Patents by Inventor Scott C. Carnes

Scott C. Carnes 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).

  • Patent number: 5207072
    Abstract: A refrigeration system including a compressor, condenser, thermal expansion valve, control for the thermal expansion valve, shell evaporator, suction line between the shell evaporator and compressor, and a control evaporator in the suction line between the shell evaporator and the control for the thermal expansion valve utilizing hot refrigerant gas from the compressor to heat the refrigerant in the suction line. The refrigeration system also includes an unloading arrangement for the compressor. In one arrangement a hot loop circuit is located directly between the outlet of the compressor and the inlet thereof and a cold loop circuit is located between the outlet and inlet of the compressor and which includes the evaporator, and both loops bypass the condenser and thus pass refrigerant from the compressor back to the compressor to thereby permit it to selectively operate in an unloaded condition in response to the load applied by the medium which is being cooled.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: May 4, 1993
    Assignee: Rayco Enterprises, Inc.
    Inventors: Raymond P. Arno, Scott C. Carnes
  • Patent number: 5099655
    Abstract: A halocarbon refrigeration system including a compressor, condenser, thermal expansion valve, control for the thermal expansion valve, shell evaporator, suction line between the shell evaporator and compressor, and a control evaporator in the suction line between the shell evaporator and the control for the thermal expansion valve, the control evaporator utilizing hot refrigerant gas from the compressor to heat the refrigerant in the suction line and thus expose the control for the thermal expansion valve to heated refrigerant which in turn causes the thermal expansion valve to admit more liquid refrigerant to the shell evaporator to cause it to operate in a fully flooded condition, the control evaporator also insuring vaporization of all the liquid in the suction line prior to its passage to the compressor.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: March 31, 1992
    Assignee: Rayco Enterprises, Inc.
    Inventors: Raymond P. Arno, Scott C. Carnes
  • Patent number: 5062571
    Abstract: A sensing element for controlling the unloading of a compressor including a finned tube for placement in firm heat conducting engagement within a tube of a shell evaporator and containing a thermocouple which senses either the temperature of fluid within the tube or the temperature of the refrigerant on the outside of the tube which is located within the evaporator, depending on the amount of fluid flowing through the tube.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: November 5, 1991
    Assignee: Rayco Enterprises, Inc.
    Inventors: Raymond P. Arno, Scott C. Carnes