Patents by Inventor Berthold Trampusch

Berthold Trampusch 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 device for generating a two-phase gas-particle jet, in particular containing CO2 dry ice particles
    Patent number: 6695686
    Abstract: The present invention relates to a method and a device for generating a two-phase gas-particle jet for treating surfaces by means of particles, in particular CO2 dry ice particles (22), using a two-phase gas-particle jet. To this end, the CO2 dry ice particles (22) are fed with a, tangential flow to a blasting chamber (30) in such a manner that the CO2 dry ice particles (22) are forced into a rotational movement about an axis of flow (50), the angular velocity of this rotational movement then being increased in the direction of flow by means of a blasting nozzle (40), so that maximum speeds occur in the blasting-nozzle outlet (42). The two-phase gas-particle jet emerging from the blasting-nozzle outlet (42) is formed in such a way that the solid-phase CO2 dry ice particles (22) are arranged in a uniform ring shape with an enlarged external diameter. The invention achieves in particular a considerable rise in the surface power when cleaning surfaces by means of CO2 dry ice particles (22).
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: February 24, 2004
    Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Hans Frohlich, Sabine Gebhardt, Berthold Trampusch
  • Apparatus for cleaning an inner wall of a mold
    Patent number: 6004190
    Abstract: A method and an associated apparatus for cleaning an inner wall of a mold part includes forming a chamber between displaced mold parts by introducing a casing between the mold parts. The casing enclosures a blasting device for introducing a blasting nozzle which directs a cleaning jet at the inner wall. The chamber encapsulates noise and particles which are produced during the cleaning process.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: December 21, 1999
    Assignee: L'Air Liquide, Societe Anonyme pour E'tude et l'Exploitation des Procedes Georges Claude
    Inventor: Berthold Trampusch
  • Method of cleaning an inner wall of a mold by means of dry ice
    Patent number: 5932026
    Abstract: A method for cleaning an inner wall of a mold part includes forming a chamber between displaced mold parts by introducing a casing between the mold parts. The casing enclosures a blasting device for introducing a blasting nozzle which directs a cleaning jet at the inner wall. The chamber encapsulates noise and particles which are produced during the cleaning process.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: August 3, 1999
    Assignee: L'Air Liquide
    Inventor: Berthold Trampusch