Patents by Inventor Siegfried Krolmann

Siegfried Krolmann 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).

  • Tubular apparatus, in particular a steam generator
    Patent number: 3937277
    Abstract: A tubular apparatus, particularly a steam generator, in which U-shaped or straight tubes are inserted in the casing. A series of gratings are provided in the casing and comprise parallel grating elements made up of grating bars and cross-bars formed to firmly hold the tubes in place and separate them from one another. Facilitation of inserting the tubes in the casing is accomplished by emplacing grating elements corresponding to grating elements in other gratings first and continuing in a like manner.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: February 10, 1976
    Assignee: Gutehoffnungshutte Sterkrade Aktiengesellschaft
    Inventors: Siegfried Krolmann, Bruno Heinen