Patent ID: 7624774

Claim:
A nitrogen-for-air substitution device comprising: a nitrogen gas source; a gas supply line operably connected between said nitrogen gas source and a controller; a gas delivery line comprising a manifold with a plurality of outlets that are in fluid communication with each other, said gas delivery line operably connected to said controller; a plurality of extension lines each comprising an engagement chuck at a distal end thereof, wherein each extension line is operably connected to a corresponding one of said plurality of outlets; said controller operable to control the supply of gas from said gas supply line to said gas delivery line and further operable to control a relief valve for venting said gas delivery line; a sensor operable to detect a gas characteristic; a processor operably connected to said controller and said sensor and operable to accept user input; and, a stand wherein the controller, manifold and processor are affixed thereto; and, wherein the processor controls the controller based on a characteristic detected by the sensor and a predetermined duty cycle, said predetermined duty cycle comprising at least an evacuation cycle followed by an inflation cycle.