Patents by Inventor Marc Knackstedt

Marc Knackstedt 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).

  • Device and process for cleaning, activation or pretreatment of work pieces by means of carbon dioxide blasting
    Patent number: 7967664
    Abstract: The invention relates to a device and method for cleaning, activating or pre-treating workpieces by blasting a carbon dioxide snow which is produced from pressurized CO2-containing fluids and at least one type of carrying compressed gas and is accelerated by means of a discharge nozzle (14), wherein a two-phase carbon dioxide mixture of a carbon dioxide gas and carbon dioxide particles is produced in an agglomeration chamber (8) by agglomerating and compressing carbon dioxide snow crystals which are radially added to the carrying gas in a multistage mixing chamber (10, 11, 12) comprising a central jet pipe (4), around which the carbon dioxide mixture circulates and which is used for supplying said carrying gas in such a manner that a high-energy turbulent gas flow for processing a workpiece is obtainable.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: June 28, 2011
    Assignee: CryoSnow GmbH
    Inventors: Felix Elbing, Raphael Rotstein, Marc Knackstedt
  • Device and Process for Cleaning, Activation or Pretreatment of Work Pieces by Means of Carbon Dioxide Blasting
    Publication number: 20080092923
    Abstract: The invention relates to a device and method for cleaning, activating or pre-treating workpieces by blasting a carbon dioxide snow which is produced from pressurized CO2-containing fluids and at least one type of carrying compressed gas and is accelerated by means of a discharge nozzle (14), wherein a two-phase carbon dioxide mixture of a carbon dioxide gas and carbon dioxide particles is produced in an agglomeration chamber (8) by agglomerating and compressing carbon dioxide snow crystals which are radially added to the carrying gas in a multistage mixing chamber (10, 11, 12) comprising a central jet pipe (4), around which the carbon dioxide mixture circulates and which is used for supplying said carrying gas in such a manner that a high-energy turbulent gas flow for processing a workpiece is obtainable.
    Type: Application
    Filed: November 28, 2005
    Publication date: April 24, 2008
    Applicant: CRYOSNOW GMBH
    Inventors: Felix Elbing, Raphael Rotstein, Marc Knackstedt