Patents by Inventor Joseph Vithayathil

Joseph Vithayathil 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).

  • Publication number: 20080301154
    Abstract: A software tool or information system that is User Driven and allows the user to imagine, dictate, iterate and control the place, means, format and kind of data and information to be viewed and analyzed. The system allows the User to begin with an imagined image or picture of what is required. The system is Interactive and allows the user to iterate, change, modify improve, edit, correct, consolidate, drill down and perform all other actions that are required by the user. The system is Adaptive and has a learning capability that will anticipate and prompt progressively more accurately what the User desires from the User's inputs and therefore Adapts to the User. The System is Adaptive, Learning with intelligent estimation of the User's request when examining the target database or data source.
    Type: Application
    Filed: June 2, 2007
    Publication date: December 4, 2008
    Inventor: JOSEPH VITHAYATHIL
  • Patent number: 6188204
    Abstract: An AC generator whose field winding (4) on the rotor is excited by AC so that the resultant speed of the rotating field is the algebraic sum of the rotor speed and the speed of the field relative to the rotor itself. This makes it possible to generate AC at a frequency different from that of conventional DC excited generators by the appropriate choice of the frequency of the AC input to the rotor field circuit. It enables the stabilization of the output frequency of the alternator when speed changes occur, by the adjustment of the AC frequency of the rotor input. The AC fed to the rotor is from an auxiliary winding (3) which may be housed on the rotor itself, thereby eliminating the need for any brushes or slip rings. The AC is induced in the auxiliary rotor winding by having an auxiliary winding on the stator (2), distinct from the main stator winding (1). The input to the stator auxiliary winding may be from an inverter (5) whose frequency may be adjustable.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: February 13, 2001
    Inventors: Joseph Vithayathil, John J. Vithayathil
  • Patent number: 6051953
    Abstract: A three phase AC motor which rotates at the synchronous speed determined by the number of poles of its main stator winding and the frequency of the AC input to it, which does not need any exciter machine or brushes to provide its DC field current, but has an internal, but independently adjustable excitation system to supply its field current. The internal excitation system consists of an auxiliary winding on the stator which is additional to the main power winding, another auxiliary winding on the rotor besides the main DC field winding, a diode rectifier circuit on the rotor from which the DC field current is supplied by rectification of the induced currents in the rotor auxiliary field. The field current adjustment can be made by adjustment of the input to the stator auxiliary winding. This can be done independently by eliminating any magnetic coupling between the main and auxiliary circuits.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: April 18, 2000
    Inventor: Joseph Vithayathil
  • Patent number: 5012148
    Abstract: An AC machine system, in which the machine has an auxiliary rotating magnetic field, in addition to the main rotating field, with different speeds of rotation. The auxiliary field serves to induce AC voltages in the rotor windings, even when the machine is rotating at the synchronous speed of the main field. The induced AC is rectified, by having a rectifier circuit on the rotor, and provides DC excitation, to create fixed magnetic poles on the rotor. Thereby the machine functions at the synchronous speed of the main field, without the need for a DC exciting source, external to the rotor circuit. The presence of AC current components in the rotor coils, enable torque production at non-synchronous speeds also. The combination of main and auxiliary rotating fields can be implemented in several ways, such as a stator supply having more than one frequency components, or components of opposite sequence. It can also be done by appropriate design of the stator circuit.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: April 30, 1991
    Inventor: Joseph Vithayathil