Patents Represented by Attorney Edward J. Lynch

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  • Anodizing pretreatment for nickel plating
    Patent number: 3943039
    Abstract: This invention relates to a process of pretreating an aluminum surface for subsequent nickel plating to provide improved adhesion and corrosion resistance. The pretreatment process comprises subjecting the aluminum surface to anodizing in a phosphoric acid electrolyte in such a manner so that the voltage is increased to operating levels within 30 seconds, preferably in less than 15 seconds.
    Type: Grant
    Filed: October 8, 1974
    Date of Patent: March 9, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Henry J. Wittrock
  • Composition control of an electrocoating bath
    Patent number: 3935085
    Abstract: This invention relates to a method of controlling the composition of an electrocoating bath, and, in particular, the neutralization agent content of such a bath wherein the electrocoating current is sensed and in accordance therewith a particular amount of ultrafilter permeate is discarded.
    Type: Grant
    Filed: March 6, 1974
    Date of Patent: January 27, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Jr. Baker, Willard J. Springer
  • Process for melting metal
    Patent number: 3935003
    Abstract: This invention relates to an improved method of melting metal, particularly reactive metals, such as aluminum, wherein heated molten metal is withdrawn from a first chamber and a portion of the withdrawn molten metal is transferred to a second chamber containing solid metal so as to melt same and a portion of the withdrawn metal is recirculated to the first chamber so as to maintain melt homogenuity therein.
    Type: Grant
    Filed: February 25, 1974
    Date of Patent: January 27, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Theodore D. Steinke, Melvin A. Carter
  • Insulated tank
    Patent number: 3931908
    Abstract: This invention relates to an improved corner construction for cryogenic tanks of generally rectilinear cross section wherein the internal surfaces of the tank are insulated with a foamed material which is in direct contact with cryogenic liquid.
    Type: Grant
    Filed: August 2, 1973
    Date of Patent: January 13, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Dan R. Cheyney