Patents Assigned to Performance Profiles Inc.
  • Method for digital recording and graphic presentation of the combined performances of elevator cars
    Patent number: 5431252
    Abstract: A method for sensing and digitally recording the movements of a plurality of elevator cars in conjunction with the sensing and digital recording of a plurality of on-off electrical signals from the associated elevator control system utilizing a portable computer. A separate analysis computer is then used to integrate such recorded information into a graphic presentation for the purpose of evaluating elevator system operation.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: July 11, 1995
    Assignee: Performance Profiles Inc.
    Inventor: Jeffrey E. Morrison