Patent ID: 8366026

Claim:
A gas valve, comprising: a body including a reservoir for holding a gas, the reservoir including a charge port for filling the reservoir with the gas and an outlet for releasing the gas; an electro-magnetic actuator; a rod sealed with respect to the reservoir, passing through the electro-magnetic actuator, and including: a first end located within the reservoir and including a sealing ring located within the reservoir; and, a second end; a piston affixed to the second end; and, a pneumatic actuator including first and second chambers at least partially formed by the piston, wherein: the electro-magnetic actuator is located between the reservoir and the pneumatic actuator; the sealing ring is located between the outlet and the electromagnetic actuator; the pneumatic actuator is configured to displace the piston and rod in a first direction to seal the outlet with the sealing ring while the electromagnetic actuator is unactivated; and, the electromagnetic actuator is configured to displace the rod in a second direction, opposite the first direction, to unseal the sealing ring from the outlet.