Patents by Inventor Peter C. Boldt

Peter C. Boldt 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 apparatus for applying horizontal markings to roads or other traffic areas
    Patent number: 5544972
    Abstract: In the method for applying horizontal markings to road surfaces, a water-thinnable emulsion paint which is acid-coagulable is used and is brought into contact with an acid. This acid is scattered or sprayed onto or into the sprayed paint, the acid being in the form of an aqueous solution, a powder or particles wetted with acid. The method brings about drying within one or a few minutes. Using road-marking vehicles, horizontal markings can thus be put down with virtually no closing-off of the mobile operations site.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: August 13, 1996
    Assignee: Plastiroute S.A.
    Inventor: Peter C. Boldt