Patents by Inventor Wahl Said

Wahl Said 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).

  • Method for protecting compressors used in chillers and/or heat pumps
    Patent number: 6321543
    Abstract: A controller monitors the saturated suction temperature and the saturated discharge temperature of a system that includes a compressor operating as part of a chiller and/or heat pump. When the compressor operates outside its compressor map, the controller takes action to ensure the compressor operates only within its compressor map. Such actions include defrosting the compressor coil if the system is in heating mode or unloading the unit.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: November 27, 2001
    Assignee: Carrier Corporation
    Inventors: Wahl Said, Hippolyte Chavagnat
  • Method and apparatus for indicating condenser coil performance on air-cooled chillers
    Patent number: 6272868
    Abstract: An algorithm calculates, in real time, the overall heat transfer coefficient for an air-cooled chiller system and compares this value to a reference value corresponding to a new machine operating with a clean condenser. Based on this comparison, an indication is displayed to inform a user of the degree of degradation in condenser performance.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: August 14, 2001
    Assignee: Carrier Corporation
    Inventors: Michel Karol Grabon, Wahl Said