Patents by Inventor Ulrich Kump

Ulrich Kump 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).

  • Dustfree investment material for accurately fitting cast pieces and method of producing these investment materials
    Patent number: 5250110
    Abstract: Dustfree investment materials, for the production of accurately fitting cast parts, are described which contain water-soluble phosphates, magnesium oxide and silicon dioxide. The investment material is made up of two components (a) and (b) and component (a) contains the entire magnesium oxide, optionally a part of the silicon dioxide and, in the presence of silicon dioxide, 0.4 to 6% by weight of a hydrophile, organic solvent, and component (b) contains the phosphate, the remainder of the silicon dioxide and at least 0.5% by weight water.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: October 5, 1993
    Assignee: Degussa Aktiengesellschaft
    Inventors: Gerlinde Gantert, Bernd Kempf, Klaus-Peter Gundlach, Ulrich Kump