Patents by Inventor Lawrence J. Cler

Lawrence J. Cler 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).

  • Adaptive environment control system
    Patent number: 4897798
    Abstract: This adaptive environment control system provides an HVAC control system that adapts to the continually-changing thermal characteristics of the building in which it operates. The adaptive environment control system periodically estimates the thermal characteristics of the building and uses these estimates to control the operation of the HVAC system. The adaptive environment control system also periodically measures the performance characteristics of the HVAC system to obtain data with which to update these thermal characteristic estimates. These thermal characteristic estimates enable the adaptive environment control system to determine both the length of time it takes the building to heat up and cool down when the HVAC system idles, as well as the amount of time it takes the HVAC system to heat or cool the building.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: January 30, 1990
    Assignees: American Telephone and Telegraph Company, AT&T Information Systems Inc.
    Inventor: Lawrence J. Cler