US Patent 7,121,354

This patent discloses a fire extinguishing device and associated methods. The device is adapted to be positioned in proximity to a fire and operable in response to heat output by the fire.

Abstract: A fire extinguishing device and associated methods. The device is adapted to be positioned in proximity to a fire and operable in response to heat output by the fire. The device includes a first reservoir, containing a fluid, adapted to receive the heat from the fire and thereby exert a pressure and a second reservoir, communicating with the first reservoir, containing a fire fighting material. The device further includes a pressure-sensitive membrane, forming a pressure-sensitive barrier between the first reservoir and the second reservoir, adapted to rupture upon a predetermined pressure being attained in the first reservoir and thereby releasing a steam into the second reservoir. The steam expels the fire fighting material onto the fire. Additionally disclosed are methods for using the device to control and extinguish fires. Currently fire protection and prevention is provided by many methods. This extinguisher system is not like the rest. It is a new and unique method to fight fires. Our extinguisher does not need a water source or compressed gas system for deployment.  It contains its own energy source that is activated from the heat of the fire. After activation the device propels a fire extinguishing agent onto the fire. This agent is “Blown out” of the device which removes heat and displaces the oxygen needed to continue burning. The device can be thrown into a fire or placed strategically to intercept a moving fire. The user need not be present to set off the extinguisher since the heat of the fire will activate it at the precise time.

Product Highlights

• Patented
• Fire/Heat activated
• Biodegradable
• Non-toxic
• Can be recharged
• Stationary or deployable
• No external energy source needed