Patents by Inventor Dennis Smedley

Dennis Smedley 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).

  • Hot chamber die-casting
    Patent number: 4482001
    Abstract: A gooseneck assembly (10) for hot chamber die-casting comprises a shot cylinder (12), an injection duct (16) leading from the bottom of the cylinder to a die (18), and a reservoir (20) which communicates with the shot cylinder through openings (22, 23 and 24) in a partition wall (21). The upper ends of the shot cylinder and reservoir are closed and a protective atmosphere is maintained above a level (6A) of molten metal in the assembly. The assembly is automatically recharged with molten metal from a separate crucible (3) through a syphon pipe (30).
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: November 13, 1984
    Assignee: Magnesium Castings Limited
    Inventors: Dennis Smedley, Noel C. Spare
  • Hot chamber die-casting
    Patent number: 4408651
    Abstract: A gooseneck assembly (10) for hot chamber die-casting comprises a shot cylinder (12), an injection duct (16) leading from the bottom of the cylinder to a die (18), and a reservoir (20) which communicates with the shot cylinder through openings (22, 23 and 24) in a partition wall (21). The upper ends of the shot cylinder and reservoir are closed and a protective atmosphere is maintained above a level (6A) of molten metal in the assembly. The assembly is automatically recharged with molten metal from a separate crucible (3) through a syphon pipe (30).
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: October 11, 1983
    Assignee: Promagco Limited
    Inventors: Dennis Smedley, Noel C. Spare