Patents by Inventor Wilhelm Siebmanns

Wilhelm Siebmanns 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).

  • Molded ceramic member, particularly of silicon ceramic, and method for the manufacture thereof
    Patent number: 4322458
    Abstract: An encapsulated ceramic molded member for high-temperature isostatic pressing which precludes the danger of deformation caused by a capsule material and in which, more particularly, a capsule material comes into consideration which will withstand the extremely high temperatures encountered during high-temperature isostatic pressing and which will be compatible with the ceramic material of the molded member, as well as a method for the encapsulation of such molded members. The molded member is coated with a material having the composition Ag.sub.2 O. (refractory metal . O.sub.x), or mixtures of such materials according to the composition Ag.sub.2 O. (refractory metals . O.sub.x).
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: March 30, 1982
    Assignee: Motoren-und Turbinen Union
    Inventor: Wilhelm Siebmanns