Patents by Inventor Ernest E. Haack

Ernest E. Haack 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).

  • Metal powder mixtures, sintered article produced therefrom and process for producing same
    Patent number: 4299629
    Abstract: A wear-, corrosion-, heat-, and abrasion-resistant sintered body is prepared from a metallic powder mixture of from about 95 to 99.5% of a base alloy powder and about 0.5 to 5% of an additive alloy powder, wherein the additive alloy has a melting point which is lower than the melting point of the base alloy such that when pressed and sintered at a temperature above the melting point of the additive alloy and below the melting point of the base alloy a sintered body is produced having a density of at least 95% of the theoretical density.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: November 10, 1981
    Assignee: Goetze AG
    Inventor: Ernest E. Haack