Patents Represented by Attorney Paul E. Calrow

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  • Can treating system
    Patent number: 3952698
    Abstract: An improved system for washing and coating metal can bodies, such as seamless aluminum and tin plate can bodies, in a can processing line wherein various can washing, coating and curing stations are arranged in a unique fashion along the line so as to utilize generally fully compatible washing and coating materials, the residues of which are adapted to be either recycled or discharged into a common waste disposal system, as well as an improved coated can body.
    Type: Grant
    Filed: June 19, 1974
    Date of Patent: April 27, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Arnold D. Beyer, Charles R. Crockett, Patrick G. Mitchell
  • Aluminum-manganese alloy
    Patent number: 3951764
    Abstract: Aluminum-manganese alloys containing up to about 10.0% by weight manganese are made by reacting molten aluminum with a manganese oxide, such as MnO or MnO.sub.2, under a blanket of fluoridic salts, for example cryolite. The alloy can also be prepared by electrolyzing the oxides of aluminum and manganese in a fluoridic bath using aluminum metal as cathode.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: April 20, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: William R. King
  • Bottom block for D.C. casting of aluminum rolling ingots
    Patent number: 3948310
    Abstract: This invention relates to an improved bottom block design for the D.C. casting of large aluminum rolling ingots wherein vertical extending, pyramid shaped projections are provided at the corners of the generally rectangularly shaped bottom block. Significant reductions in dish-shaped butt cracks and corner cold folds are found with the present design.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: April 6, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Jorge B. Deschapelles
  • Ventilation system for food stuffs
    Patent number: 3946649
    Abstract: This invention is concerned with a system for ventilating food stuffs, such as potatoes and the like, that are piled up in a storage area. The system employs an arched sheet that serves as a conduit for a ventilating gaseous medium, e.g., air, and it is anchored at its terminal edges in an improved fashion by a base support element that facilitates the passage of air from the tunnel-like interior of the arched sheet to the exterior thereof and into the food stuffs piled against the sheet.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: March 30, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Ronald H. Drawsky
  • Mold alignment device for horizontal casting
    Patent number: 3945425
    Abstract: This invention is directed to a horizontal casting apparatus having an improved mold mounting means which facilitates alignment of the mold with an ingot or billet support surface adjacent the discharge end of the mold.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: March 23, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: John J. Foye
  • 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
  • Cryogenic transport
    Patent number: 3941272
    Abstract: Improved system for mounting an aluminum cryogenic liquid holding tank within and integrating such tank to an outer ferrous metal envelope or hull structure wherein improved composite aluminum-ferrous metal transition insert elements are employed to interconnect the exterior surfaces of the aluminum tank to the interior surfaces of the ferrous metal envelope or hull structure.
    Type: Grant
    Filed: March 27, 1974
    Date of Patent: March 2, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Hollis G. McLaughlin
  • 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
  • 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
  • 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