Patents by Inventor Jorg Dietmar Weigandt

Jorg Dietmar Weigandt 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).

  • Pipe and device for thermally cleaving hydrocarbons
    Patent number: 11220635
    Abstract: The invention relates to a pipe for thermal cracking of hydrocarbons in the presence of steam, in which the feed mixture is guided through externally heated pipes, wherein the pipe extends along a longitudinal axis and has a number NT of grooves that have been introduced into the inner surface of the pipe and extend in a helix around the longitudinal axis along the inner surface, the inner surface into which the grooves have been introduced, in a cross section at right angles to the longitudinal axis, has a diameter Di and a radius r1=Di/2, the grooves in the cross section at right angles to the longitudinal axis, in their groove base, each have the form of a circular arc and the circular arc has a radius r2, and the grooves each have a groove depth TT which, in the cross section at right angles to the longitudinal axis, corresponds in each case to the smallest distance between the circle having the diameter Di on which the inner surface lies and the center of which lies on the longitudinal axis, and the
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: January 11, 2022
    Assignee: SCHMIDT + CLEMENS GMBH + CO. KG
    Inventors: Dietlinde Jakobi, Steffen Alexander Heyland, Jorg Dietmar Weigandt
  • PIPE AND DEVICE FOR THERMALLY CLEAVING HYDROCARBONS
    Publication number: 20200190408
    Abstract: The invention relates to a pipe for thermal cracking of hydrocarbons in the presence of steam, in which the feed mixture is guided through externally heated pipes, wherein the pipe extends along a longitudinal axis and has a number NT of grooves that have been introduced into the inner surface of the pipe and extend in a helix around the longitudinal axis along the inner surface, the inner surface into which the grooves have been introduced, in a cross section at right angles to the longitudinal axis, has a diameter Di and a radius r1=Di/2, the grooves in the cross section at right angles to the longitudinal axis, in their groove base, each have the form of a circular arc and the circular arc has a radius r2, and the grooves each have a groove depth TT which, in the cross section at right angles to the longitudinal axis, corresponds in each case to the smallest distance between the circle having the diameter Di on which the inner surface lies and the center of which lies on the longitudinal axis, and the
    Type: Application
    Filed: April 4, 2018
    Publication date: June 18, 2020
    Inventors: Dietlinde Jakobi, Steffen Alexander Heyland, Jorg Dietmar Weigandt