Improvements to a portable fire extinguisher are disclosed. The improvements allow for frequent and simplified maintenance of a fire extinguisher with minimal training and without need for custom equipment. The improvements include an anti-bridging mechanism that can be articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. These features will extend the service intervals while maintaining the fire extinguisher in a ready condition.

An agitator for disposition within a cavity of a vessel body containing a particulate includes a weighted portion and a stirring portion. The agitator is positioned and disposed relative to the vessel body to move the stirring portion through the particulate in response to movement of the weighted portion in response to gravitational and/or inertial forces acting on the weighted portion due to movement of the vessel body. Particulate storage vessel arrangements and methods of particulate mixing are also described.

Improvements to a portable fire extinguisher are disclosed. The improvements allow for frequent and simplified inspection and maintenance of a fire extinguisher with minimal training and without need for custom equipment. The improvements include an anti-bridging mechanism that can be articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. Additional improvements include a larger opening to more quickly fill and inspect the powder within the chamber. Another improvement includes the use of a CO.sub.2 cartridge located external to the chamber to allow easier servicing or replacement of just the CO.sub.2 cartridge as well as the ability to maintain the chamber in an un-pressurized condition, allows for non-HASMAT shipping. These features will extend the service intervals while maintaining the fire extinguisher in a ready condition.

An automatic fire extinguishing system has a tank that contains fire extinguishing agents, and a housing. The housing has a glass bulb retained therein where the glass bulb is exposed by a side connecting hole, and contacted by a moving member that is biased by an elastic body against the glass bulb. When heat is transferred via the side connecting hole to the glass bulb to break the glass bulb, the elastic body biases the moving member to cause the guiding bars to push a striking member so that a striking protrusion on the striking member breaks a membrane that covers the opening of the tank, thereby allowing the pressurized fire extinguishing agents to escape.

An automatic fire extinguishing system has a tank that contains fire extinguishing agents, and a housing. The housing has a glass bulb retained therein where the glass bulb is exposed by a side connecting hole, and contacted by a moving member that is biased by an elastic body against the glass bulb. When heat is transferred via the side connecting hole to the glass bulb to break the glass bulb, the elastic body biases the moving member to cause the guiding bars to push a striking member so that a striking protrusion on the striking member breaks a membrane that covers the opening of the tank, thereby allowing the pressurized fire extinguishing agents to escape.

Provided is an automatic fire extinguisher providing a simplified operation method for easily pulling out a safety pin while a handle is strongly grasped and allowing a spray hose to automatically aim a flame, and, furthermore, which is easily recognizable even from a distance when the safety pin is separated at normal times. The automatic fire extinguisher includes a main body vessel (55) in which a fire extinguishing agent is filled, a lower handle (2) coupled to a plug (4) disposed on an upper portion of the main body vessel (55), and an upper handle (1) coupled to the lower handle (2) through a first hinge shaft (19).

Provided is an automatic fire extinguisher providing a simplified operation method for easily pulling out a safety pin while a handle is strongly grasped and allowing a spray hose to automatically aim a flame, and, furthermore, which is easily recognizable even from a distance when the safety pin is separated at normal times. The automatic fire extinguisher includes a main body vessel (55) in which a fire extinguishing agent is filled, a lower handle (2) coupled to a plug (4) disposed on an upper portion of the main body vessel (55), and an upper handle (1) coupled to the lower handle (2) through a first hinge shaft (19).

A pressure gauge for an aerosol container includes a scale attached to the container body and a pointer associated with and movable relative to the scale. The pointer is operatively coupled to a valve assembly of the aerosol container. The pointer moves relative to the scale in response to movement of at least a portion of the valve assembly due to internal pressure in the container body to provide a reading.

A fire suppression apparatus is configured to spray a fire suppressant agent and includes a reservoir and a nozzle. The nozzle is fluidly coupled to the reservoir and includes an inlet aperture, an outlet aperture, a passageway, and a diverter. The passageway extends between the inlet aperture and the outlet aperture. The diverter is disposed within the passageway and includes multiple diverter passageways configured to receive the fire suppressant agent from an inner volume of the diverter and direct the fire suppressant agent towards an inner sidewall of the passageway.

Devices and methods for dispensing a fluidly dispensable material under pressure but without using a gas propellant are presented. In some embodiments an elastic sleeve is utilized to impart pressure to a bag of dispensable material positioned within the sleeve. Pressure so created pressurizes contents of the bag, which can then be dispensed through a valve. Methods for manufacturing various embodiments are presented.