Patents by Inventor Wolfgang Fleischer

Wolfgang Fleischer 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).

  • Vacuum cleaner hose
    Patent number: 4524808
    Abstract: A supplementary hose attached to a main vacuum cleaner hose for carrying an electrical line is seated in a groove formed in the outside surface of the main vacuum cleaner hose. To increase the flexibility of the vacuum cleaner hose in all directions, the wall of the supplementary hose is perforated.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: June 25, 1985
    Assignees: Siemens Aktiengesellschaft, Technochemie Kessler & Co. GmbH
    Inventors: Wolfgang Fleischer, Leo Eichelberger, Georg Endress