Patents by Inventor John A. Ball

John A. Ball has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4481083
    Abstract: In an integrated process for the anodization of aluminum foil for electrolytic capacitors including the formation of a hydrous oxide layer on the foil prior to anodization and stabilization of the foil in alkaline borax baths during anodization, the foil is electrochemically anodized in an aqueous solution of boric acid and 2 to 50 ppm phosphate having a pH of 4.0 to 6.0. The anodization is interrupted for stabilization by passing the foil through a bath containing the borax solution having a pH of 8.5 to 9.5 and a temperature above 80.degree. C. and then reanodizing the foil. The process is useful in anodizing foil to a voltage of up to 760 V.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: November 6, 1984
    Assignee: Sprague Electric Company
    Inventors: John A. Ball, John W. Scott
  • Patent number: 3936344
    Abstract: Apparatus for use in the manufacture of a wiring harness includes a platform upon which the harness leads are supported. Each of the leads comprises an outer thermoplastic sheath containing a conductive core, and the apparatus is provided with a thermoplastic tape dispenser whereby thermoplastic tape can be dispensed onto the harness leads. A heater is provided for heating the mutually presented surfaces of the leads and the tape, and a pressure member urges the heated surfaces of the tape and the leads into contact so that the sheaths of the leads fuse to the tape. The heater, the dispenser and the pressure member define a unit which is movable along the length of the leads fusing tape to the leads as it progresses. The heater means can take a number of different forms including hot air blowing apparatus and radiant heating apparatus.
    Type: Grant
    Filed: August 13, 1973
    Date of Patent: February 3, 1976
    Assignee: Rist's Wires and Cables Limited
    Inventors: Lewis John Ball, Gordon Roy Frank Smith, William Lawrence Fry