Electric Motor Control: (class 318) Patents (Class 505/852)
  • Superconductor magnetic field effect transistor with solenoid
    Patent number: 11525878
    Abstract: A superconductor magnetic field effect transistor. The superconductor magnetic field effect transistor may include a sheet of a superconducting material; and a solenoid. The sheet may be substantially flat, and the solenoid may include a plurality of turns, each of the turns being substantially parallel to the sheet. The superconducting material may be a type-II superconducting material.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: December 13, 2022
    Assignee: HRL Laboratories, LLC
    Inventors: Yeong Yoon, Jongchan Kang
  • Multidirectional/rotational superconductor motor
    Patent number: 5015622
    Abstract: A contactless, multi-dimensional small stepper motor with a maximum dimension of less than about 10 centimeters is described. The motor contains at least one magnetized article, at least one superconductive primary suspending element, and at least two primary conductive elements.Each of the primary conductive elements is separated from each adjacent primary conductive element by a distance of from about 0.01 to about 10 millimeters.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: May 14, 1991
    Assignee: Alfred University
    Inventors: Raymond C. Ward, Xingwu Wang, William B. Carlson, Walter A. Schulze, Jr.