Patents by Inventor August Nobis

August Nobis 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).

  • Apparatus for internally coating pipes
    Patent number: 4774905
    Abstract: An apparatus for coating the internal surfaces of pipes comprises two pigs which engage against the internal pipe surfaces and are movable through the pipe, and which define an intermediate zone therebetween for receiving the coating material. A spraying device capable of spraying material in the radial direction is connected to the intermediate zone via a material feed line. Upon being drawn through the pipe, the coating material is fed to the spraying device which atomizes the material and conveys it to the internal surfaces of the pipe.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: October 4, 1988
    Assignee: Hermann Hanschen
    Inventor: August Nobis