Patents by Inventor Werner Wellie

Werner Wellie 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).

  • Means for the production of a multi-component plastics material
    Patent number: 4232974
    Abstract: Foam generating equipment for use in mines includes supply vessels for the resin and foaming agent located in a central stores location. An air compressor is also located there. A pair of pumps in a protective casing transportable by an operator have inputs receiving the resin and foaming agent and outputs connected to a foaming gun. The pumps have a common power supply connection coupled to the air compressor. The pumps in the casing are carried by the operator and deposited at a temporary location in proximity to the site where the foam is to be emplaced. The spray gun is then operated to emplace the foam at the site.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: November 11, 1980
    Assignees: Ruhrkohle, A.G., Schaum-Chemie W. Bauer K.G.
    Inventors: Ludwig Schmidt, Werner Wellie