Patents by Inventor Frank Rigby

Frank Rigby 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 pressing of ceramic materials
    Patent number: 4382053
    Abstract: The hot pressing of ceramic material in dies forming a column, each die being shaped to interfit and cooperate with adjacent dies to cause densification of ceramic material within the dies when pressure is applied to the column. The column of dies is passed intermittently through a fixed, heated zone and pressure is applied to the column intermittently to move the dies through the heated zone and, as a separate step, to compress the column and cause densification of ceramic material in the dies.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: May 3, 1983
    Assignee: United Kingdom Atomic Energy Authority
    Inventor: Frank Rigby