Patents by Inventor Joseph J. Lukawich

Joseph J. Lukawich 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).

  • Patent number: 4480566
    Abstract: A presser attachment device for implementing needle feed in which a presser foot is elevated when a sewing needle is in engagement with work material to facilitate lateral shift thereof by the sewing needle. The presser foot is supported on one end of a substantially centrally pivoted presser foot carrier lever, the other end of which is formed with a gear segment. A pinion and ratchet combination is supported on one end of a pinion carrier lever, the other end of which is carried on the presser foot carrier lever pivot and has a pinion portion thereof in engagement with the gear segment. A combined cam and pawl is provided in which a pawl portion is in engagement with a ratchet portion of the combined pinion and ratchet when the sewing needle extends through the work material so as to lock the pinion against further rotation, depress the pinion and rotate the presser foot carrier lever to elevate the presser foot out of contact with the work material.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: November 6, 1984
    Assignee: The Singer Company
    Inventors: Joseph J. Lukawich, Kenneth D. Adams