Patents by Inventor Ralph T. Eddinger

Ralph T. Eddinger 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).

  • Fluidized coal carbonization
    Patent number: 4213826
    Abstract: In the multi-stage fluidized carbonization of coal to produce, oil, gas and char, oil containing vapors from the first stage are used as the fluidizing gas to dry the incoming coal feed. The oil vapor pressure of the fluidizing gas is maintained at a value under 10 mm. to prevent oil condensation in the fluidized drying vessel. The technique makes possible the recovery of sensible heat from the first stage overheads.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: July 22, 1980
    Assignee: Cogas Development Company
    Inventors: Ralph T. Eddinger, Louis D. Friedman