Patents by Inventor John S. Brant

John S. Brant 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).

  • Patent number: 7360630
    Abstract: The present invention provides an elevator position compensation system which minimizing the re-leveling of an elevator car in an elevator shaft. The elevator car is suspended in the shaft by an elevator cable system and elevator motor, wherein the elevator position compensation system includes an elevator load sensor device for determining the weight of the elevator car, and generating a load signal indicative of the determined weight. An elevator position sensor determines the position of the elevator car in the elevator shaft and generates a position signal indicative of the determined elevator car position. An elevator control system receives the load signal and the position signal, which is processed by the control system in order to calculate a change in the cable system length associated with a load change within the elevator car, and wherein the calculated change in the cable system length is compensated by the elevator motor.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: April 22, 2008
    Assignee: ThyssenKrupp Elevator Capital Corporation
    Inventor: John S. Brant