Patents by Inventor Alfons Zehndbauer

Alfons Zehndbauer 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).

  • Compression bar for a textile machine drafting device
    Patent number: 5689858
    Abstract: A compression bar for use in the main drafting zone of drafting rollers of the textile industry. The invention considerably reduces deposits on a compression bar. The fixed compression bar has a rectangular cross-section, with its narrow faces being rounded off. On the other hand, the compression bar is rotatably mounted about its longitudinal axis, whereby the compression bar has preferably a circular cross-section.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: November 25, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Friedrich Hauner, Alfons Zehndbauer
  • Compression rod having rectangular shape
    Patent number: 5608948
    Abstract: The instant invention relates to a compression bar such as is used in the main drafting zone of drafting rollers of the textile industry. The invention considerably reduces deposits on a compression bar. The fixed compression bar has a rectangular cross-section, with its narrow faces being rounded off. On the other hand, the compression bar is rotatably mounted about its longitudinal axis, whereby the compression bar has preferably a circular cross-section.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: March 11, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Friedrich Hauner, Alfons Zehndbauer
  • Open-end spinning device
    Patent number: 5098205
    Abstract: An open-end spinning device with a spinning rotor (1) which is supported via its shaft (11) by support disks (4) and upon which an axially acting force is exerted is provided for its axial support with an aerostatic thrust bearing (6) with a bearing plate which interacts with the end of the shaft. The escape of air into the bearing gap takes place through the bearing plate (63) which together with the end of the rotor shaft (11) constitutes a low-friction pairing of materials.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: March 24, 1992
    Assignee: Schubert & Salzer Maschinenfabrik Aktiengesellschaft
    Inventors: Alfons Zehndbauer, Josef Breitenhuber