Patents by Inventor Lian-Choo Lim

Lian-Choo Lim 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 installation, a method of operating this elevator installation, and method of modernizing an elevator installation
    Patent number: 7467691
    Abstract: An elevator installation for conveying persons/goods, a method for operating the elevator installation and to a method for modernizing an elevator installation. The elevator installation includes at least two cages arranged one above the other in a vertical travel direction, and a drive per cage for moving the cages. The cage and the drive are connected by way of a conveying member. A counterweight for weight compensation of each cage. At least one cage guide rail is provided for guiding the cages, and at least a pair of counterweight guide rails are provided for guiding the counterweights. The drives are arranged near different first walls in the shaft.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: December 23, 2008
    Assignee: Inventio AG
    Inventors: Romeo Deplazes, Lian-Choo Lim
  • Elevator installation, a method of operating this elevator installation, and method of modernizing an elevator installation
    Publication number: 20040256179
    Abstract: An elevator installation for conveying persons/goods, a method for operating the elevator installation and to a method for modernizing an elevator installation. The elevator installation includes at least two cages arranged one above the other in a vertical travel direction, and a drive per cage for moving the cages. The cage and the drive are connected by way of a conveying member. A counterweight for weight compensation of each cage. At least one cage guide rail is provided for guiding the cages, and at least a pair of counterweight guide rails are provided for guiding the counterweights. The drives are arranged near different first walls in the shaft.
    Type: Application
    Filed: June 9, 2004
    Publication date: December 23, 2004
    Applicant: Inventio AG
    Inventors: Romeo Deplazes, Lian-Choo Lim