Patents by Inventor Rebecca J. Cotton

Rebecca J. Cotton 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 and apparatus for the production of a liquid cryogen
    Patent number: 6484533
    Abstract: A process of liquefying gas to produce a liquid cryogen comprising compressing a gas stream using a compressor, work expanding the compressed gas stream using at least one expansion turbine to produce an expanded gas stream together with power, mechanically transferring the power generated by the expansion turbine(s) to drive the compressor, using the expanded gas stream to provide refrigeration duty for liquefaction, and recycling the cooled expanded compressed gas stream to the compressor.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: November 26, 2002
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Rodney J. Allam, Rebecca J. Cotton, John Lloyd Dillon, IV, Declan P. O'Connor