Patents by Inventor Roy J. HARTFIELD

Roy J. HARTFIELD 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: 11123220
    Abstract: An improved gas delivery system for a cryochamber that increases the efficiency, efficacy, and safety of cryotherapy treatments is disclosed. The system incorporates a high pressure cryogenic liquid source and a plurality of fluid discharge orifices for conveying fluid into the chamber. The orifices may further comprise atomizing nozzles, which eliminate the need for a heater in the system. The orifices are dispersed about the chamber and positioned to convey fluid either clockwise or counterclockwise about a central vertical axis of the chamber to promote cyclonic gas motion. The cryochamber may further comprise shielding that reduces the risks associated with inadvertent liquid discharge. The orifices may also be positioned at varying heights in the chamber and have varying diameters to facilitate targeted cryotherapy treatments. The improved gas delivery system enables the cryochamber to achieve the same or improved therapeutic benefits while consuming less cryogenic liquid per treatment and less energy.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 21, 2021
    Assignee: CryoXcel, LLC
    Inventors: John H Mann, III, Roy J Hartfield, Jr.
  • Publication number: 20140020384
    Abstract: The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric mixture requirements utilized in spark-ignition based engines and the emission problems associated with diesel engines.
    Type: Application
    Filed: September 24, 2013
    Publication date: January 23, 2014
    Inventor: Roy J. HARTFIELD, JR.
  • Patent number: 8567178
    Abstract: The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric mixture requirements utilized in spark-ignition based engines and the emission problems associated with diesel engines.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: October 29, 2013
    Inventor: Roy J. Hartfield, Jr.
  • Publication number: 20120000199
    Abstract: The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric mixture requirements utilized in spark-ignition based engines and the emission problems associated with diesel engines.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 5, 2012
    Inventor: Roy J. HARTFIELD, JR.
  • Patent number: 8037863
    Abstract: The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric mixture requirements utilized in spark-ignition based engines and the emission problems associated with diesel engines.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: October 18, 2011
    Inventor: Roy J. Hartfield, Jr.
  • Publication number: 20080216792
    Abstract: The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric mixture requirements utilized in spark-ignition based engines and the emission problems associated with diesel engines.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Inventor: Roy J. HARTFIELD