Patents by Inventor Johannes C. Korver

Johannes C. Korver 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).

  • Marking powder for and method of marking a metallic article
    Patent number: 5352278
    Abstract: A marking powder is disclosed for marking metallic bodies, in particular hot metallic bodies, which may be steel or other ferrous metal. Zinc is present in the marking powder in an amount 20 to 70% by weight, and it found that this results in improved legibility, which lasts for longer.The powder may be prepared by adding zinc powder to a known aluminum-based marking powder in an appropriate ratio.Coarse zinc powder was found to be better.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: October 4, 1994
    Assignee: Hoogovens Groep B.V.
    Inventors: Johannes C. Korver, Bala K. Paramanathan, Andries C. de Muijnck
  • 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