Patents Represented by Attorney Christopher Philip Wrist

Find this attorney in the Justia Lawyer Directory

  • Flexible trailing shield for welding reactive metals
    Patent number: 4599505
    Abstract: A flexible trailing shield for providing nonreactive gas shielding to arc lding operations comprises a housing formed of interlocking transverse segments adapted to flexibly cover weld surfaces having varying configurations. The housing has a torch entrance port for slidably receiving a welding torch, a conduit for receiving gas into the housing, a foraminous material to uniformly distribute the gas within the housing, and a pervious structure through which the gas is dispersed over the weld surface.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: July 8, 1986
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William E. Lukens, Robert DeNale