Patents by Inventor Olaf JOHANNSMANN

Olaf JOHANNSMANN 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).

  • Process and apparatus for calcination of gypsum
    Patent number: 10676396
    Abstract: The invention pertains to a process for modifying gypsum, wherein a continuous feed of raw gypsum is provided; the water content of the raw gypsum is determined in the continuous feed by near infrared spectroscopy (NIR) measurement; the raw gypsum is calcined in a calcination unit at a fire rate to remove water from the raw gypsum and to obtain a continuous feed of calcined gypsum having a water content within a selected range; a water content of the calcined gypsum is determined by near infrared spectroscopy, and the fire rate is adjusted based on the water content of the raw gypsum and of the calcined gypsum. Further, the invention pertains to an apparatus for performing said process.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 9, 2020
    Assignee: KNAUF GIPS KG
    Inventors: Olaf Johannsmann, Rainer Schulte, Juan Jose Ruiz
  • PROCESS AND APPARATUS FOR CALCINATION OF GYPSUM
    Publication number: 20190330106
    Abstract: The invention pertains to a process for modifying gypsum, wherein a continuous feed of raw gypsum is provided; the water content of the raw gypsum is determined in the continuous feed by near infrared spectroscopy (NIR) measurement; the raw gypsum is calcined in a calcination unit at a fire rate to remove water from the raw gypsum and to obtain a continuous feed of calcined gypsum having a water content within a selected range; a water content of the calcined gypsum is determined by near infrared spectroscopy, and the fire rate is adjusted based on the water content of the raw gypsum and of the calcined gypsum. Further, the invention pertains to an apparatus for performing said process.
    Type: Application
    Filed: November 18, 2016
    Publication date: October 31, 2019
    Applicant: KNAUF GIPS KG
    Inventors: Olaf JOHANNSMANN, Rainer SCHULTE, Juan Jose RUIZ