Patents by Inventor Knud Sundgaard

Knud Sundgaard 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).

  • Cleaning installation and device for removing soot or similar deposits
    Patent number: 6588049
    Abstract: The present invention relates to a device for use in a cleaning installation for removing soot or similar inside deposits in a flow channel in a processing system such as a boiler, heat exchanger, flue gas filter or the like, by intermittently blasting a fluid or gaseous medium into the processing system, said device comprising a flow passage between the associated valve means and the flow channel, wherein the flow passage is provided with an inlet allowing for a continuous flow of protective gas around the flow passage into the flow channel in the processing system. By the present invention, corrosion is reduced since a cushion of air is generated at the end of the flow passage during off-cycles of the cleaning operation as air is constantly drawn or forced in through the inlet. This means that the components are covered by this cushion and protected against corrosive gasses in the heat exchanger or the like.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: July 8, 2003
    Assignee: OKR Cleaning
    Inventor: Knud Sundgaard
  • Device for use in a cleaning installation for removing soot similar deposits, a valve assembly and cleaning installation with such a device
    Publication number: 20010014992
    Abstract: The present invention relates to a device for use in a cleaning installation for removing soot or similar inside deposits in a flow channel in a processing system such as a boiler, heat exchanger, flue gas filter or the like, by intermittently blasting a fluid or gaseous medium into the processing system, said device comprising a flow passage between the associated valve means and the flow channel, wherein the flow passage is provided with an inlet allowing for a continuous flow of protective gas around the flow passage into the flow channel in the processing system. By the present invention, corrosion is reduced since a cushion of air is generated at the end of the flow passage during off-cycles of the cleaning operation as air is constantly drawn or forced in through the inlet. This means that the components are covered by this cushion and protected against corrosive gasses in the heat exchanger or the like.
    Type: Application
    Filed: February 1, 2001
    Publication date: August 23, 2001
    Applicant: OKR Cleaning
    Inventor: Knud Sundgaard