Patents by Inventor Jean C. Chapelain

Jean C. Chapelain 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: 5000292
    Abstract: A temporary pulley assembly is fastened to the ceiling of a lift hoistway, and is used to raise the sheave crossbeam, sheaves, car, and counterweight assembly to the hoistway ceiling. The crossbeam is a telescoping member which is extended to fit into pockets in the hoistway side walls. Installers working on the roof of the car can fix guide rails to the hoistway walls as the entire assembly is being raised en masse. When the assembly reaches the top of the hoistway, the hoisting cables or ropes are properly fastened to the various lift sheaves, and to the hoistway ceiling.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: March 19, 1991
    Assignee: Otis Elevator Company
    Inventors: Jean C. Chapelain, Daniel Beaulieu
  • Patent number: 4819403
    Abstract: A method is disclosed for installing a hall door assembly on a floor when the elevator rails or car are not installed. A template is placed at one terminal or end of the elevator shaft and is used to locate the position of a temporary bracket containing three holes which are spaced apart to correspond with three marks along the sill of the hall door assembly. The holes are on a common line and at a preestablished distance from the wall of the shaft. Once this bracket is installed in the shaft, a plumb line is extended from each of the holes to another bracket below. The plumb lines hang next to the floor on which a hall door is to be installed. This other bracket is positioned so that the plumb line passes through the center of a corresponding hole in the bracket.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: April 11, 1989
    Assignee: Otis Elevator Company
    Inventors: Alain M. R. Penicaut, Jean C. Chapelain