Patents by Inventor Robert Karnbach

Robert Karnbach 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).

  • Switchgear enclosure with improved door assembly
    Patent number: 8960815
    Abstract: A multipoint door latch apparatus for use in a switchgear enclosure comprising a door assembly, a latch handle and latch handle mechanism, a plurality of catch tabs affixed to the face frame of the enclosure. Top, side, and bottom latch bars in latch bar chambers are provided, each having at least one latch tooth and being linked by latch bar linkages such that a displacement of one latch bar along results in the same magnitude displacement in the other two latch bars. The catch tabs or latch teeth, or both, are tapered to provide a suitable seal between the door assembly and the enclosure when the door assembly is latched.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: February 24, 2015
    Assignee: ABB Technology AG
    Inventors: Harshavardhan M. Karandikar, Radim Dolezal, Robert Karnbach, Rahul Pawar, Patrick Fischer-Carne
  • Switchgear Enclosure With Improved Door Assembly
    Publication number: 20130293076
    Abstract: A multipoint door latch apparatus for use in a switchgear enclosure comprising a door assembly, a latch handle and latch handle mechanism, a plurality of catch tabs affixed to the face frame of the enclosure. Top, side, and bottom latch bars in latch bar chambers are provided, each having at least one latch tooth and being linked by latch bar linkages such that a displacement of one latch bar along results in the same magnitude displacement in the other two latch bars. The catch tabs or latch teeth, or both, are tapered to provide a suitable seal between the door assembly and the enclosure when the door assembly is latched.
    Type: Application
    Filed: January 25, 2012
    Publication date: November 7, 2013
    Applicant: ABB TECHNOLOGY AG
    Inventors: Harshavardhan M. Karandikar, Radim Dolezal, Robert Karnbach, Rahul Pawar, Patrick Fischer-Carne