Patents by Inventor Herbert Krenchel

Herbert Krenchel 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).

  • Patent number: 7244115
    Abstract: Shaped bodies of particulate material are produced by introducing an easily flowable slurry of water and particulate material into a mold with perforated walls and applying a sufficiently high pressure to the slurry in the mold so as to express a sufficient proportion of the liquid to allow physical contact and interengagement between the particles. The extrusion is carried out continuously in an extension process including: (A) introducing the slurry under high pressure, (B) conveying the slurry through a shaping section to (C) a draining and consolidation section with drain holds or slits (3), to leave the extruder through (E) an exit section in the form of a solid body (4).
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: July 17, 2007
    Assignee: 3H Inventors ApS
    Inventors: Herbert Krenchel, Helge Fredslund-Hansen, Henrik Stang
  • Publication number: 20020140123
    Abstract: Shaped bodies of particulate material produced by introducing an easily flowable slurry of water and particulate material into a mold with perforated walls and applying a sufficiently high pressure to the slurry in the mold so as to express a sufficient proportion of the liquid to allow physical contact and interengagement between the particles. The method may be carried out continuously in an extension process including: (A) introducing the slurry under high pressure, (B) conveying the slurry through a shaping section to (C) a draining and consolidation section with drain holds or slits (3), to leave the extruder through (E) an exit section in the form of a solid body (4).
    Type: Application
    Filed: June 3, 2002
    Publication date: October 3, 2002
    Inventors: Herbert Krenchel, Helge Fredslund-Hansen, Henrik Stang
  • Publication number: 20020142057
    Abstract: Shaped bodies of particulate material are produced by introducing an easily flowable slurry of water and particulate material into a mold with perforated walls and applying a sufficiently high pressure to the slurry in the mold so as to express a sufficient proportion of the liquid to allow physical contact and interengagement between the particles. The extrusion is carried out continuously in an extension process including: (A) introducing the slurry under high pressure, (B) conveying the slurry through a shaping section to (C) a draining and consolidation section with drain holds or slits (3), to leave the extruder through (E) an exit section in the form of a solid body (4).
    Type: Application
    Filed: June 3, 2002
    Publication date: October 3, 2002
    Inventors: Herbert Krenchel, Helge Fredslund-Hansen, Henrik Stang
  • Patent number: 6398998
    Abstract: A method for producing shaped bodies of particulate material by introducing an easily flowable slurry of water and particulate material into a mold with perforated walls and by applying a sufficiently high pressure to the slurry in the mold so as to express a sufficient proportion of the liquid to allow physical contact and interengagement between the particles. The method may be carried out continuously in an extrusion process including introducing the slurry under high pressure into a extruder and conveying the slurry through a shaping section of the extruder to a draining and consolidation section of the extruder with drain holes and slits whereby a non-flowable, consolidated, shaped body leaves the extruder through an exit section.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: June 4, 2002
    Assignee: 3H Inventors ApS
    Inventors: Herbert Krenchel, Helge Fredslund-Hansen, Henrik Stang