Vacuum Tube Grids Patents (Class 140/71B)
  • Patent number: 4437034
    Abstract: Disclosed is a parallel wire grid and an apparatus and method for making the same. The grid consists of a generally coplanar array of parallel spaced-apart wires secured between metallic frame members by an electrically conductive epoxy.The method consists of continuously winding a wire about a novel winding apparatus comprising a plurality of spaced-apart generally parallel spindles. Each spindle is threaded with a number of predeterminedly spaced-apart grooves which receive and accurately position the wire at predetermined positions along the spindle. Overlying frame members coated with electrically conductive epoxy are then placed on either side of the wire array and are drawn together. After the epoxy hardens, portions of the wire array lying outside the frame members are trimmed away.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: March 13, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Edward F. Lewandowski, John Vrabec