Patents by Inventor Leonard James Kirkland

Leonard James Kirkland 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).

  • Method and apparatus for operating an electrical drive system
    Patent number: 9391556
    Abstract: An electrical drive system includes an electric motor having an armature, which is mounted on a stator, and a rotor, wherein aligning stator flux with rotor flux enables current to flow in the armature without inducing torque on the rotor shaft. The disclosed operation may be used, for example, in testing the electrical drive system. The electric drive system can carry full rated current yet produce little or no torque, thereby increasing the current that can be tested during electrical drive test procedures without producing undesired forces or motion. The method may be used, for example, in heating the electric motor, for example for de-icing.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: July 12, 2016
    Assignee: MBDA UK LIMITED
    Inventors: David Mark Lynn, Leonard James Kirkland
  • METHOD AND APPARATUS FOR OPERATING AN ELECTRICAL DRIVE SYSTEM
    Publication number: 20130193896
    Abstract: An electrical drive system includes an electric motor having an armature, which is mounted on a stator, and a rotor, wherein aligning stator flux with rotor flux enables current to flow in the armature without inducing torque on the rotor shaft. The disclosed operation may be used, for example, in testing the electrical drive system. The electric drive system can carry full rated current yet produce little or no torque, thereby increasing the current that can be tested during electrical drive test procedures without producing undesired forces or motion. The method may be used, for example, in heating the electric motor, for example for de-icing.
    Type: Application
    Filed: January 8, 2013
    Publication date: August 1, 2013
    Applicant: MBDA UK Limited
    Inventors: David Mark Lynn, Leonard James Kirkland