Patents by Inventor Lyle E. White

Lyle E. White 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).

  • Method and apparatus for packing a granular material for foundry use
    Patent number: 5535809
    Abstract: Core sand material is received in an enclosed chamber and is forced into the cavity of a mold by compressing the air above the sand material with essentially no mixing of the air and sand material. The air is compressed by a piston which forces a pressure packer plate downwardly above the core sand material which is held in the bottom of the chamber by a specially designed baffle control plate assembly ready to be forced by the compressed air into the mold.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: July 16, 1996
    Assignee: Grand Haven Brass Foundry
    Inventor: Lyle E. White