Patents by Inventor Fred E. Knoffsinger

Fred E. Knoffsinger 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).

  • Continuous heating process for producing char from cellulosic material
    Patent number: 4329202
    Abstract: This invention comprises an apparatus and process for drying and/or heating materials. This invention was designed for use in the production of charcoal from wood feed material; however, it can be used to heat and/or dry many types of materials. Feed material is disposed in a reactor, wherein there is provided a first array of input channels extending through said feed material, through which hot gases are introduced into said feed material, and a second array of output channels extending through said feed material to collect and exit those hot gases and any gases or vapors derived from the heating and/or drying of the feed material.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: May 11, 1982
    Assignee: Enerco, Inc.
    Inventors: Eugene W. White, Francis M. Gross, Fred E. Knoffsinger
  • Continuous drying and/or heating apparatus
    Patent number: 4165216
    Abstract: This invention comprises an apparatus and process for drying and/or heating materials. This invention was designed for use in the production of charcoal from wood feed material; however, it can be used to heat and/or dry many types of materials. Feed material is disposed in a reactor, wherein there is provided a first array of input channels extending through said feed material, through which hot gases are introduced into said feed material, and a second array of output channels extending through said feed material to collect and exit those hot gases and any gases or vapors derived from the heating and/or drying of the feed material.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: August 21, 1979
    Assignee: Enerco, Inc.
    Inventors: Eugene W. White, Francis M. Gross, Fred E. Knoffsinger