The present disclosure describes a handheld fire extinguisher comprising a housing, a container disposed within the housing, where the container is configured to store a fire suppressant material, and a nozzle. The handheld fire extinguisher can also include a pump in fluid communication with the container and the nozzle, where the pump is configured to pump the fire suppressant from the container to the nozzle, a battery configured to selectively power the pump, and a controller in signal communication with the battery and configured to control operation of the battery.

An apparatus for inerting a space includes a metal-air battery, a feed channel for the introduction of air from an air source to the metal-air battery, and a discharge channel for the discharge of air from the metal-air battery to a volume of the space. A control unit controls an electrochemical reaction of the metal-air battery as a function of a fire situation within the space. A method for inerting a space, an inerting system, an inerting method and an aircraft or spacecraft are also provided.

An apparatus for inerting a space includes a metal-air battery, a feed channel for the introduction of air from an air source to the metal-air battery, and a discharge channel for the discharge of air from the metal-air battery to a volume of the space. A control unit controls an electrochemical reaction of the metal-air battery as a function of a fire situation within the space. A method for inerting a space, an inerting system, an inerting method and an aircraft or spacecraft are also provided.

Systems and methods are described for securely monitoring a shipping container for an environmental anomaly using elements of a wireless node network of sensor-based ID nodes disposed within the container and a command node associated with the container. The method has the command node identifying which of the ID nodes are confirmed as trusted sensors based upon a security credential specific to each of the ID nodes; monitoring only the confirmed ID nodes for sensor data broadcast those ID nodes; detecting the anomaly based upon the sensor data from at least one of the confirmed ID nodes; automatically generating an alert notification related to the detected environmental anomaly for the shipping container; and transmitting the alert notification to the external transceiver to initiate a mediation response related to the detected environmental anomaly.

Systems and methods are described for securely monitoring a shipping container for an environmental anomaly using elements of a wireless node network of sensor-based ID nodes disposed within the container and a command node associated with the container. The method has the command node identifying which of the ID nodes are confirmed as trusted sensors based upon a security credential specific to each of the ID nodes; monitoring only the confirmed ID nodes for sensor data broadcast those ID nodes; detecting the anomaly based upon the sensor data from at least one of the confirmed ID nodes; automatically generating an alert notification related to the detected environmental anomaly for the shipping container; and transmitting the alert notification to the external transceiver to initiate a mediation response related to the detected environmental anomaly.

A fire suppressant assembly includes a fluid reservoir that contains an extinguishing fluid and the fluid reservoir is positioned within a predetermined distance of a building. A pump is positioned below ground and the pump is in fluid communication with the fluid reservoir to urge the extinguishing fluid outwardly from the fluid reservoir. A plurality of stand pipes is each of the stand pipes is distributed around the building and each of the stand pipes receives the extinguishing fluid from the pump. A plurality of nozzles is each of the nozzles is coupled to a respective one of the stand pipes to spray the extinguishing fluid outwardly from the nozzles onto the roof of the building to inhibit the roof of the building from combusting.

A fire suppressant assembly includes a fluid reservoir that contains an extinguishing fluid and the fluid reservoir is positioned within a predetermined distance of a building. A pump is positioned below ground and the pump is in fluid communication with the fluid reservoir to urge the extinguishing fluid outwardly from the fluid reservoir. A plurality of stand pipes is each of the stand pipes is distributed around the building and each of the stand pipes receives the extinguishing fluid from the pump. A plurality of nozzles is each of the nozzles is coupled to a respective one of the stand pipes to spray the extinguishing fluid outwardly from the nozzles onto the roof of the building to inhibit the roof of the building from combusting.

The invention relates to a constant-pressure valve (45), in particular for an alarm valve station (100) of a sprinkler system (200), having a fluid inlet (16), a fluid outlet (15), a flow channel between the fluid inlet and the fluid outlet, and a control piston (3, 8) which is arranged in the flow channel and which is movable back and forth between a standby position and a triggering position and which has a first piston surface (S.sub.1) facing toward the flow channel and has a second piston surface (S.sub.2).

It is proposed according to the invention that the constant-pressure valve has a switching chamber which is separate from the flow channel and which has a switching pressure inlet (4) in fluid communication with the switching chamber, wherein the second piston surface (S.sub.2) faces toward the switching chamber (4a), wherein the constant-pressure valve (45) has a securing element (21) which is coupled to the control piston (3, 8) of the constant-pressure valve (45) and which, in the standby position, absorbs the forces acting on the first piston surface (S.sub.1) of the control piston (3, 8).

A battery arrangement for a motor vehicle for fighting a battery fire. The battery arrangement includes a battery having at least one battery cell, which is arranged in a battery housing. A charging device is designed to provide electrical energy to the at least one battery cell when connected to a motor vehicle-external energy supply system. Furthermore, a detection device is formed for detecting a predetermined heating state of the battery, which indicates that a battery fire is present or at least imminent. The charging device also includes an extinguishing agent supply unit for fighting fires. The extinguishing agent supply unit is designed, when connected to a motor vehicle-external extinguishing agent reservoir and when the predetermined heating state is present, to provide a predetermined extinguishing agent for supply into the battery housing.

An apparatus, system and method have a sensor positioned above a rear axle attached to a brake of a trailer. The sensor detects whether the temperature of the brake exceeds a threshold temperature. A light is mounted on the trailer and activates in response to the temperature of the brake exceeding the threshold temperature. A handle is pulled to distribute a fluid on the rear axle of the trailer. A conduit extends across the underside of the trailer wherein the conduit carries the fluid. A nozzle sprays the fluid over the rear axle.