Patents by Inventor Peter Holsgrove

Peter Holsgrove 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).

  • Filtration of molten material
    Patent number: 5322546
    Abstract: An apparatus for filtering molten material, such as a molten metal-ceramic particle mixture, includes a porous cloth filter located so that the mixture must pass through the cloth filter, and a mechanical filter shaker that prevents the accumulation of filtered solids on the porous cloth filter. Where a further degree of filtration is required, there is a second filter located so that material leaving the porous cloth filter passes through the second filter after it passes through the porous cloth filter, and a mechanism that prevents an accumulation of filtered solids on the second filter. The second filter is desirably a porous media filter.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: June 21, 1994
    Assignee: Alcan International Limited
    Inventors: Peter Holsgrove, Luc Montgrain, Richard S. Bruski, Gary Hust