Patents by Inventor James R. Neilson

James R. Neilson 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).

  • Magnetocaloric materials for cryogenic liquification
    Patent number: 9568223
    Abstract: System and methods for cryogenic magnetocaloric refrigeration are provided. The system may include a magnetocaloric material including a single ion anisotropy and primary magnetic interactions of at most two dimensions. The system may also include a cryogenic fluid in communication with the magnetocaloric material, such that, when a magnetic field having a strength of at least a predetermined threshold is applied, the magnetocaloric material is configured to at least partially liquefy the cryogenic fluid.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: February 14, 2017
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: James R. Neilson, Tyrel M. McQueen
  • MAGNETOCALORIC MATERIALS FOR CRYOGENIC LIQUIFICATION
    Publication number: 20150114007
    Abstract: System and methods for cryogenic magnetocaloric refrigeration are provided. The system may include a magnetocaloric material including a single ion anisotropy and primary magnetic interactions of at most two dimensions. The system may also include a cryogenic fluid in communication with the magnetocaloric material, such that, when a magnetic field having a strength of at least a predetermined threshold is applied, the magnetocaloric material is configured to at least partially liquefy the cryogenic fluid.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Applicant: The Johns Hopkins University
    Inventors: James R. Neilson, Tyrel M. McQueen
  • Apparatus for conditioning hygroscopic plastic material
    Patent number: 4531308
    Abstract: Apparatus for conditioning granules of plastic resin comprises a barrel having a hopper feed at its upper portion and a resin discharge at its lower portion to provide for gravitational flow of the granular resin through the barrel. The barrel periphery is perforated to permit passage of heated gases into the barrel and over the granular resin. A channel is defined centrally of the barrel and extends therealong to collect gases flowing over the resins and discharge such gases externally of the barrel.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: July 30, 1985
    Assignee: Cactus Machinery Inc.
    Inventors: James R. Neilson, Robert R. Bishop