Patents by Inventor Ronald A. Shilhavy

Ronald A. Shilhavy 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: 4880150
    Abstract: A filling machine for repeatedly dispensing predetermined amounts of particulate material comprises a stationary hopper having two spaced-apart spouts; a motor-driven horizontally rotatable upper plate beneath the spouts and having four groups of receiving holes therethrough and a stationary bottom plate beneath the upper plate and having two groups of dispensing holes therethrough. As the upper plate is rotatably driven, the receiving holes align with the spouts, are filled with material, and then align with the dispensing holes through which the material then falls. A sweeper member above the upper plate directs excess material accumulated on the upper plate into emptied receiving holes approaching a spout. A weighted sleeve on each spout slidably engages the upper plate to inhibit material leakage. Each group of receiving holes has a cup plate on the underside of the upper plate with apertures in registery with the receiving holes and slidably engageable with extension tubes from the receiving holes.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: November 14, 1989
    Assignee: Spee-Dee Packaging Machinery Inc.
    Inventors: James P. Navin, Ronald A. Shilhavy, Gary M. Christensen