Patents by Inventor Steven J. Pincus

Steven J. Pincus 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).

  • Circulation of oil in refrigeration systems with immiscible refrigerant-oil combinations
    Patent number: 5452585
    Abstract: In a refrigeration or air-conditioning process, a method applicable to the replacement of potentially ozone-depleting oil-miscible refrigerants such as R-12 with non-ozone-depleting oil-immiscible refrigerants such as R-134a, wherein a conventional expansion device is replaced by a self-regulating pulsed nozzling device for pulsed circulation of the immiscible oil in the new refrigerant to create accelerated intermittent high velocity bursts of substantially unrestricted refrigerant flow imparting sufficient momentum to move the oil with the refrigerant through all stages of the process.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: September 26, 1995
    Assignee: Calmac Manufacturing Corporation
    Inventors: Steven J. Pincus, Calvin D. MacCracken
  • Non-steady-state self-regulating intermittent flow thermodynamic system
    Patent number: 5353602
    Abstract: A thermodynamic system, such as a vapor compression refrigeration system, in which a binary expansion valve allows pulsed high velocity flow to an evaporator through an isentropic flow nozzle wherein the valve is controlled in response to evaporator pressure.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: October 11, 1994
    Assignee: Calmac Manufacturing Corporation
    Inventor: Steven J. Pincus