Patent ID: 7370666

Claim:
A fuel-control system for a gas consuming device, said system comprising: a controller; a first source of a first gas received through a first conduit, said conduit leading into a chamber; a first pressure-control valve in said first conduit; a first sensor at a location in said first conduit, said first sensor reading information regarding a first pressure, said information regarding said first pressure being transmittable to said controller; a second source of a second gas derived from a storage container through a second conduit into said chamber; a second pressure-control valve in said second conduit; and a second sensor at a location in said second conduit, said second sensor reading information regarding a second pressure, said information regarding said second pressure being transmittable to said controller; said controller adapted to manipulate said first and second pressure-control valves in response to said first and second readings to maintain a steady pressure level in a third conduit, said third conduit running from said chamber to said gas consuming device.