A water spraying fan for firefighting. The water spraying fan includes a fan mechanism mounted onto a rotatable surface attached to a base. The fan mechanism has a plurality of fan blades connected to a power source and adapted to rotate quickly, creating a strong air flow when powered on. A cage encloses the fan blades and includes one or more circular manifolds secured to a front side and positioned concentric to the fan blade axis. The manifolds contain a plurality of nozzles that are configured to disperse a liquid, such as water. The manifolds are connected to a water source via a flow control box. When activated, water flows out of the nozzles and is carried across an extended distance via the water pressure and the strong air flow created by the fan mechanism. The water spraying fan can be rotated or tilted to achieve optimal positioning.

A fire fighting device comprises a fire fighting aggregate (3) for penetrating a wall (5) and injecting fire fighting fluid into a space behind the wall. The fire fighting aggregate (3) comprises: a fluid driven rotating motor, such as a turbine, with a rotor (303) carrying a rotating cutting element (305), and a fluid inlet (109) for receiving fire fighting fluid to drive the rotor (303); a support (1) for attachment to the wall (5) suspending the fire fighting aggregate (3), at least the rotating cutting element (305) being movable relative to the support (1) towards the wall (5); a power means (322, 340) for pressing the rotating cutting element (305) towards the wall (5); and a second conduit for feeding the fire fighting fluid to the power means (322, 340) to provide for said power means (322, 340) to press the rotating cutting element (305) towards the wall (5).

Various sprinkler head protective case devices are disclosed. These devices provide substantial physical protection to sprinkler heads from accidental damage and/or activation thereof during temporary periods of construction and maintenance. The devices include fire and heat resistant shells that selectively close to surround the sprinkler head and open to permit removal therefrom. Cushioning pads are provided for more stable assemblies, and the shells can be locked into place so that the protective case devices do not accidentally become dislodged.

A bracket assembly includes an inner plate defining a first end and a second end opposite the first end; an outer plate defining a first end and a second end opposite the first end, the outer plate substantially parallel with the inner plate; a first member extending from the second end of the inner plate, the first member defining a first free end distal to the inner plate; and a second member extending from the second end of the outer plate, the second member defining a second free end distal to the outer plate; wherein at least one of the first free end and the second free end is angled away from the other of the first free end and the second free end, such that a distance between the first member and the second member increases towards the first and second free ends.

A bracket assembly includes an inner plate defining a first end and a second end opposite the first end; an outer plate defining a first end and a second end opposite the first end, the outer plate substantially parallel with the inner plate; a first member extending from the second end of the inner plate, the first member defining a first free end distal to the inner plate; and a second member extending from the second end of the outer plate, the second member defining a second free end distal to the outer plate; wherein at least one of the first free end and the second free end is angled away from the other of the first free end and the second free end, such that a distance between the first member and the second member increases towards the first and second free ends.

A wall-mountable spray head unit (11) is described. The spray head unit comprises a rotatable spray head assembly (8.sub.1, 8.sub.2; FIG. 9, 8.sub.3; FIG. 17) which comprises a spray manifold (18.sub.1, 18.sub.2; FIG. 9) rotatable about a first axis (17), a spray nozzle (19) supported by the spray manifold and orientated to deliver fire-suppressant material radially in a plane in a plane defined by the first axis and a second axis which is perpendicular to the first axis, and at least one thermal sensor (20).

A wall-mountable spray head unit (11) is described. The spray head unit comprises a rotatable spray head assembly (8.sub.1, 8.sub.2; FIG. 9, 8.sub.3; FIG. 17) which comprises a spray manifold (18.sub.1, 18.sub.2; FIG. 9) rotatable about a first axis (17), a spray nozzle (19) supported by the spray manifold and orientated to deliver fire-suppressant material radially in a plane in a plane defined by the first axis and a second axis which is perpendicular to the first axis, and at least one thermal sensor (20).

Sprinkler guards to protect fire protection sprinklers in their installed and operative positions. A fire protection sprinkler guard includes a structure with a hinged arrangement to flexibly receive a fire protection sprinkler. A latch connection operates in combination with the hinge of the guard to form a rigid cage structure to shield and protect the sprinkler.

Sprinkler guards to protect fire protection sprinklers in their installed and operative positions. A fire protection sprinkler guard includes a structure with a hinged arrangement to flexibly receive a fire protection sprinkler. A latch connection operates in combination with the hinge of the guard to form a rigid cage structure to shield and protect the sprinkler.

A system for detecting and extinguishing fires occurring within a predetermined observation area in response to commands received from a monitoring center. The system includes a source of fire retardant liquid and a monitor for selectively directing liquid to the observation area. A valve is disposed in fluid communication between the source and the monitor and is selectively movable between a closed position wherein liquid is prevented from flowing through the valve, and an open position wherein liquid can flow through the valve. An infrared camera generates a signal in response to temperature changes occurring in the observation area. A network switch is provided for communicating with the monitoring center. A control unit in communication with the valve, the camera, and the network switch relays the signal to the monitoring center and moves the valve between the positions in response to commands received from the monitoring center.