Patents by Inventor Klaus-Michael Hessler

Klaus-Michael Hessler 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 for the production of calcium hydrosilicate bonded shaped articles
    Patent number: 5340513
    Abstract: A method and composition for the preparation of calcium silicate bounded shaped articles comprising mixing SiO.sub.2 containing powder, unslaked or slaked lime, calcium hydroxide, with a waste paper pulper slurry containing cellulosic particle of less than 1.1 mm in length is described. Additionally, Portland cement, alumina cement, calcium sulfate anhydride, plaster of Paris, a foam, and a thermally activated accelerator may also be added to the mixture which is then shaped into blanks, and autoclaved.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: August 23, 1994
    Assignee: SICOWA Verfahrenstechnik fur Baustoffe GmbH & Co., KG
    Inventors: Thomas Koslowski, Klaus-Michael Hessler, Olaf Musebrink