shaped and positioned to direct a predetermined volume of slurry against each electrode, the amount being directed against the cathode and anode respectively may be equal or unequal depending on the metal being recovered and the chemical reaction required at the electrode. Strips of non-conductive material are arranged in the cell in spaced overlapping relationship with the peripheral side and bottom edges of each side of each cathode thereby blocking straight line current flow between the cathode edges and the closest anode area while defining a narrowed passage for directing slurry past such edges in a scrubbing action. The agitators and the associated mounting means can be adjusted to vary the volume of flow against the electrodes. Lifting fins are provided on the agitators for maintaining solids in suspension. An inlet and outlet are provided on opposite sides of the tank and the spaces around the ends of the intermediate electrodes and between the cathodes and the non-conductive strips are selected so that reciprocation of the agitators enhances flow of slurry through successive chambers between the inlet and outlet.

Inventors

  • 👤 Bruce C. Wojcik
  • 👤 Wilfred H. Herrett
  • 👤 Gerald D. Cooper
  • 👤 Reed Goold
  • 👤 Charles W. Wojcik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:04
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/12; C25C7/00

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 93 words
An electrolytic cell comprising a tank, at least one anode plate and one cathode plate suspended in said tank in spaced parallel relationship to each other defining a compartment therebetween, an agitator assembly in said compartment between said anode and cathode plates comprising at least one shaped member, rigid means mounting said agitator for reciprocating movement in a fixed path between said plates and means included in said agitator assembly for continuously directing a preselected volume of tank contents toward each of said plates upon reciprocation of said agitator assembly in said compartment.
Claim 2
Dependent Claim 93 words
An electrolytic cell comprising a tank, at least one anode plate and one cathode plate suspended in said tank in spaced parallel relationship to each other defining a compartment therebetween, an agitator assembly in said compartment between said anode and cathode plates comprising at least one shaped member, rigid means mounting said agitator for reciprocating movement in a fixed path between said plates and means included in said agitator assembly for continuously directing a preselected volume of tank contents toward each of said plates upon reciprocation of said agitator assembly in said compartment.
Claim 3
Dependent Claim 38 words
An electrolytic cell according to claim 1 with the addition of strips of non-conductive material mounted in said tank spaced from the bottom and end edges of said cathode plate and between said edges and said anode plate.
Claim 4
Dependent Claim 25 words
An electrolytic cell according to claim 1 in which the side and bottom edges of said each cathode plates are coated with a nonconductive material.
Claim 5
Dependent Claim 100 words
An electrolytic cell according to claim 2 in which at least one anode plate and one cathode plate are suspended inside the tank and are of size to have their ends terminate short of the tank end walls, said non-conducting strips adjacent an end edge of each of said cathodes comprise strips of material secured to and extending inwardly from the tank wall in the form of a "V" formed between adjacent strips with the end edges of said cathodes and anodes extending into the mouth of said "V" whereby a passage is defined around the ends of said plates.
Claim 6
Dependent Claim 21 words
An electrolytic cell according to claim 2 in which alternating anode plates and cathode plates define a plurality of adjacent compartments.
Claim 7
Dependent Claim 92 words
An electrolytic cell according to claim 5 in which the tank is provided with an inlet and an outlet on opposite sides thereof, the spaces around the ends of said electrode plates form a tortuous path between said inlet and said outlet, and said non-conducting strips adjacent the end edges of the cathodes are arranged so that the space between one end of a plate and the non-conducting strip is greater than the space between the opposite end of said plate and the non-conductive strip on the same side of said plate.
Claim 8
Dependent Claim 106 words
An electrolytic cell according to claim 1 in which said agitator assembly includes at least one substantially vertical post shaped in transverse cross section as a diamond truncated on one side, thereby to have an apex and a base, said means mounting said assembly for reciprocation includes means enabling selectively positioning said apex of said post adjacent a selected one of said electrode plates at a greater distance therefrom than said base is from the other of said adjacent electrode plates, there is provided on said assembly an upwardly sloped agitator strip; and said agitator strip is substantially centered in the compartment between adjacent electrode plates.
Claim 9
Dependent Claim 35 words
The electrolytic cell according to claim 7 in which said tank is rectangular and the outermost ones of said electrode plates from the inner surfaces of one pair of opposite side walls of said tank.
Claim 10
Dependent Claim 47 words
An electrolytic cell according to claim 1 in which said electrodes define a plurality of adjacent compartments, an agitator assembly is provided for each of said compartments and said means for effecting said reciprocating movement includes means for effecting opposing motion of said assembly in adjacent compartments.

References Cited (Backward Citations)

US808798A Cited
US844263A Cited
US1279860A Cited
US1379089A Cited
US1362082A Cited
US1892413A Cited
US3558455A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-05-09 1980-11-08 1981-05-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-05-09 1984-11-08 1985-05-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-05-09 1988-11-08 1989-05-10 $7700.00 Window Closed / Lapsed

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