Industrial protective systems
OwnerDennis Pauze, Charles Bitner +1inventors
InventorsDennis Pauze, Charles Bitner, Stacey MacDonald
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Abstract
A cathode blank used in electrolysis of metal having an improved edge strip. The edge strip is made of a polyurethane formulation having desirable characteristics that prevent electrolyte from leaking into edge strip covered portions of the cathode blank. The edge strip may be molded onto the cathode blank. Alternatively, the polyurethane formulation may also be injected into voids of preexisting edge strips.
Claims28
A combination cathode blank for collecting metal thereon from an electrolyte solution and an edge strip for preventing metal deposition along edges of the blank, comprising:
- an abraded edge portion of a cathode blank;
- and
- an edge strip extending along the edge portion in intimate contact with the surface thereof and extending about the edge of the blank,
- wherein the edge strip comprises a polyurethane formulation.
A method of forming an edge strip on a cathode for collecting a metal thereon from an electrolyte composition, comprising:
- (a) providing a sheet-like cathode blank,
- (b) abrading narrow edge regions on the blank,
- (c) applying to the narrow edge regions a primer, and
- (d) applying polyurethane to the narrow edge regions to form an edge strip thereon in intimate relation with surfaces of the narrow edge regions.
A method of forming an improved edge strip on a cathode blank, comprising:
- (a) providing a sheet-like blank;
- (b) providing an edge strip attached to at least a part of an edge of the blank, wherein the edge strip and blank form a central void;
- and
- (c) injecting polyurethane into the central void, substantially completely filling the void.
Dependencies are inferred from the claim text.