Patent ID: 7013906

Claim:
A gas manifold that provides an uninterrupted supply of gas, comprising: a first gas supply that serves as an online gas supply; a first gas inlet operable to receive said first gas supply having: a first pressure transducer that senses the pressure of the gas at the first gas inlet; and a first regulator operable to regulate the pressure of the gas supplied by the first gas supply; a second gas supply that serves as a reserve gas supply; a second gas inlet operable to receive said second gas supply having: a second pressure transducer that senses the pressure of the gas at the second gas inlet; and a second regulator operable to regulate the pressure of the gas supplied by the second gas supply; a control valve connected to the first and second gas inlets and to a gas outlet; and a microcontroller based control circuit that provides a control signal to said control valve based on signals from said first and second pressure transducers, wherein said circuit directs that said reserve gas supply be placed online when said pressure monitored by said first pressure transducer falls below an electronically established preset level.