Patents by Inventor Johann Stiegler KG, GmbH & Co.

Johann Stiegler KG, GmbH & Co. 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 and device for impregnating especially natural stones
    Patent number: 4620989
    Abstract: Method and device for impregnating plates (5) with a dispersion (D), whereby the plates (5) are saturated with dispersant (M) in a device (1) and the plates (5) are dried with dry air in a drying system (2) from the surfaces (51) to be impregnated down to a predetermined depth and then the dispersion (D) is introduced with an application device (3) into the dried area and the plates (5) subsequently dried.The application roller (3) is located in a vacuum chamber (7). The plates (5) are conveyed among the various devices (1, 2, 3, 4) with a continuous conveyor (6), a conveyor belt for example.
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: November 4, 1986
    Assignee: Johann Stiegler KG, GMBH & Co.
    Inventor: Johann Stiegler KG, GmbH & Co.