Patents by Inventor G{acute over (e)}rard Sirigu

G{acute over (e)}rard Sirigu 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).

  • Electronic control for an elevator braking system
    Patent number: 6173813
    Abstract: An exemplary embodiment of the invention is directed to an elevator braking system including an accelerometer for detecting acceleration of an elevator car and generating an acceleration signal. An over-acceleration detection module compares the acceleration signal to an acceleration threshold. If over-acceleration detection module detects an over-acceleration condition, a first switching device disrupts power to a solenoid in order to activate a braking assembly.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: January 16, 2001
    Assignee: Otis Elevator Company
    Inventors: Pascal Rebillard, Vincent Raillard, G{acute over (e)}rard Sirigu