Patents by Inventor Mark E. Stapel

Mark E. Stapel 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).

  • Electronically geared sewing machine
    Patent number: 5839382
    Abstract: This invention relates to a method and apparatus for electronically gearing the sewing parts of a sewing machine, and more particularly it relates to electronically gearing the bobbin to the needle to eliminate the necessity of their physical coupling through mechanical linkages and drive shafts. Servo motors provide torque to the needle, bobbin, and various other sewing parts of the sewing machine which require concerted movement. A computer uses servo motor positional information to calculate motion commands that are sent to the needle and bobbin servo motors, thereby enabling electronic gearing of the bobbin to the needle so that each moves substantially in unison. Motion commands sent to servo motors attached to various other sewing parts of the sewing machine are based on servo motor positional information to enable the sewing parts to move in concert with the needle and bobbin.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: November 24, 1998
    Assignee: Tice Engineering and Sales, Inc.
    Inventors: William A. Tice, Moshe Shloush, Mark E. Stapel, Gregory A. Davis
  • Electronically geared sewing machine
    Patent number: 5458075
    Abstract: This invention relates to a method and apparatus for electronically gearing the sewing parts of a sewing machine, and more particularly it relates to electronically gearing the bobbin to the needle to eliminate the necessity of their physical coupling through mechanical linkages and drive shafts. Servo motors provide torque to the needle, bobbin, and various other sewing parts of the sewing machine which require concerted movement. A computer uses servo motor positional information to calculate motion commands that are sent to the needle and bobbin servo motors, thereby enabling electronic gearing of the bobbin to the needle so that each moves substantially in unison. Motion commands sent to servo motors attached to various other sewing parts of the sewing machine are based on servo motor positional information to enable the sewing parts to move in concert with the needle and bobbin.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: October 17, 1995
    Assignee: Tice Engineering and Sales, Inc.
    Inventors: William A. Tice, Moshe Shloush, Mark E. Stapel