Patents by Inventor Karl J. Krapek

Karl J. Krapek 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 motion profile selection
    Patent number: 5266757
    Abstract: An elevator system including a variable speed motive means is disclosed wherein the motive means is controlled in response to a selected motion profile to effect desired operation of the elevator car. Multiple elevator car motion profiles are stored and a appropriate profile is selected to operate the elevator car such that the level of service necessary to meet demand is provided while operating the elevator cars at reduced acceleration and jerk rates to provide increased ride comfort. Appropriate motion profiles are selected based on factors such as demand for elevator service and whether the building is in an up-peak or down-peak traffic period.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: November 30, 1993
    Assignee: Otis Elevator Company
    Inventors: Karl J. Krapek, Joseph Bittar