Patents by Inventor Melvin C. Hawke

Melvin C. Hawke 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).

  • Die casting machine with compound docking/shot cylinder
    Patent number: 5632321
    Abstract: A vertical die cast apparatus having a novel docking/shot assembly in which the docking and docking cylinder and shot cylinder are constructed in one compound cylinder. A novel construction for supporting the docking/shot assembly is also provided.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: May 27, 1997
    Assignee: Prince Machine Corporation
    Inventors: Robert W. Hegel, Melvin C. Hawke
  • Die casting machine with safety bar
    Patent number: 5553659
    Abstract: A metal die casting machine having a safety bar mechanism for cushioning the stopping action of a movable platen when it is stopped prior to reaching the closed position of the dies. One embodiment provides a two-part bar connected together by a cushioning means. A second embodiment mounts a cushioning means on one of the platens, preferably the movable platen.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: September 10, 1996
    Assignee: Prince Machine Corporation
    Inventors: Robert W. Hegel, Melvin C. Hawke, William P. Damian, Jon R. Mullen
  • Tong and belt apparatus for a tong
    Patent number: 4774860
    Abstract: A tong having a non-endless or an endless flexible belt. A belt assembly for mounting, disposing, and moving a flexible belt in a tong or in the rotary of tongs having rotary elements.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: October 4, 1988
    Assignee: Weatherford U.S., Inc.
    Inventor: Melvin C. Hawke