Patents by Inventor Gernot Lederer

Gernot Lederer 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).

  • Highly insulating and fireproof coating materials for casting moulds
    Patent number: 8088208
    Abstract: The present invention relates to wash compositions which comprise a solvent component and a solids component wherein the solvent component comprises as main component water or one or more alcohols, and the solids component comprises as main component a mixture of metakaolinite and pyrophyllite, which can be applied onto casting molds, casting molds comprising these wash compositions and the use thereof, in particular in centrifugal casting processes and large-scale casting processes.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: January 3, 2012
    Assignee: Ashland-Sudchemie-Kernfest GmbH
    Inventors: Reinhard Stötzel, Herbert Pitamitz, Gernot Lederer
  • Coating materials for cores
    Patent number: 7717994
    Abstract: The invention relates to coating material comprising a water-soluble salt as a filler. Such materials are especially suitable as core washes for salt cores for using in foundry technology.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: May 18, 2010
    Assignee: Ashland-Sudchemie-Kernfest GmbH
    Inventors: Herbert Pitamitz, Gernot Lederer
  • Highly Insulating and Fireproof Coating Materials for Casting Moulds
    Publication number: 20090014145
    Abstract: The present invention relates to wash compositions which comprise a solvent component and a solids component wherein the solvent component comprises as main component water or one or more alcohols, and the solids component comprises as main component a mixture of metakaolinite and pyrophyllite, which can be applied onto casting moulds, casting moulds comprising these wash compositions and the use thereof, in particular in centrifugal casting processes and large-scale casting processes.
    Type: Application
    Filed: December 2, 2005
    Publication date: January 15, 2009
    Applicant: ASHLAND-SÜDCHEMIE-KERNFEST GMBH
    Inventors: Reinhard Stotzel, Herbert Pitamitz, Gernot Lederer
  • Coating materials for cores
    Publication number: 20070000410
    Abstract: The invention relates to coating material comprising a water-soluble salt as a filler. Such materials are especially suitable as core washes for salt cores for using in foundry technology.
    Type: Application
    Filed: February 10, 2004
    Publication date: January 4, 2007
    Inventors: Herbert Pitamitz, Gernot Lederer
  • Cold hardening binding agent for particulate solids, such as molding sand, containing a nitrogen basic polyol
    Patent number: 4273910
    Abstract: A cold hardening binding agent for binding particulate solid materials is based on a mixture of a polyhydroxy compound and a polyisocyanate, and the polyhydroxy compound consists at least in part of a nitrogen basic polyol. The nitrogen basic polyol accelerates reaction and hardening time. An alkali or alkaline earth metal acetate or formate may also be employed to accelerate hardening.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: June 16, 1981
    Assignee: Woellner-Werke
    Inventor: Gernot Lederer