Patents by Inventor Ralf Ertl

Ralf Ertl 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).

  • Yarn treatment device and method
    Patent number: 11970794
    Abstract: The invention relates to a yarn treatment device for intermingling multifilament yarns by means of a pulsating air stream that is generated by a rotating cup ring having openings, characterized in that the drive motor and the support of the cup ring are located in the interior of the housing with the air supply channels thereof, and to a yarn treatment device for intermingling multifilament yarns by means of a pulsating air stream that is generated by a rotating cup ring having openings, characterized in that one or more nozzle inserts, through which the pulsating blown air flows, per thread run are arranged on the housing cup.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: April 30, 2024
    Assignee: Vandeweile nv
    Inventors: Andreas Mack, Ralf Ertl
  • Yarn Treatment Device and Method
    Publication number: 20200362487
    Abstract: The invention relates to a yarn treatment device for intermingling multifilament yarns by means of a pulsating air stream that is generated by a rotating cup ring having openings, characterized in that the drive motor and the support of the cup ring are located in the interior of the housing with the air supply channels thereof, and to a yarn treatment device for intermingling multifilament yarns by means of a pulsating air stream that is generated by a rotating cup ring having openings, characterized in that one or more nozzle inserts, through which the pulsating blown air flows, per thread run are arranged on the housing cup
    Type: Application
    Filed: October 4, 2018
    Publication date: November 19, 2020
    Inventors: Andreas Mack, Ralf Ertl