Patents by Inventor John Ebenezer Sargunar

John Ebenezer Sargunar 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).

  • Magnetic transducer head having an integral magnetic shield and wear indicator
    Patent number: 3938193
    Abstract: Described is a magnetic transducer head assembly provided with a wear indicator to produce an indication when the head wear has proceeded to a predetermined point. For this purpose, the magnetic shield of the head includes a portion aligned with the pole faces of the head and which portion is subject to wear with the pole faces, such that the electrical continuity of the magnetic shield is interrupted upon the occurrence of a predetermined amount of wear of the pole faces. The magnetic shield further includes terminals for connection to an electrical device to test the electrical continuity of the shield portion, and thereby to provide an indication of the occurrence of the predetermined amount of wear.
    Type: Grant
    Filed: November 27, 1974
    Date of Patent: February 10, 1976
    Assignee: Burroughs Corporation
    Inventor: John Ebenezer Sargunar