Patent ID: 7231930

Claim:
A propane supply cleaning system for use with a propane burning internal combustion engine and a propane supply system for cleaning elements of the propane supply system, the propane supply system being of the type including a liquid propane tank for holding a quantity of propane, a first conduit fluidly connecting said propane tank and said propane burning internal combustion engine, and a liquid propane regulator and lock-off valve assembly in fluid communication with said first conduit such that propane flowing through said first conduit to said propane burning engine passes through said assembly, said propane supply cleaning system comprising: a connector for interposing in said first conduit between said propane regulator and lock-off valve assembly and said liquid propane tank so that said connector is in fluid communication with said first conduit and propane flowing from said propane tank to said assembly passes through said connector, said connector having a first tube and an inlet tube, said first tube being configured to fluidly communicate with said first conduit, said inlet tube being in fluid communication with said first tube; a container having a valve cleaning fluid therein, said cleaning fluid being pressurized in said container such that said cleaning fluid flows from said container into said second conduit and said connector for flowing into said first conduit and through said propane regulator and lock-off valve assembly when said valve member is opened; a second conduit fluidly connecting the container and the connector; and a valve member fluidly coupled to said container and configured to selectively permit and prevent flow from said container to said connector through said second conduit.