Patents by Inventor Hendrik Van Leemput

Hendrik Van Leemput 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: 4000235
    Abstract: An improved method for isostatically molding an elongated, cylindrical article from a powdered material. In accordance with the improved method, a mold, containing powdered material, is placed within a two-piece, perforated canister. The two pieces which form the canister are then resiliently clamped together. Thereafter, in accordance with conventional practice, the canister and the mold containing the powdered material are subjected to an isostatic pressing process. During the decompression step of this process, the mold may radially expand by pressing outwardly against the two-piece canister and thereby causing radial movement of the two-piece canister.By the use of this improved process, it has been found that long, slender rods can be isostatically molded whereas many prior art attempts to mold such rods have not been successful.
    Type: Grant
    Filed: May 13, 1975
    Date of Patent: December 28, 1976
    Assignee: National Forge Company
    Inventor: Hendrik Van Leemput