Robert W Shoemaker

US Patent:

41135113, Sep 12, 1978

Filed:

Jan 17, 1977

Appl. No.:

5/759763

Inventors:

Robert H. Shoemaker - Royal Oak MI
William G. Wood - Grosse Pointe Farms MI

International Classification:

C23G 128
B01F 100

US Classification:

134 10

Abstract:

A method and apparatus is disclosed where aqueous solutions of chemicals are added to fused non-aqueous baths. This is done by spraying the aqueous solution of the chemicals onto the surface of the fused bath in a fine spray, causing the evaporation of the water.

US Patent:

39516814, Apr 20, 1976

Filed:

Nov 1, 1973

Appl. No.:

5/411993

Inventors:

Robert H. Shoemaker - Royal Oak MI
William G. Wood - Grosse Pointe Park MI

Assignee:

Kolene Corporation - Detroit MI

International Classification:

C23G 114
C23G 128

US Classification:

134 2

Abstract:

A ferrous metal product to be cleaned is immersed in an oxidizing molten salt bath forming a conditioned scale on the surface of the metal. The conditioned scale is subsequently removed from the metal surface by immersing the metal product in an aqueous caustic bath containing alkali metal hydroxide with alkali gluconate and triethanolamine serving as sequestering agents. The caustic bath may optionally include a brightening catalyst or ethylenediamine-tetracetic acid.