Patents by Inventor Beat Kälin

Beat Kälin 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).

  • Blocking apparatus for a fire damper, blocking apparatus system and method for blocking a drive direction
    Patent number: 11957943
    Abstract: Various embodiments include a blocking apparatus comprising: a holding apparatus; a receiving element mounted in the holding apparatus about an axis of rotation, defining a through-opening with a through-axis parallel to the axis of rotation; a wrap spring mechanically prestressed in the holding apparatus, with a winding arranged around the receiving element; and a thermocouple made of a material having a lower melting temperature than the holding apparatus and/or the wrap spring. The thermocouple holds at least one end of the wrap spring with respect to the holding apparatus in the prestressed state in such a way that the receiving element can be freely rotated in both drive directions about the axis of rotation. The receiving element is blocked in one of the two drive directions in the relaxed state of the wrap spring and in the triggered state of a thermal fuse.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 16, 2024
    Assignee: SIEMENS SCHWEIZ AG
    Inventors: Andreas Pally, Beat Kälin
  • Blocking Apparatus for a Fire Damper, Blocking Apparatus System and Method for Blocking a Drive Direction
    Publication number: 20210353985
    Abstract: Various embodiments include a blocking apparatus comprising: a holding apparatus; a receiving element mounted in the holding apparatus about an axis of rotation, defining a through-opening with a through-axis parallel to the axis of rotation; a wrap spring mechanically prestressed in the holding apparatus, with a winding arranged around the receiving element; and a thermocouple made of a material having a lower melting temperature than the holding apparatus and/or the wrap spring. The thermocouple holds at least one end of the wrap spring with respect to the holding apparatus in the prestressed state in such a way that the receiving element can be freely rotated in both drive directions about the axis of rotation. The receiving element is blocked in one of the two drive directions in the relaxed state of the wrap spring and in the triggered state of a thermal fuse.
    Type: Application
    Filed: September 17, 2019
    Publication date: November 18, 2021
    Applicant: Siemens Schweiz AG
    Inventors: Andreas Pally, Beat Kälin