Patents by Inventor Markus Blomquist

Markus Blomquist 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).

  • Method and apparatus for wetting fibrous material
    Patent number: 6336992
    Abstract: A method and an apparatus for wetting fibrous material, such as coarsely shredded waste paper. Fibrous material and wetting fluid is introduced into a wetting enclosure. Pressure is decreased within the wetting enclosure for a short period of time for sucking out air from the fibrous material. Pressure is allowed to increase rapidly, whereby wetting fluid is sucked into cavities within the fibrous material and the material is efficiently wetted.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: January 8, 2002
    Inventor: Markus Blomquist
  • Method of recovering calcium from waste material or contaminated natural calcic material
    Patent number: 6193945
    Abstract: Method of recovering calcium carbonate from waste material or contained natural calcic material. Calcium is recovered by prepariag an aqueous suspension the material containing calcium to be recovered and by lowering the pH of the suspension to pH<6, preferably pH<4, for providing a spension including an acidic liquid phase containing the calcium compounds in soluble form. Thereafter the pH of the liquid is raised to pH>6, preferably pH>7, by mixing a base therein, for precipitating the main portion of aluminium therein. Thereafter the neutral or basic liquid phase is carbonized by introducing Na2CO3 or NaHCO3 therein, for precipitation of the calcium compounds as CaCO3.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: February 27, 2001
    Inventors: Markus Blomquist, Gunter Betz