Patents by Inventor Douglas Bruce Feicht

Douglas Bruce Feicht 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).

  • Vacuum pickup tool for placing balls in a customized pattern
    Patent number: 5749614
    Abstract: A vacuum pickup tool (10) is effective to carry balls (18) arranged in a desired pattern. The vacuum pickup tool (10) includes a manifold (12) that includes a carrier plate (22) that has a plurality of manifold bores (28) arranged in a pattern. The manifold (12) defines a vacuum chamber (20) that reduces gas pressure in the manifold (12) to allow the manifold bores (28) to retain a ball (18). The manifold (12) further includes a retaining plate (14) that overlies the carrier plate (22) and includes a plurality of retaining plate bores (30) arranged in a pattern such that each retaining plate bore (30) registers with a corresponding manifold bore (28). The retaining plate (14) is effective to secure a stencil (16) formed of a gas-impermeable sheet against the carrier plate (22) to prevent gas flow between a manifold bore (28) and a corresponding retaining plate bore (30).
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: May 12, 1998
    Assignee: Motorola, Inc.
    Inventors: Ellen Margaret Reid, Douglas Bruce Feicht, Dennis Brian Miller, Daniel Joseph Viza, Mark William McGarry