Patents by Inventor Alexander W. Duncan

Alexander W. Duncan 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: 4102043
    Abstract: Apparatus for inserting electrical connecting pins or terminals into preformed holes in a circuit board, the apparatus comprised of a vibrating table means and a press means having parallel first and second plattens, a parallel intermediate platten positioned between the first and second plattens by resilient means, the first platten having perpendicularly attached stand-off posts aligned with pin guide holes in the intermediate platten and with pin clearance holes in the second platten, the first and second plattens having slidably attached positioning means for positioning the intermediate platten in two different positions during operation, a pin loading means with template having slidably attached gate means and having tapered holes, the gate means having holes alignable with the pin guide holes and the tapered holes.
    Type: Grant
    Filed: January 17, 1978
    Date of Patent: July 25, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Ralph W. Andrade, Alexander W. Duncan