Patents by Inventor Richard P. Greenaway

Richard P. Greenaway 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 solid recovery of waste toner
    Patent number: 5136338
    Abstract: Apparatus for recovering waste toner in a copier or printer includes a rotatable heating drum and a heat source for heating the drum so that its exterior surface reaches a temperature sufficient to melt toner particles. Waste toner particles that are removed by a cleaning apparatus are fed through a chute onto the surface of the heating drum for melting. A rotatable receiving roller forms a transfer nip with the heating drum for transfer receiving melted toner from the heating drum. Melted toner on the receiving roller is cooled off into a solid mass or plug of toner for clean, safe disposal.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: August 4, 1992
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Greenaway, Thomas W. Bober, Kent A. Randall