Patents by Inventor Hugh T. Dehoff

Hugh T. Dehoff 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: 4834929
    Abstract: A method of making precision low cost molds by applying a plurality of layers of material to a pattern. The method includes providing a pattern of the part to be formed; orienting the pattern on a surface plate in a molding dam; applying a release coating to the surfaces; applying a thin resin layer to form the mold surface; applying a layer of fiber reinforced tooling resin to the thin resin layer; applying an epoxy-dry plaster bonding layer to the tooling resin; inserting a reinforcement framework into the dam; and applying bulk casting plaster to complete the body of the mold.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: May 30, 1989
    Assignee: 3D Manufacturing, Inc.
    Inventors: William A. Dehoff, Hugh T. Dehoff, Chris A. Dehoff