Patents by Inventor Franz Grubner

Franz Grubner 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).

  • Elevator brake mechanism and/or safety gear with welded brake lining
    Patent number: 10060491
    Abstract: An elevator system with an elevator car, elevator en guide rails, at least one braking rail, and a brake mechanism and/or safety gear that determines the elevator car movement when activated and in turn has at least one brake block that cooperates with the braking rail. The active surface of this brake block that comes into contact with the braking rail functioning as the brake lining is at least one welding bead whose surface hardness is greater than surface hardness of the braking rail. A method for manufacturing such an elevator brake block includes welding at least two welding beads on a brake lining support composed of a weldable, preferably low-alloyed steel, which constitutes the brake lining that is brought into frictional contact with the braking rail during operation.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: August 28, 2018
    Assignee: Wittur Holding GmbH
    Inventors: Markus Leichtfried, Karl Kriener, René Holzer, Franz Grubner
  • ELEVATOR BRAKE MECHANISM AND/OR SAFETY GEAR WITH WELDED BRAKE LINING
    Publication number: 20160348745
    Abstract: An elevator system with an elevator car, elevator en guide rails, at least one braking rail, and a brake mechanism and/or safety gear that determines the elevator car movement when activated and in turn has at least one brake block that cooperates with the braking rail. The active surface of this brake block that comes into contact with the braking rail functioning as the brake lining is at least one welding bead whose surface hardness is greater than surface hardness of the braking rail. A method for manufacturing such an elevator brake block includes welding at least two welding beads on a brake lining support composed of a weldable, preferably low-alloyed steel, which constitutes the brake lining that is brought into frictional contact with the braking rail during operation.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 1, 2016
    Inventors: Markus Leichtfried, Karl Kriener, René Holzer, Franz Grubner