Patents by Inventor Ferdinand Leitsch

Ferdinand Leitsch 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 producing foaming substances, especially foaming cement substances, and corresponding device
    Patent number: 6425950
    Abstract: The invention relates to a method for producing foaming substances, especially foaming cement substances, consisting essentially of a starting product, especially cement paste, and a foaming agent. The inventive substances are produced in a mixing reactor which is connected to a supply container for the starting product by a feed pump. A product flow taken from the mixing reactor is conveyed to the supply container in a circuit, the foaming agent and atmospheric air being added and the supply container being kept at a minimum level. After a mixing phase, a sub-flow is taken from the product flow for processing.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: July 30, 2002
    Inventor: Ferdinand Leitsch