Patents by Inventor C. David Weiss

C. David Weiss 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).

  • Filled tubular article for controlled insertion into molten metal
    Patent number: 4174962
    Abstract: A filled tubular article includes an elongated metal conduit having a melting temperature above the temperature of a molten metal in which the article is immersed. A core having first and second different and discrete materials is located within the conduit, and the composition is such that the first material controllably treats the molten metal while the second material liquifies and accelerates the liquification of the internal surface of the conduit to promote rapid dissolution thereof.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: November 20, 1979
    Assignee: Caterpillar Tractor Co.
    Inventors: John G. Frantzreb, Sr., C. David Weiss
  • Inoculation article
    Patent number: 4107393
    Abstract: An article for insertion into and inoculating molten metal is an elongated steel conduit having ferro-silicon material within the conduit. The ferro-silicon material has a silicon content greater than about 75% by weight and is compacted within the conduit to a magnitude sufficient for increasing the density at least 10% above the tapped density of said material.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: August 15, 1978
    Assignee: Caterpillar Tractor Co.
    Inventors: John G. Frantzreb, Sr., C. David Weiss