Patents Assigned to Citadel Investments Limited
  • Patent number: 5726238
    Abstract: A material composed of carbon compounds may be shaped into high-quality moulded bodies, foils, plates, pipes or the like by all usual plastics processing machines, and may further be reused several times with no perceptible loss of quality. Above all, it may be disposed of by incineration with a high calorific value without fouling the incineration plants or polluting the atmosphere with toxic, harmful substances in an inadmissible manner.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: March 10, 1998
    Assignee: Citadel Investments Limited
    Inventor: Klaus-Dietrich Nickel
  • Patent number: 5009371
    Abstract: A rotary disintegration apparatus comprises a housing with a central material input and a material outlet that is open underneath, an inner rotor fixed to a first shaft and an outer rotor fixed to a second shaft on the same axis that rotates in the opposite direction, and blade rings that follow each other in alternation having blades which are inclined in the direction of rotation, which can be coated with a protective layer, which have front and rear edges of hard wear-resistant material, and which sit on one side on retaining rings and on the other side on assembly rings forming replaceable components of annular assembly ring carriers that are connected to the shafts.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: April 23, 1991
    Assignee: Citadel Investments Limited
    Inventor: Klaus-Dietrich Nickel