Patents by Inventor Detlef Bennewitz

Detlef Bennewitz 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).

  • METHOD AND APPARATUS FOR DISCHARGING A CONTROLLED AMOUNT OF CRYOGEN ONTO WORK SURFACES IN A COLD ROLL MILL
    Publication number: 20120000213
    Abstract: The present invention is directed to a method and apparatus for adjusting the amount of cryogen delivered to a mill stand (1) using a non-optical sensor (16a) to measure at least one operating parameter selected from the group consisting of roll stand parameters, rolled product parameters, and cryogen parameters. Output signals, are generated by the non-optical sensor and a controller (17) calculates numeric values based on the signals. When the calculated numeric values reach a predetermined set point value that correlates with mill stand temperature, the flow of cryogen is adjusted to disperse a desired amount of cryogenic fluid to said mill stand (1) to control rolling temperature.
    Type: Application
    Filed: August 27, 2008
    Publication date: January 5, 2012
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Minfa Lin, Michael Dennis Lanyi, Guido Plicht, Robert James Edwards, Harald Schillak, Detlef Bennewitz
  • METHOD AND APPARATUS FOR DISCHARGING A NON-LINEAR CRYOGEN SPRAY ACROSS THE WIDTH OF A MILL STAND
    Publication number: 20110036555
    Abstract: A method and apparatus for determining a non-linear cryogenic cooling profile (16) for the purpose of improving rolled product (5) uniformity based on at least one operating parameter in a cold rolling process; and generating the non-linear cryogenic cooling profile (16) as a function of throttling gas pressure.
    Type: Application
    Filed: August 27, 2008
    Publication date: February 17, 2011
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Guido Plicht, Robert James Edwards, Michael Dennis Lanyi, Zbigniew Zurecki, Detlef Bennewitz, Harald Schillak