Patents by Inventor Clark Thomas Sawyer

Clark Thomas Sawyer 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: 5901811
    Abstract: A lubricant reserve system (10) includes a reservoir tank (18) coupled to an accumulator T fitting (22). Additionally, coupled to the accumulator T fitting (22) is an accumulator pressure monitoring system (24) and an electronically-actuated valve (28). The reservoir tank (18) is adapted to hold a quantity of lubricant and a volume of gas having a gas pressure. The valve (28) opens in response to a control signal generated prior to ignition of an internal combustion engine (12) to prime the engine and closes when the engine (12) is disabled. The accumulator pressure monitoring system (24) is adapted to provide an indication of sufficient priming of the engine (12) prior to ignition of the engine (12). System (10) discharges lubricant (38) from the reservoir tank (18) while the engine (12) is running when the gas pressure is greater than a lubricant pressure of the engine lubrication system (13).
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: May 11, 1999
    Inventors: Andrew L. Samples, Clark Thomas Sawyer