Patents by Inventor Joseph C. Danko

Joseph C. Danko 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).

  • Method for producing microporous metal bodies
    Patent number: 4362564
    Abstract: Tungsten is vapor-deposited by hydrogen reduction of tungsten hexafluoride (WF.sub.6) to produce a tungsten body having from 40 to 100 ppm fluorine. The tungsten is then heated under vacuum to produce grain boundary porosity for a sufficient period of time to allow the pores along the grain boundaries to become interconnected.
    Type: Grant
    Filed: September 12, 1967
    Date of Patent: December 7, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Joseph C. Danko
  • Method of producing microporous joints in metal bodies
    Patent number: 4362582
    Abstract: Tungsten is placed in contact with either molybdenum, tantalum, niobium, vanadium, rhenium, or other metal of atoms having a different diffusion coefficient than tungsten. The metals are heated so that the atoms having the higher diffusion coefficient migrate to the metal having the lower diffusion rate, leaving voids in the higher diffusion coefficient metal. Heating is continued until the voids are interconnected.
    Type: Grant
    Filed: September 12, 1967
    Date of Patent: December 7, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Joseph C. Danko