Patents by Inventor Harley G. F. Ladd

Harley G. F. Ladd 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).

  • Pleat forming means and method
    Patent number: 4266699
    Abstract: A jig used to both space and form pleats. The jig has one finger which abuts a datum surface on a previously formed pleat (the datum surface being either a sew line or the loop) and another finger over which the material is folded to form a loop, so that each pleat is located from the previously formed pleat. The pleats can be sewn while retained in location by the jig, when the jig is associated with means which locate it with respect to the needle of a sewing machine.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: May 12, 1981
    Inventor: Harley G. F. Ladd