Patents by Inventor John W. Ellemor

John W. Ellemor 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 of moulding a sheet including the use of heated barrier fluid
    Patent number: 5283029
    Abstract: A method of and apparatus for moulding preformed material with a forming mould (1), tool, membrane or bag, in which as the material (A) is being moulded or shaped, a temperature controlled fluid is introduced at a sufficient pressure to act as a barrier between the material and the forming mould, tool, membrane or bag so that thickness of the article formed can be selectively controlled.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: February 1, 1994
    Inventor: John W. Ellemor