Patents by Inventor David G. Elliott

David G. Elliott 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: 11921023
    Abstract: Holographic Video Microscopy analysis of non-spherical particles is disclosed herein. Properties of the particles are determined by application of light scattering theory to holography data. Effective sphere theory is applied to provide information regarding the reflective index of a sphere that includes a target particle. Known particles may be co-dispersed with unknown particles in a medium and the holographic video microscopy is used to determine properties, such as porosity, of the unknown particles.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: March 5, 2024
    Assignees: New York University, Spheryx, Inc.
    Inventors: David G. Grier, Mary Ann Odete, Fook Chiong Cheong, Annemarie Winters, Jesse J. Elliott, Laura A. Philips
  • Patent number: 4545368
    Abstract: Induction heating can be utilized to cause necrosis of neoplasm as a result of hyperthermia by a process involving the injection of particles having hysteresis heating characteristics into tissue either within or in close proximity to the neoplasm and then subjecting these particles to an alternating magnetic field sufficient to cause hysteresis heating. The frequency of the field is preferably sufficiently low so as to minimize eddy current and dielectric heating. The particles used are preferably initially located within a biologically inert liquid carrier which will facilitate the insertion of the particles within the body and which will automatically become non-liquid within the body so as to hold the particles in place. The carrier may contain radiopaque material to enhance its visualization under radiographic examination.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: October 8, 1985
    Inventors: Robert W. Rand, Harold D. Snow, David G. Elliott, Glenn M. Haskins
  • Patent number: 4514137
    Abstract: A method for driving a two-phase turbine 10 characterized by an output shaft 20 having at least one stage including a bladed rotor connected in driving relation with the shaft, and wherein a two-phase fluid is introduced into said one stage at a known flow velocity and caused to pass through the rotor for imparting angular velocity thereto, the speed of the rotor being controlled so that the angular velocity of the tips of the blades thereof is a velocity equal to at least 50% of the velocity of the flow of the two-phase fluid.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: April 30, 1985
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: David G. Elliott
  • Patent number: 4392040
    Abstract: Induction heating can be utilized to cause necrosis of neoplasm as a result of hyperthermia by a process involving the injection of particles having hysteresis heating characteristics into tissue either within or in close proximity to the neoplasm and then subjecting these particles to an alternating magnetic field sufficient to cause hysteresis heating. The frequency of the field is preferably sufficiently low so as to minimize eddy current and dielectric heating. The particles used are preferably initially located within a biologically inert liquid carrier which will facilitate the insertion of the particles within the body and which will automatically become non-liquid within the body so as to hold the particles in place. The actual heating is preferably carried out by positioning either the entire patient or the affected portion of the patient's body through a series of axially aligned, parallel, liquid cooled coils. Only one of these coils is connected to a power supply.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: July 5, 1983
    Inventors: Robert W. Rand, Harold D. Snow, David G. Elliott, Glenn M. Haskins
  • Patent number: 4141219
    Abstract: A turbine including a plurality of nozzles for delivering streams of a two-phase fluid along linear paths, a phase separator for responsively separating the vapor and liquid characterized by concentrically related annuli supported for rotation within the paths and having endless channels for confining the liquid under the influence of centrifugal forces, a vapor turbine fan for extracting kinetic energy from the vapor, and a liquid turbine blade for extracting kinetic energy from the liquid whereby angular momentum of both the liquid phase and the vapor phase of the fluid is converted to torque.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: February 27, 1979
    Inventors: Robert A. Administrator of the National Aeronautics and Space Administration, with respect to the invention of Frosch, David G. Elliott
  • Patent number: 3972195
    Abstract: A two-phase power source comprises a rotor; a nozzle having an outlet directed to discharge a two-phase jet for impingement on the rotor to rotate same, the nozzle having means to subdivide flow therein; and means to supply a heated first fluid in liquid state to the nozzle for subdivided flow therein toward said outlet and to supply a second and vaporizable fluid in liquid state to the nozzle to receive heat from the first fluid therein causing the second fluid to vaporize in the nozzle and mix with the first fluid in essentially liquid state to produce said discharging jet.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: August 3, 1976
    Assignee: Biphase Engines, Inc.
    Inventors: Lance G. Hays, David G. Elliott