Preliminary Sealing Of Joints Patents (Class 228/186)
  • Titanium clad steel and process for making
    Patent number: 4023936
    Abstract: A nickel innerlayer is sandwiched between a steel plate and a titanium plate in a steel assembly, the assembly being hermetically sealed and reduced in a hot rolling operation which results in a metallurgical bond with greatly improved ductility as measured by bending and shear tests. The nickel layer contains not more than 0.03 percent carbon and not less than about 0.05 percent of a carbide former in a ratio of between about 4-35 of carbide former to one of carbon.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: May 17, 1977
    Assignee: Lukens Steel Company
    Inventors: Stephen Lewis Morse, James J. McGlynn
  • Method of fabricating large titanium pressure hulls
    Patent number: 3980220
    Abstract: A method of fabricating large cylindrical sections of titanium or other metals for applications such as pressure hulls from cylindrical segments wherein mated segments are capped off and evacuated, atmospheric pressure being used to force the mating surfaces together during diffusion welding.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: September 14, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert J. Wolfe, Charles A. Zanis, Louis F. Aprigliano