A safety handle of a fire extinguisher includes a lower handle coupled to an upper end of a valve and having a first hinge shaft at one end thereof and a first support shaft parallel to the first hinge shaft at a point spaced from the first hinge shaft. An upper handle is coupled to the lower handle to be rotatable around the first hinge shaft and downwardly rotate around the first hinge shaft to push an open pin of the fire extinguisher. A second support shaft is parallel to the first hinge shaft at one point. A safety pin prevents the upper handle from rotating. A first link having a first end of a length direction is coupled to the first support shaft to be rotatable around the first support shaft. A second link having a first end of a length direction is coupled to the second support shaft.

A fire detection device and method therefor are able to provide automatic activation so as to extinguish a fire. The fire detection can be rapid and temperature-based. In one embodiment, a heat collector can be provided to enhance thermal responsiveness. Activation of the fire detection device can be electrically induced to release an extinguishing agent at the fire. The activation can be protected such that it is durable and unaffected by vibrations.

A fire detection device and method therefor are able to provide automatic activation so as to extinguish a fire. The fire detection can be rapid and temperature-based. In one embodiment, a heat collector can be provided to enhance thermal responsiveness. Activation of the fire detection device can be electrically induced to release an extinguishing agent at the fire. The activation can be protected such that it is durable and unaffected by vibrations.

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 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 valve body and nozzle assembly for a fire extinguisher includes a valve body that includes a nozzle connection that has a valve body threaded portion. A non-metallic nozzle includes a proximal end that has a valve body connection with a nozzle threaded portion in engagement with the valve body threaded portion. The nozzle threaded portion includes a root portion that has at least one radius of curvature extending between adjacent rows of a thread of the nozzle threaded portion.

A valve body and nozzle assembly for a fire extinguisher includes a valve body that includes a nozzle connection that has a valve body threaded portion. A non-metallic nozzle includes a proximal end that has a valve body connection with a nozzle threaded portion in engagement with the valve body threaded portion. The nozzle threaded portion includes a root portion that has at least one radius of curvature extending between adjacent rows of a thread of the nozzle threaded portion.

What is disclosed is an improved portable fire extinguisher adapted for persons with disabilities that for one reason or another are unable to effectively use two arms and hands to handle a standard portable fire extinguisher. The fire extinguisher is comprised of the standard main components for a portable fire extinguisher; that is, a gas cylinder, a discharge locking seal and pin, a discharge valve and actuating lever, and a discharge hose/nozzle; plus several hardware enhancements that make it easier for a user to don and use the improved fire extinguisher when the user can only use one hand and/or arm. Those hardware enhancements include an upper-handle actuator-extension member with a large vertical torso-engagement area, pivotable stabilizer arms, a cylinder-mounted retaining strap/collar, neck-strap-anchors and neck strap, a pivotable discharge hose/tube sleeve, and a pivotable stop member for preventing inadvertent actuation.