Patents by Inventor Nicolaas J. Thijssen

Nicolaas J. Thijssen 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).

  • Equipment for emission-free operation of a coking plant
    Patent number: 4231845
    Abstract: Injection of steam into the ascension pipe of each coking chamber in a coking plant is continued for a period of time after charging of that chamber so as to create a slightly sub-atmospheric pressure in the chamber during the initial stage of the coking process, in order to reduce leakage of gas and fumes to the atmosphere past the doors and filling openings. A time clock operated by the coke pusher machine or by the coal charging machine stops this injection of steam after a desired period of time.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: November 4, 1980
    Assignee: Hoogovens Ijmuiden, B.V.
    Inventors: Timen Vander, Nicolaas J. Thijssen, Jan F. de Blok, Jan Middel