Patents by Inventor Duffer Brooks Crawford

Duffer Brooks Crawford 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).

  • Parallel steam reformers to provide low energy process
    Patent number: 4079017
    Abstract: A low energy process for the production of hydrogen-rich gas which involves the process sequence of primary reforming and secondary reforming includes parallel steam reformers for the primary reforming of the hydrocarbon feed, one portion of the hydrocarbon feed being heated using radiant heat, i.e., a steam reforming furnace, and another portion of the hydrocarbon feed being heated using indirect heat exchange with the effluent from the secondary reforming, i.e., an exchanger-reactor.
    Type: Grant
    Filed: November 19, 1976
    Date of Patent: March 14, 1978
    Assignee: Pullman Incorporated
    Inventors: Duffer Brooks Crawford, Colman Lee Becker, Joseph Ray LeBlanc