Patents by Inventor Catherine Drouet

Catherine Drouet 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: 12065331
    Abstract: A brake system for an elevator system includes a first brake circuit, a second brake circuit and a control unit, the first and second brake circuits each having a brake, and each brake including an actuator and a main spring unit, the actuator being preloaded by the main spring unit in the closing direction of the brake with the force required for applying the braking force. The actuator is activated by a control signal of the control unit to compensate the force of the main spring unit, and thus release the brake. The control unit, upon activation, selects only one of the two control signals between the activation of the first and second brake circuits, such that the ratio of the number of activations of the first brake circuit and the number of activations of the second brake circuit aims for a fixed ratio.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: August 20, 2024
    Assignee: INVENTIO AG
    Inventor: Catherine Drouet
  • Publication number: 20240174488
    Abstract: A brake system for an elevator system includes a first brake circuit, a second brake circuit and a control unit, the first and second brake circuits each having a brake, and each brake including an actuator and a main spring unit, the actuator being preloaded by the main spring unit in the closing direction of the brake with the force required for applying the braking force. The actuator is activated by a control signal of the control unit to compensate the force of the main spring unit, and thus release the brake. The control unit, upon activation, selects only one of the two control signals between the activation of the first and second brake circuits, such that the ratio of the number of activations of the first brake circuit and the number of activations of the second brake circuit aims for a fixed ratio.
    Type: Application
    Filed: March 4, 2022
    Publication date: May 30, 2024
    Inventor: Catherine Drouet
  • Patent number: 9884746
    Abstract: A method and a device configures a floor allocation of at least two operating panels of an elevator system having an elevator car and an elevator control unit in a building having at least two floors, wherein a respective one of the operating panels and an elevator door are located on each floor of the building, wherein a door contact unit is arranged on the elevator door, wherein the door contact unit is opened with the elevator door open, and wherein the elevator car moves vertically between the at least two floors. According to the method and device, the door contact unit is connected with the operating panel on each floor. The elevator car is moved to each floor and the elevator door is opened. The operating panel detects the open door contact unit and allocates the approached floor to the operating panel depending on the position of the elevator car.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: February 6, 2018
    Assignee: INVENTIO AG
    Inventors: Catherine Drouet, Frank Olivier Roussel
  • Publication number: 20170001841
    Abstract: A method and a device configures a floor allocation of at least two operating panels of an elevator system having an elevator car and an elevator control unit in a building having at least two floors, wherein a respective one of the operating panels and an elevator door are located on each floor of the building, wherein a door contact unit is arranged on the elevator door, wherein the door contact unit is opened with the elevator door open, and wherein the elevator car moves vertically between the at least two floors. According to the method and device, the door contact unit is connected with the operating panel on each floor. The elevator car is moved to each floor and the elevator door is opened. The operating panel detects the open door contact unit and allocates the approached floor to the operating panel depending on the position of the elevator car.
    Type: Application
    Filed: December 19, 2014
    Publication date: January 5, 2017
    Inventors: Catherine Drouet, Frank Olivier Roussel