Patents by Inventor Robert Bryan Leach

Robert Bryan Leach 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 car control in a landing zone using a machine brake in response to undesired car movement
    Patent number: 9422133
    Abstract: An exemplary method is useful for controlling movement of an elevator car in an elevator system that includes a machine that selectively moves the elevator car and a machine brake that selectively resists movement of the elevator car. The method includes determining whether the elevator car is near a landing and determining whether a door of the elevator car is open. A desired operation includes desired movement of the elevator car while the elevator car is near the landing and the door is open. A determination is made whether the elevator car moves other than according to the desired movement. The machine brake is applied for stopping movement of the elevator car responsive to elevator car movement other than the desired movement while the elevator car is near the landing and the door is open.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: August 23, 2016
    Assignee: Otis Elevator Company
    Inventors: Pascal Rebillard, Nicolas Fonteneau, Gerard Sirigu, Gregor Stricker, James L. Hubbard, Peter Herkel, Robert Bryan Leach, Guillaume Bonatre, Fabrice Boniface, Stephane Gourjeande
  • ELEVATOR CAR MOVEMENT CONTROL IN A LANDING ZONE
    Publication number: 20130327598
    Abstract: An exemplary method is useful for controlling movement of an elevator car in an elevator system that includes a machine that selectively moves the elevator car and a machine brake that selectively resists movement of the elevator car. The method includes determining whether the elevator car is near a landing and determining whether a door of the elevator car is open. A desired operation includes desired movement of the elevator car while the elevator car is near the landing and the door is open. A determination is made whether the elevator car moves other than according to the desired movement. The machine brake is applied for stopping movement of the elevator car responsive to elevator car movement other than the desired movement while the elevator car is near the landing and the door is open.
    Type: Application
    Filed: February 28, 2011
    Publication date: December 12, 2013
    Inventors: Pascal Rebillard, Nicolas Fonteneau, Gerard Sirigu, Gregor Stricker, James L. Hubbard, Peter Herkel, Robert Bryan Leach, Guillaume Bonatre, Fabrice Boniface, Stephane Gourjeande