Patents by Inventor Lothar Scheller

Lothar Scheller 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).

  • IMPROVEMENT OF THE MECHANICAL PROPERTIES OF WATERPROOFED GYPSUM BOARDS WITH POLYDIMETHYLSILOXANES
    Publication number: 20210403380
    Abstract: A waterproofed gypsum board and associated method are provided, featuring the use of a mixture of magnesium oxide and a gypsum crystal modifier for improving the resistance to sagging of the waterproofed gypsum board, in particular, in moist and warm climatic conditions.
    Type: Application
    Filed: November 19, 2018
    Publication date: December 30, 2021
    Inventors: Hans WINTRICH, Janos LOTZ, Lothar SCHELLER, Simon GRÖNINGER
  • GYPSUM FIBER BOARD AND METHOD FOR PRODUCING GYPSUM FIBER BOARDS
    Publication number: 20200181022
    Abstract: A gypsum fiber board produced in a Siempelkamp dry-process, comprising 75 wt % to 90 wt % (relative to the total dry mix) of calcium sulfate hemi-hydrate and 10 wt % to 25 wt % (relative to the total dry mix) paper fibers, wherein the calcium sulfate hemi-hydrate is a mixture of ?-calcium sulfate hemi-hydrate and ?-calcium sulfate hemi-hydrate, wherein the content of ?-calcium sulfate hemi-hydrate in the mixture is at least 5 wt % (relative to the total calcium sulfate hemi-hydrate) is disclosed. Also disclosed is a method for producing a gypsum fiber board of a thickness of 23 mm in a Siempelkamp dry-process.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 11, 2020
    Inventors: Wolfgang Voigt, Lothar Scheller, Jurgen Burczeck, Vladimir Tsvetanov, Vanya Ivanova-Tsaneva
  • Gypsum fiber board and method for producing gypsum fiber boards
    Patent number: 10562817
    Abstract: A gypsum fiber board produced in a Siempelkamp dry-process, comprising 75 wt % to 90 wt % (relative to the total dry mix) of calcium sulfate hemi-hydrate and 10 wt % to 25 wt % (relative to the total dry mix) paper fibers, wherein the calcium sulfate hemi-hydrate is a mixture of ?-calcium sulfate hemi-hydrate and ?-calcium sulfate hemi-hydrate, wherein the content of ?-calcium sulfate hemi-hydrate in the mixture is at least 5 wt % (relative to the total calcium sulfate hemi-hydrate) is disclosed. Also disclosed is a method for producing a gypsum fiber board of a thickness of 23 mm in a Siempelkamp dry-process.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 18, 2020
    Assignee: Knauf Gips KG
    Inventors: Wolfgang Voigt, Lothar Scheller, Jurgen Burczeck, Vladimir Tsvetanov, Vanya Ivanova-Tsaneva
  • GYPSUM FIBER BOARD AND METHOD FOR PRODUCING GYPSUM FIBER BOARDS
    Publication number: 20170362126
    Abstract: A gypsum fiber board produced in a Siempelkamp dry-process, comprising 75 wt % to 90 wt % (relative to the total dry mix) of calcium sulfate hemi-hydrate and 10 wt % to 25 wt % (relative to the total dry mix) paper fibers, wherein the calcium sulfate hemi-hydrate is a mixture of ?-calcium sulfate hemi-hydrate and ?-calcium sulfate hemi-hydrate, wherein the content of ?-calcium sulfate hemi-hydrate in the mixture is at least 5 wt % (relative to the total calcium sulfate hemi-hydrate) is disclosed. Also disclosed is a method for producing a gypsum fiber board of a thickness of 23 mm in a Siempelkamp dry-process.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 21, 2017
    Inventors: Wolfgang Voigt, Lothar Scheller, Jurgen Burczeck, Vladimir Tsvetanov, Vanya Ivanova-Tsaneva
  • Gypsum plaster board and a method for producing a gypsum plaster board
    Patent number: 9283732
    Abstract: Gypsum plaster board, containing a gypsum matrix and 0.1 to 10% by weight carbon particles, wherein the particle size (d50) of the carbon particles ranges from 0.5 to 4 mm.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: March 15, 2016
    Assignee: Knauf Gips KG
    Inventors: Hans-Ulrich Hummel, Lothar Scheller, Dietmar Stich
  • GYPSUM PLASTER BOARD AND A METHOD FOR PRODUCING A GYPSUM PLASTER BOARD
    Publication number: 20120305162
    Abstract: Gypsum plaster board, containing a gypsum matrix and 0.1 to 10% by weight carbon particles, wherein the particle size (d50) of the carbon particles ranges from 0.5 to 4 mm.
    Type: Application
    Filed: February 8, 2011
    Publication date: December 6, 2012
    Applicant: KNAUF GIPS KG
    Inventors: Hans-Ulrich Hummel, Lothar Scheller, Dietmar Stich