Patents by Inventor Heinrich Sandau

Heinrich Sandau 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 for making a rubber base composition containing silicic acid
    Patent number: 6828361
    Abstract: A method for making a silicic acid containing rubber base composition includes providing composition ingredients of rubber, silicic acid, silane and additional additives except for vulcanization ingredients. First and second mixers separate from each other are provided wherein the ingredients except for the vulcanization ingredients can be mixed. All of the composition ingredients are introduced into the first mixer except for the vulcanization ingredients simultaneously or at time intervals. The composition ingredients introduced into the first mixer are mixed to a composition. The composition formed in the first mixer is transferred directly into the second mixer without an intermediate storage thereof. The transferred composition formed in the first mixer is mixed at least almost to completion in the second mixer with the temperature lying in the temperature range of 130° C. to 180° C.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: December 7, 2004
    Assignees: Continental Aktiengesellschaft
    Inventors: Julius Peter, Winfried Heidrich, Dirk Gross, Heinrich Sandau
  • Method for making a rubber base composition containing silicic acid
    Publication number: 20020123555
    Abstract: A method for making a silicic acid containing rubber base composition includes providing composition ingredients of rubber, silicic acid, silane and additional additives except for vulcanization ingredients. First and second mixers separate from each other are provided wherein the ingredients except for the vulcanization ingredients can be mixed. All of the composition ingredients are introduced into the first mixer except for the vulcanization ingredients simultaneously or at time intervals. The composition ingredients introduced into the first mixer are mixed to a composition. The composition formed in the first mixer is transferred directly into the second mixer without an intermediate storage thereof. The transferred composition formed in the first mixer is mixed at least almost to completion in the second mixer with the temperature lying in the temperature range of 130° C. to 180° C.
    Type: Application
    Filed: December 10, 2001
    Publication date: September 5, 2002
    Inventors: Julius Peter, Winfried Heidrich, Dirk Gross, Heinrich Sandau