Patents by Inventor John E. Markaran

John E. Markaran 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).

  • Coupled RFI choke as stall detection means for brush type DC motor
    Publication number: 20040183489
    Abstract: A brush type DC motor 10 having an armature 15 and positive and negative power leads is provided. The motor includes an RFI choke 12 as a transformer in series with at least one of the positive and negative power leads to amplify current such that rotation of the armature 15 can be detected based on monitoring a voltage relating to the amplified current. Conditioning circuitry 14 is constructed and arranged to condition the voltage for detecting rotation of the armature.
    Type: Application
    Filed: March 18, 2004
    Publication date: September 23, 2004
    Applicant: Siemens VDO Automotive Inc.
    Inventor: John E. Markaran