Patents by Inventor Sadan Deral

Sadan Deral 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).

  • Pressurized chamber doctor blade
    Patent number: 6872257
    Abstract: The invention pertains to a pressure chamber scraper for application of a liquid medium onto a rotating drum, said pressure chamber scraper having an axially extending scraper head, that together with an axially extending dosing scraper touching the mantle surface of the drum and with a sealing scraper forms a chamber in the circumferential direction, in said chamber there is an axially extending displacement element to form a pressure compartment and an outlet compartment and leaving an application gap to the mantle surface of the drum, and the liquid medium for wetting of the mantle surface flows through said gap, wherein the medium is supplied through an inlet opening into the pressure compartment. According to the invention, it is proposed that the displacement element and scraper head have mutually facing contact surfaces which bound at least one gap between them which opens into the pressure compartment and connects it to the inlet opening, so that the medium can move into the pressure compartment.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 29, 2005
    Assignee: Maschinenfabrik Max Kroenert GmbH & Co.
    Inventors: Bernd Martens, Sadan Deral, Wolfram Szczepaniak, Nils Hansen
  • Pressurized chamber doctor blade
    Publication number: 20030084842
    Abstract: The invention pertains to a pressure chamber scraper for application of a liquid medium onto a rotating drum, said pressure chamber scraper having an axially extending scraper head, that together with an axially extending dosing scraper touching the mantle surface of the drum and with a sealing scraper forms a chamber in the circumferential direction, in said chamber there is an axially extending displacement element to form a pressure compartment and an outlet compartment and leaving an application gap to the mantle surface of the drum, and the liquid medium for wetting of the mantle surface flows through said gap, wherein the medium is supplied through an inlet opening into the pressure compartment. According to the invention, it is proposed that the displacement element and scraper head have mutually facing contact surfaces which bound at least one gap between them which opens into the pressure compartment and connects it to the inlet opening, so that the medium can move into the pressure compartment.
    Type: Application
    Filed: August 30, 2002
    Publication date: May 8, 2003
    Inventors: Bernd Martens, Sadan Deral, Wolfram Szczepaniak, Nils Hansen