Patents by Inventor Siddharth B. Pratap

Siddharth B. Pratap 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).

  • BIPOLAR SOLID STATE MARX GENERATOR
    Publication number: 20110065161
    Abstract: A high-voltage bipolar rectangular pulse generator using a high efficiency solid-state boosting front-end and an H-bridge output stage is described. The topology of the circuit generates rectangular pulses with fast rise time and allows easy step-up input voltage. In addition, the circuit is able to adjust positive or negative pulse width, dead-time between two pulses, and operating frequency. The intended application for such circuit is algae cell membrane rupture for oil extraction, although additional applications include biotechnology and plasma sciences medicine, and food industry.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 17, 2011
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Alexis Kwasinski, Sung Woo Bae, Mark M. Flynn, Robert E. Hebner, Michael D. Werst, Siddharth B. Pratap, Aaron S. Williams
  • Symmetric armature for high current, air-core pulsed alternators
    Patent number: 5210452
    Abstract: A high-energy output, air-core pulsed alternator utilizes stacked armature coils mounted on the outer periphery of an armature rotor. The stacked coils are symmetrically arranged with respect to one another so as to balance axial or longitudinal forces exerted upon the rotor for high energy pulsed output. The alternator may also include any load device which requires high energy output such as, but not limited to, an electromagnetic railgun.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: May 11, 1993
    Assignee: Board of Regents, The University of Texas System
    Inventors: Siddharth B. Pratap, Mike L. Spann, W. Alan Walls
  • High energy pulse forming generator
    Patent number: 4935708
    Abstract: A machine is disclosed having the ability to generate high energy pulses of electrical power with a high degree of flexibility in the shape of the pulse. Different mechanism provide non-uniform or non-symmetrical magnetic flux density distributions through which an armature winding is rotated. The electromotive force induced in the armature winding has a waveform which may be customized by use of the different mechanisms or by a combination of the techniques. Additionally, a non-symmetrical armature winding or a compensation winding may be used to tailor the output pulse to achieve the desired characteristics.
    Type: Grant
    Filed: March 25, 1987
    Date of Patent: June 19, 1990
    Assignee: Board of Regents, The University of Texas Systems
    Inventors: William F. Weldon, Mircea D. Driga, Siddharth B. Pratap
  • Pulsed generator incorporating output waveform flexibility and a pulsed transformer
    Patent number: 4841217
    Abstract: A single phase, multipole alternator with inertial and/or electromagnetic energy storage is disclosed. More specifically, the present invention involves a high energy pulsed alternator which is capable of generating a variety of pulse signals by ready modification of the angle between the magnetic axes of the excitation field coil and the compensating coil or conducting shield.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: June 20, 1989
    Assignee: The University of Texas System
    Inventors: William F. Weldon, Siddharth B. Pratap, Mircea D. Driga