Patents by Inventor Robert Lindegger

Robert Lindegger 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 traction sheave brake
    Patent number: 5007505
    Abstract: An elevator traction sheave brake for use on a counter-balanced elevator. The brake comprises a controllable friction member which when released from its running position is compressed against the traction sheave and is capable of providing a braking torque in accordance with a preset braking profile whereby uncontrolled rotation of the traction sheave is prevented.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: April 16, 1991
    Assignee: Northern Elevator Limited
    Inventor: Robert Lindegger