Patents by Inventor Phillip S. Han

Phillip S. Han 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).

  • Self-aligning manual die set for pressing explosive powder into pellets
    Patent number: 6261082
    Abstract: A manual die set for pressing explosive powder into pellets includes a ram, the ram having a head, a large diameter portion, a tapered portion, a small diameter portion and a pressing portion; a die defining an opening therethrough for receiving the ram, the opening including a large diameter portion, a tapered portion and a small diameter portion, the large diameter portion of the opening having a diameter less than or equal to about 0.002 inches larger than a diameter of the large diameter portion of the ram; a baseplate disposed in a bottom of the opening in the die; and a die holder for supporting the die and the baseplate when the manual die set is in a pressing configuration; wherein vertical alignment of the ram is maintained by insertion of the large diameter portion of the ram in the large diameter portion of the opening in the die.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: July 17, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Phillip S. Han