Patents by Inventor Ernst Preuss

Ernst Preuss 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).

  • Membranes with preselected pore types for separation processes
    Patent number: 4261832
    Abstract: A membrane having a preselected pore type which is suited for separating processes comprising a shaped body formed by heating a mixture of finely ground carbonaceous material with a binder composed of about 5 to 20% by weight natural or synthetic elastomer or a mixture of both and of about 1 to 20% by weight of thermoplastic material to about 400.degree. to 1400.degree. C. in an inert atmosphere at a rate of temperature increase between 0.1.degree. and 10.degree. C./min. The membranes are useful for a wide range of selective chemical and physical separation operations of different materials.
    Type: Grant
    Filed: June 6, 1978
    Date of Patent: April 14, 1981
    Assignee: Bergwerksverband GmbH
    Inventors: Horst Schumacher, Harald Juntgen, Ernst Preuss, Dieter Zundorf, Werner Hodek, Ingo Romey