Patents by Inventor Betty J. Richardson

Betty J. Richardson 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).

  • Progressive cavity compressor having check valves on the discharge endplate
    Patent number: 8083508
    Abstract: A new type of progressive cavity compressor is intended primarily for 3 to 10 ton vapor-cycle air conditioning systems. Major working section elements include a rotor, a stator, inlet ports, an outlet endplate, and outlet check valves. The helical rotor is driven in an eccentric orbital path inside the helical stator. In the preferred embodiment, the rotor and stator helices have varying (non-uniform) pitch in the working section. Rotor-stator running clearances are tight, to minimize leakage. Two outlet check valves regulate refrigerant discharge flow and pressure. Efficient compression is provided over a wide range of compression ratios, corresponding to a wide range of ambient temperatures in an air conditioning application. The invention can improve the energy efficiency of air conditioning systems, especially at off-design conditions.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: December 27, 2011
    Assignee: Blue Helix, LLC
    Inventors: Jack H. Irving, Florence L. Irving, legal representative, John M. Richardson, Betty J. Richardson, legal representative, Howard M. Robbins
  • PROGRESSIVE CAVITY COMPRESSOR
    Publication number: 20110174010
    Abstract: A new type of progressive cavity compressor is intended primarily for 3 to 10 ton vapor-cycle air conditioning systems. Major working section elements include a rotor, a stator, inlet ports, an outlet endplate, and outlet check valves. The helical rotor is driven in an eccentric orbital path inside the helical stator. In the preferred embodiment, the rotor and stator helices have varying (non-uniform) pitch in the working section. Rotor-stator running clearances are tight, to minimize leakage. Two outlet check valves regulate refrigerant discharge flow and pressure. Efficient compression is provided over a wide range of compression ratios, corresponding to a wide range of ambient temperatures in an air conditioning application. The invention can improve the energy efficiency of air conditioning systems, especially at off-design conditions.
    Type: Application
    Filed: June 8, 2010
    Publication date: July 21, 2011
    Applicant: BLUE HELIX, LLC
    Inventors: Jack H. Irving, Florence L. Irving, John M. Richardson, Betty J. Richardson, Howard M. Robbins