Patents by Inventor Johannes Frederik Boer

Johannes Frederik Boer 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: 7842208
    Abstract: A method for spinning a multifilament yarn from a thermoplastic material, where the filament bundle is cooled below the spinneret in a first cooling zone, first of all by means of at least one transverse blowing operation with a gaseous cooling medium and by means of an extraction means for the gaseous cooling medium which lies opposite said transverse blowing means, and subsequently the filament bundle is cooled further in a second cooling zone below the first cooling zone by automatic suction of gaseous cooling medium which is situated in the vicinity of the filament bundle.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: November 30, 2010
    Assignee: Diolen Industrial Fibers B.V.
    Inventors: Bastiaan Krins, Johannes Frederik Boer
  • Publication number: 20100269478
    Abstract: A method for spinning a multifilament yarn from a thermoplastic material, where the filament bundle is cooled below the spinneret in a first cooling zone, first of all by means of at least one transverse blowing operation with a gaseous cooling medium and by means of an extraction means for the gaseous cooling medium which lies opposite said transverse blowing means, and subsequently the filament bundle is cooled further in a second cooling zone below the first cooling zone by automatic suction of gaseous cooling medium which is situated in the vicinity of the filament bundle.
    Type: Application
    Filed: July 8, 2010
    Publication date: October 28, 2010
    Applicant: DIOLEN INDUSTRIAL FIBERS B.V.
    Inventors: Bastiaan Krins, Johannes Frederik Boer
  • Publication number: 20100186364
    Abstract: A method for spinning a multifilament yarn from a thermoplastic material, where the filament bundle is cooled below the spinneret in a first cooling zone, first of all by means of at least one transverse blowing operation with a gaseous cooling medium and by means of an extraction means for the gaseous cooling medium which lies opposite said transverse blowing means, and subsequently the filament bundle is cooled further in a second cooling zone below the first cooling zone by automatic suction of gaseous cooling medium which is situated in the vicinity of the filament bundle.
    Type: Application
    Filed: July 16, 2008
    Publication date: July 29, 2010
    Inventors: Bastiaan Krins, Johannes Frederik Boer
  • Publication number: 20100175361
    Abstract: A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely, the cooling medium leaving the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone, the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.
    Type: Application
    Filed: March 26, 2010
    Publication date: July 15, 2010
    Applicant: DIOLEN INDUSTRIAL FIBERS B.V.
    Inventors: Hendrik MIDDELJANS, Eric HEUVELING, Bastiaan KRINS, Johannes Frederik BOER
  • Patent number: 7731876
    Abstract: A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely, the cooling medium leaving the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone, the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: June 8, 2010
    Assignee: Diolen Industrial Fibers B.V.
    Inventors: Hendrik Middeljans, Eric Heuveling, Bastiaan Krins, Johannes Frederik Boer