Patents by Inventor A. Kumar Das

A. Kumar Das 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).

  • System and method for enabling a high torque/high speed brushless DC motor
    Patent number: 6680997
    Abstract: A high torque/high speed brushless DC motor system for controlling both the speed and torque of the motor including a rotor and a stator, the stator of the motor including a first, second and third winding. The system further includes means for sensing the position of the rotor and means for selectively configuring the first, second and third windings of the stator in a wye connection when the speed of the motor is less than a predetermined value and configuring the windings in a delta connection when the speed of the motor is greater than the predetermined value.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: January 20, 2004
    Assignee: Kendro Laboratory Products, LP
    Inventor: A. Kumar Das
  • System and method for enabling a high torque/high speed brushless DC motor
    Publication number: 20030080729
    Abstract: A high torque/high speed brushless DC motor system for controlling both the speed and torque of the motor including a rotor and a stator, the stator of the motor including a first, second and third winding. The system further includes means for sensing the position of the rotor and means for selectively configuring the first, second and third windings of the stator in a wye connection when the speed of the motor is less than a predetermined value and configuring the windings in a delta connection when the speed of the motor is greater than the predetermined value.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 1, 2003
    Inventor: A. Kumar Das
  • Method for enabling a high torque/high speed brushless DC motor
    Patent number: 6493924
    Abstract: A high torque/high speed brushless DC motor system for controlling both the speed and torque of the motor including a rotor and a stator, the stator of the motor including a first, second and third winding. The system further includes means for sensing the position of the rotor and means for selectively configuring the first, second and third windings of the stator in a wye connection when the speed of the motor is less than a predetermined value and configuring the windings in a delta connection when the speed of the motor is greater than the predetermined value.
    Type: Grant
    Filed: December 2, 2000
    Date of Patent: December 17, 2002
    Assignee: Kendro Laboratory Products, Inc.
    Inventor: A. Kumar Das
  • System and method for enabling a high torque/high speed brushless DC motor
    Publication number: 20020067093
    Abstract: A high torque/high speed brushless DC motor system for controlling both the speed and torque of the motor including a rotor and a stator, the stator of the motor including a first, second and third winding. The system further includes means for sensing the position of the rotor and means for selectively configuring the first, second and third windings of the stator in a wye connection when the speed of the motor is less than a predetermined value and configuring the windings in a delta connection when the speed of the motor is greater than the predetermined value.
    Type: Application
    Filed: December 2, 2000
    Publication date: June 6, 2002
    Applicant: Kendro Laboratory Products, L.P.
    Inventor: A. Kumar Das