Patent ID: 6874404

Claim:
A method for controlling the delivery of compressed air to a tool, the method comprising the steps of: a) receiving compressed air from an air pressurizing source; b) determining whether said compressed air is flowing or static, c) when said compressed air is flowing, controlling the flow rate by sensing the flow rate of compressed air between a first point and a second point, and comparing the sensed flow rate to a desired flow rate, thereby directing said compressed air to said tool, and; d) when said compressed air is static, limiting the pressure of the compressed air to a predetermined maximum value; wherein said method further comprises: introducing said compressed air into a primary pressure regulator; equalizing the pressure of the air output with the pressure set on the static air regulator; upon airflow, developing a pressure drop that triggers an airflow switch, which in turn changes the control pressure from regulated to main line air; opening the regulator to a full open position; and, activating an airflow timer to provide an adjustable delayed control signal.