Patents by Inventor Norbert Luebbe

Norbert Luebbe 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 for lowering flow noises
    Patent number: 10794341
    Abstract: A device (1) for lowering flow noises has opposed first and second connection pieces (2, 3), and outer and inner sleeves (4, 5) between the connection pieces. A radial collar (6) is between the sleeves (4, 5) and forms separated volume chambers. Openings (11) in the inner sleeve (5) connect the volume chambers to a line space (13) enclosed by the inner sleeve (5). A sealing ring (15) at the free end (14) of the collar (6) defines a ring cap with a lateral surface (21) that reaches over the collar (6) and seals against the sleeve (4, 5) adjacent the free end (14) of the collar (6) and that has a surface (23, 26) that seals against either an end face (25) of the collar (6) or a side surface (28) of the collar (6) extending parallel to the radial collar (6).
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: October 6, 2020
    Assignees: UMFOTEC GMBH
    Inventors: Ralf Buck, Michael Heuer, Dirk Nagel, Philipp Troeger, Norbert Luebbe
  • DEVICE FOR LOWERING FLOW NOISES
    Publication number: 20180223779
    Abstract: A device (1) for lowering flow noises has opposed first and second connection pieces (2, 3), and outer and inner sleeves (4, 5) between the connection pieces. A radial collar (6) is between the sleeves (4, 5) and forms separated volume chambers. Openings (11) in the inner sleeve (5) connect the volume chambers to a line space (13) enclosed by the inner sleeve (5). A sealing ring (15) at the free end (14) of the collar (6) defines a ring cap with a lateral surface (21) that reaches over the collar (6) and seals against the sleeve (4, 5) adjacent the free end (14) of the collar (6) and that has a surface (23, 26) that seals against either an end face (25) of the collar (6) or a side surface (28) of the collar (6) extending parallel to the radial collar (6).
    Type: Application
    Filed: July 29, 2016
    Publication date: August 9, 2018
    Inventors: Ralf Buck, Michael Huer, Dirk Nagel, Philipp Troeger, Norbert Luebbe