Patents by Inventor Helmut Wollinger

Helmut Wollinger 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).

  • Publication number: 20230008607
    Abstract: An opening roller housing (1) for an opening roller (2) of an open-end spinning machine (3) has a feed opening (4) for feeding a fiber material (5) into the opening roller housing (1), a delivery opening (6) for drawing opened individual fibers (7) out of the opening roller housing (1), a trash removal opening (8) for extracting trash (9) out of the fiber material (5), and an inner circumferential wall (10), which surrounds the opening roller (2) during operation and has a fiber-guiding area (11), which extends from the feed opening (4), over the trash removal opening (8), and up to the delivery opening (6). The opening roller housing (1) includes a hollow cylindrical ring (12).
    Type: Application
    Filed: July 7, 2022
    Publication date: January 12, 2023
    Inventors: Markus Kuebler, Siegfried Krohmer, Bernd Loos, Frank Riedel, Helmut Wollinger, Constantin Rieger
  • Patent number: 10167577
    Abstract: A channel plate adapter is provided for use in a cover of a rotor housing of an open-end spinning device, wherein a rotor is rotatably arranged in the rotor housing. The channel plate adapter includes an output fiber channel that conveys fibers to the rotor, the output fiber channel having an inlet side where fibers enter and an outlet side from which the fibers exit towards the rotor. The output fiber channel further includes a bend between the inlet side and the outlet side, the bend splitting the output fiber channel into a first section formed between the inlet side and the bend, and a second section formed between the bend and the outlet side. The bend changes direction of the second section relative to the first section such that the second section is oriented against a direction of rotation of the rotor.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 1, 2019
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Siegfried Krohmer, Helmut Wollinger
  • Publication number: 20170081789
    Abstract: The invention relates to a channel plate adapter for use in a cover of a rotor housing of an open-end spinning device, whereas a rotor (2) is rotatably arranged in the rotor housing, with an output fiber channel (3), which conveys fibers (4) to the rotor (2), whereas the fibers (4) enter at an inlet side (5) of the output fiber channel (3), from which the fibers (4) exit at an outlet side (6) of the output fiber channel (3) to the rotor (2). In accordance with the invention, the output fiber channel (3) features a bend (7) between the inlet side (5) and the outlet side (6), whereas the bend (7) bends a second section (9) of the output fiber channel (3), which is formed between the bend (7) and the outlet side (6) in respect of a first section (8) of the the output fiber channel (3), which is formed between the first bend (7) and the inlet side, against the direction of rotation (DR) of the rotor (2).
    Type: Application
    Filed: September 21, 2016
    Publication date: March 23, 2017
    Inventors: Siegfried Krohmer, Helmut Wollinger