Patents by Inventor Jan F. de Blok

Jan F. de Blok 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).

  • Temper mill installation and shearing machine for use in such an installation
    Patent number: 5079941
    Abstract: A temper mill installation for steel strip has an uncoiler, a rolling mill for the strip, a shearing machine for cutting the strip to remove damaged turns at the end of a coil and a coiler for coiling the strip after rolling. To avoid wastage of sheet, the shearing machine has a movable shearing head and is positioned adjacent the strip path between the uncoiler and the rolling mill. The shearing head is movable across the strip path to effect cutting of the strip.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: January 14, 1992
    Assignee: Hoogovens Groep BV
    Inventors: Jan F. De Blok, Johannes C. Korver
  • 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