Patents by Inventor Robert Yawgyamfi Andoh

Robert Yawgyamfi Andoh 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).

  • Separator with solids diverter
    Patent number: 6187178
    Abstract: A separator includes a barrier 53 for retaining solid material thereon and an automatic mechanism for alternately preventing and allowing the flow of liquid to the separator outlet. When the flow is prevented, the liquid backs up through the barrier and washes the solids to a solids collection region 55. In one embodiment, the automatic mechanism includes a pivoted flap 101 and, in another embodiment, a siphon.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: February 13, 2001
    Assignee: Hydro International PLC
    Inventors: Paul Jeremy Lecornu, Bruce Peter Smith, Robert Yawgyamfi Andoh