Patents by Inventor Audrey Mack

Audrey Mack 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).

  • Foot leveling sewing aid and method of use
    Patent number: 4509444
    Abstract: A plurality of like fabric layers, each of which is formed with a concavely curved edge, a convexly curved edge, and a straight edge, are held together at one end with a metal grommet. A selected edge and selected numbers of layers are disposed under a presser foot against a thickened edge of material to be sewn to support and maintain the presser foot level, and to thereby prevent stitch shortening.
    Type: Grant
    Filed: April 27, 1983
    Date of Patent: April 9, 1985
    Assignee: The Singer Company
    Inventors: Clarice M. Howe, Audrey Mack