Patents by Inventor Patrick Chenais

Patrick Chenais 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: 5877462
    Abstract: With this safety equipment in a multimobile elevator group, collisions between cars (C1 . . . CN) operating in the same shaft (1) can be prevented. For this purpose, each car (C1 . . . CN) is equipped with a safety module (10). In order not to cause any collision in the case of a stop command of a car (C1 . . . CN), the safety module (10) must know the positions and speeds of the other cars (C1 . . . CN) at all times. A decision module (12) integrated into the safety module (10) processes the travel data received by way of the communications system (11) and decides whether a car (C1 . . . CN) may or may not stop. Furthermore, the decision module (12) determines the braking behavior of a car (C1 . . . CN) (normal stop, emergency stop or triggering of the car-catching device).
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: March 2, 1999
    Assignee: Inventio AG
    Inventor: Patrick Chenais
  • Patent number: 5693919
    Abstract: An apparatus for performing an evacuation journey of an elevator car includes at least one brake control apparatus mounted on the car and an evacuation drive. In the case of an interruption in the normal travel of the car, an evacuation journey is initiated by an evacuation control in the evacuation drive. The elevator brake is released and the evacuation control moves the car to the next floor at a reduced speed. On reaching the next floor, a brake pawl of the brake control apparatus pivots into a switching opening or runs up onto a switching cam and thus initiates the final braking of the car by actuation of a brake control contact. Upon arrival in the door zone, the car and floor doors are pushed partially open by a spring so that confined passengers can further open the doors and release themselves.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: December 2, 1997
    Assignee: Inventio AG
    Inventors: Edmund Sager, Patrick Chenais
  • Patent number: 5612519
    Abstract: A group elevator control includes a call allocation device which automatically adapts to optimization criteria and traffic conditions so that an optimum call assignment is achieved. The device includes a solution selection module which calculates starting from a first time predetermined solution, further possible solutions for the call assignment which are fed to a simulator module. A traffic model module supplies possible passenger number and destination floor data to the simulator from which is generated factors data for the solutions, the factors data relating to passengers and/or elevator components. The factors data is fed to a calculation module, which uses a calculation function and optimization criteria data from the elevator control to generate another call allocation solution to the solution selection module which compares each another call allocation solution with the previous best solution to select the best of all possible solutions for the call allocation.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: March 18, 1997
    Assignee: Inventio AG
    Inventor: Patrick Chenais