Patents by Inventor John Frederick Woolley

John Frederick Woolley 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).

  • Chemical reaction vessel
    Patent number: 3933440
    Abstract: A gas-tight chemical reaction vessel for the chemical analysis of an intractable material such as glass. The reaction vessel comprises a body having at least two concentric chambers, one of which is adapted to contain a reagent, at least one other of which is adapted to receive a sample cap which in turn is adapted to receive a sample. The reaction vessel has a sealing member for sealing the chambers of the body and a cap for securing the sealing member against the body. The body, sealing member and sample cap are made of a material, desirably polytetrafluoroethylene, which is chemically inert to the reagents.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: January 20, 1976
    Assignee: International Telephone and Telegraph Corporation
    Inventor: John Frederick Woolley