Patents by Inventor John P. Parque

John P. Parque 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: 4561642
    Abstract: A portable vacuum holding device is provided for holding a planar wood workpiece in an elevated position above the flat surface of a workbench so that the workpiece can be conveniently worked upon. The device comprises a plastic molded thin-walled hollow body having four sidewalls with an inwardly rim extending about the upper ends thereof defining a rectangular top opening and an outwardly rim extending about the lower ends thereof defining a rectangular bottom opening. A plastic molded thin-walled sleeve is positioned within a circular opening provided on one of the sidewalls of the hollow body with its shoulder secured by an adhesive to provide an airtight seal. Flat sponge-rubber gaskets are provided on the top and bottom rims. The end connector of a flexible hose provided on a portable vacuum pump is adapted to fit within the sleeve with an airtight fit.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: December 31, 1985
    Inventor: John P. Parque