Patents by Inventor Dean Alan Percival

Dean Alan Percival 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).

  • Dispensing apparatus with coding means
    Patent number: 7104467
    Abstract: A liquid flow restrictor in the supply line of an eductor or other dilution or dispensing device has a rotatably mounted disc with opposite faces and a plurality of apertures or holes, which provide different flow restrictions between the faces, and a pair of flow conduits sealingly engaging against the faces, whereby on rotation of the member the zones are selectively brought into communication with the conduits to provide a desired flow restriction.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: September 12, 2006
    Assignee: JohnsonDiversey, Inc.
    Inventors: Garry William Crossdale, Brian Peter Onufryk, Dean Alan Percival