Patents Assigned to Yates Industries
  • Patent number: 5019221
    Abstract: A drum cathode for the production of metal foil, the drum having a titanium top cylinder and a stainless steel base cylinder integrallly connected by welding (1) a niobium or vanadium ring to the top cylinder, (2) a copper ring to the niobium or vanadium ring, and (3) the base cylinder to the copper ring, so as to provide a high electric current carrying path between the top and base cylinder. The drum cathode eliminates the formation of "hot spots" during use, while permitting increased electric current flow and foil product rate.
    Type: Grant
    Filed: January 18, 1989
    Date of Patent: May 28, 1991
    Assignee: Yates Industries
    Inventors: Joseph M. Khalid, Chakrakody V. Shastry