Patents by Inventor Dawn F. Abbey

Dawn F. Abbey 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).

  • Apparatus and process for the separation and reclamation of selected components in grease trap waste
    Patent number: 5225085
    Abstract: A process for separating the grease, solids and water components from grease such as grease traps and fry grease. The grease is collected and introduced into a primary holding tank to effect primary crude separation. The grease is removed to a second stage separator for further concentration. The water and solids are separately directed to a second stage to separate these components. The separated water is treated suitable for discharge into a sewer. The solids are dried and the solids and grease are then suitable for re-use. In the preferred embodiment, the separators are centrifuges. Heating of the grease may also be necessary to achieve proper viscosity for handling and to remove bacteria.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: July 6, 1993
    Inventors: Laksir P. Napier, Tommy L. Mortensen, Dawn F. Abbey