Patents by Inventor Gunter Helmrich

Gunter Helmrich 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 of making shaped bodies
    Patent number: 4105729
    Abstract: A method and an apparatus for producing coherent shaped bodies from granular material. The granular material is confined in a mold and the mold is subjected to vibratory motions requisite for compacting the granular material. In accordance with the invention, the granular material is vibrated at its resonant frequency under a light load, then a substantial compressive force is applied to the granular material and the granular material is vibrated at the resonant frequency of the whole vibrating system under compression.
    Type: Grant
    Filed: July 29, 1971
    Date of Patent: August 8, 1978
    Assignee: Vereinigte Aluminium-Werke Aktiengesellschaft
    Inventors: Gunter Helmrich, Fritz Wulfing
  • Method of making carbon electrodes
    Patent number: 4079109
    Abstract: A method for producing coherent shaped bodies from granular material. The granular material is confined in a mold and the mold is subjected to vibratory motions requisite for compacting the granular material. The frequency of the vibratory motions is continuously increased until compaction is achieved.
    Type: Grant
    Filed: March 23, 1976
    Date of Patent: March 14, 1978
    Assignee: Vereinigte Aluminium-Werke Aktiengesellschaft
    Inventors: Gunter Helmrich, Fritz Wulfing