Patents by Inventor Keith Whitefoot

Keith Whitefoot 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).

  • Patent number: 4542836
    Abstract: A liquid dispensing system comprises a supply of liquid (121), a pump (101), a meter (161) and a plurality of dispensing points or stations, (181) each controlled by a solenoid valve (201). A control box (281) monitors the meter and controls by electronic apparatus which station is enabled (that is, which solenoid valve (201) is opened) and displays on a display (261) provided a reading derived from the meter. In one embodiment, selection of a station (181) is effected at the control box but the invention also provides electronic apparatus enabling selection to be effected at each station. The invention does away with the need for a meter at each station and finds application in the dispensing of oil or the like in garage workshops.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: September 24, 1985
    Assignee: Castrol Limited
    Inventors: David J. Sparks, Keith Whitefoot, John S. Knubley