Patents by Inventor John D. Kastre

John D. Kastre 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: 5226377
    Abstract: A set of modified plate and needle pressure feet for use in a standard commercial sewing machine. The plate pressure foot features a single inside toe that is narrower and shifted closer to its bar, and therefore to the needle, than in standard machines. The needle pressure foot consists of two separate toes, instead of the normal slotted structure, and is asymmetric with a narrower inside toe that accommodates the shift of the plate pressure foot towards the needle. A raised needle plate insert is also provided with a rounded outside edge, for smoother advancement of the material, and a flat inside edge, for better support of the material against the narrower plate pressure foot. These accessory parts, in combination, allow a user to sew a narrower seam and smaller corners than otherwise possible with conventional equipment.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: July 13, 1993
    Inventor: John D. Kastre