Horizontal window fire protection sprinklers, systems and methods are provided. The sprinklers include a frame and a fluid deflection member including a window confronting surface having a planar portion and a concave portion. The sprinkler defines a maximum operating pressure of at least 100 psi. per sprinkler for adjacent sprinklers without cold soldering.

A sprinkler for a fire suppression system includes a deflector plate having five different types of slots extending from a periphery of the plate toward a center of the plate along radially extending lines. The slots are arrow shaped, club shaped and key hole shaped. Arrow head slots which align with frame arms supporting the deflector plate are wider than the thickness of the frame arms. Club shaped and arrow shaped slots proximate the plane of the frame arms are asymmetrical with respect to radial lines extending from the center of the plate, while arrow shaped and key hole shaped slots distal to the plane of the frame arms are symmetrical with respect to radial lines extending from the center of the plate.

A sprinkler for a fire suppression system includes a deflector plate having five different types of slots extending from a periphery of the plate toward a center of the plate along radially extending lines. The slots are arrow shaped, club shaped and key hole shaped. Arrow head slots which align with frame arms supporting the deflector plate are wider than the thickness of the frame arms. Club shaped and arrow shaped slots proximate the plane of the frame arms are asymmetrical with respect to radial lines extending from the center of the plate, while arrow shaped and key hole shaped slots distal to the plane of the frame arms are symmetrical with respect to radial lines extending from the center of the plate.

The invention relates to fire-extinguishing means, and more particularly to sprinklers for fire-extinguishing systems. A sprinkler comprises a body with an outlet opening which is closed off by a check valve, and a unit for controlling the state of the check valve. The sprinkler is provided with a fire sensor and an activation unit. The unit for controlling the state of the check valve is equipped with an electric trigger device. The input pins of the activation unit are connected to the outputs of the fire sensor. The output pins of the activation unit are connected to the outputs of the electric trigger. The technical result is an increase in the response speed of the sprinkler.

The invention relates to fire-extinguishing means, and more particularly to sprinklers for fire-extinguishing systems. A sprinkler comprises a body with an outlet opening which is closed off by a check valve, and a unit for controlling the state of the check valve. The sprinkler is provided with a fire sensor and an activation unit. The unit for controlling the state of the check valve is equipped with an electric trigger device. The input pins of the activation unit are connected to the outputs of the fire sensor. The output pins of the activation unit are connected to the outputs of the electric trigger. The technical result is an increase in the response speed of the sprinkler.

An apparatus may store at least one object including at least one top end and at least one bottom end. The apparatus may include a container configured to store the at least one object and a pouch containing a liquid. The pouch may be configured to substantially cover the at least one top end of the at least one object when stored inside the container. The pouch may be configured to contact the at least one top end of the at least one object and to open when contacted by contents expelled from the at least one object due to thermal runaway.

A dry sprinkler includes a flexible tube section that maintains a pressurized fluid, such as a liquid antifreeze solution, between a first end and a second end. A first seal prevents fluid from a supply line from entering the flexible tube section. The first seal is maintained in a sealed position by a pressure of the pressurized fluid. A sprinkler head is coupled to the second end of the flexible tube section, and includes a frame, an output orifice, a deflector, a second seal that seals the output orifice, and a thermally responsive element configured to maintain the second seal in a sealed position when the thermally responsive element is in a non-responsive state. A differential pressure controller maintains a ratio between the pressure of the pressurized fluid in the flexible tube section and a pressure of a supply fluid in the supply line to at least a certain ratio.

A dry sprinkler includes a flexible tube section that maintains a pressurized fluid, such as a liquid antifreeze solution, between a first end and a second end. A first seal prevents fluid from a supply line from entering the flexible tube section. The first seal is maintained in a sealed position by a pressure of the pressurized fluid. A sprinkler head is coupled to the second end of the flexible tube section, and includes a frame, an output orifice, a deflector, a second seal that seals the output orifice, and a thermally responsive element configured to maintain the second seal in a sealed position when the thermally responsive element is in a non-responsive state. A differential pressure controller maintains a ratio between the pressure of the pressurized fluid in the flexible tube section and a pressure of a supply fluid in the supply line to at least a certain ratio.

Closure for sprinklers and nozzles with heat activation for use in fire fighting, comprising a nozzle body (1) and an outlet channel (11) which is kept tightly closed by means of a cover (5). The cover (5) is detachably connected to the nozzle body (1) and detaches in case of fire. At least one of the fastenings between the cover (5) and the nozzle body (1) is a releasable arrangement (6) and at least one other is a connection (7). The heat-sensitive element is integrated in the releasable arrangement (6) or acts thereon so that the releasable arrangement (6) is detached when the heat-sensitive element is released. The forces on the cover (5) are distributed between the detachable assembly (6) and the joint (7) so that the detachable assembly (6) carries only a fraction of these forces.

Closure for sprinklers and nozzles with heat activation for use in fire fighting, comprising a nozzle body (1) and an outlet channel (11) which is kept tightly closed by means of a cover (5). The cover (5) is detachably connected to the nozzle body (1) and detaches in case of fire. At least one of the fastenings between the cover (5) and the nozzle body (1) is a releasable arrangement (6) and at least one other is a connection (7). The heat-sensitive element is integrated in the releasable arrangement (6) or acts thereon so that the releasable arrangement (6) is detached when the heat-sensitive element is released. The forces on the cover (5) are distributed between the detachable assembly (6) and the joint (7) so that the detachable assembly (6) carries only a fraction of these forces.