Patents by Inventor James J. Wardle

James J. Wardle 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: 5271132
    Abstract: An automatic stone setting machine includes a vibratory parts feeder which orients the stones in the correct position for pick-up and a pick-up quill which is capable of sensing the position of the stone on the end of the quill. The vibratory parts feeder includes an escapement having a v-shaped track, an aperture at the end of the track and a cover plate mounted over the track. The track and cover plate cooperate to create a passageway which only allows correctly oriented stones to pass through to the pick-up point. The pick-up end of the pick-up quill has an inwardly tapered side portion, a flat seat at the inner end of the tapered side portion and four circumferentially spaced vacuum ports located in the tapered side portion. The flat seat receives the top of the stone and the tapered side portion receives the angled side faces of the stone which block the vacuum ports. A vacuum sensor is provided to sense the level of vacuum applied through the vacuum ports.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: December 21, 1993
    Assignee: Crafford Precision Products Co.
    Inventors: James T. Pepper, James J. Wardle, David P. Braman