Patents by Inventor Tariq A. R. Diab

Tariq A. R. Diab 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).

  • Compressor capacity modulation
    Patent number: 5049040
    Abstract: A variable capacity compressor in which each compression chamber has a reexpansion chamber the volume of which is selectively controlled by pressurized lubricant.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: September 17, 1991
    Assignee: Copeland Corporation
    Inventors: Tariq A. R. Diab, Jerry L. Miller, Earl B. Muir
  • Compressor system with demand cooling
    Patent number: 4974427
    Abstract: A refrigeration system is disclosed which incorporates apparatus for preventing overheating of the compressor by selectively feeding liquid refrigerant from the outlet of the condenser to the compressor. In one embodiment the refrigerant fluid from the compressor is injected into the suction manifold of the compressor. In another embodiment this fluid is injected directly into the compression chamber or chambers. Control means are provided which include a temperature sensor located within the compressor discharge chamber and valve means responsive thereto to control the flow of liquid refrigerant to the suction manifold or compression chamber.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: December 4, 1990
    Assignee: Copeland Corporation
    Inventor: Tariq A. R. Diab