ES2791151T3 - Fluid dispensing apparatus - Google Patents

Abstract

Apparatus for dispensing fluid to a desired location comprising; a delivery device (1, 100, 1000, 2000) comprising: a first fluid communication path (27, 200, 300, 1020, 2005) and additional fluid communication path (35, 320, 1030, 2080) ; at least one first fluid outlet port (15, 310) and at least one additional fluid outlet port (21, 150, 330, 1050) that at least partially surrounds the first fluid outlet port wherein the first fluid outlet path fluid communication is for connecting each first fluid outlet port to a first fluid source and the additional fluid communication path is for connecting each additional fluid outlet port to an additional fluid source; a first control member (11, 33) for selectively connecting the first fluid source to said first fluid outlet port; and an additional control member (13, 25, 37, 160) for selectively connecting the additional fluid source to said additional fluid outlet port; wherein the first fluid outlet port is configured to dispense fluid in a first dispensing mode and wherein the additional fluid outlet port is configured to dispense fluid in a further dispensing mode; characterized in that the delivery device can selectively provide a spray or jet pattern alone or a mist pattern alone, or both a spray or jet pattern and a mist pattern simultaneously in which a mist pattern creeps through surrounding spray or jet pattern to enhance mist delivery.

Description

DESCRIPTION

Fluid dispensing apparatus

Technical Field:

The present invention relates to an apparatus and a method for dispensing fluid. In particular, but not exclusively, the apparatus is configured to provide a plurality of optional dispensing modes including, for example, a dual mode for dispensing a jet or stream of fluid (e.g., water) and a mist of fluid simultaneously . Certain embodiments of the present invention relate to a portable shunt in conjunction with a fixed nozzle, eg, mounted on a vehicle, for use in fire fighting. Methods for dispensing fluids, eg, water, are also included in the present invention, including, for example, methods for dispensing fluids in a fire fighting situation.

Background of the invention

For fire fighting, portable or mounted devices, such as nozzles or shunts, are typically connected to a source of fluid (eg, a water source or the like), and the device is used to direct the fluid discharged from the source. The device is normally provided with an on / off mechanism to control the discharge of fluid from the nozzle or bypass.

US2,389,642A (Schellin) describes an example of a prior art hose nozzle for a fire hose, for producing a direct stream and spraying either alone or in combination.

Conventionally, fire nozzles or shunts can be used to dispense a stream of fluid. These shunts generally generate relatively large droplets in an annular O-shaped stream. The pattern of the fluid dispensed can vary between a broad spray pattern and a concentrated stream.

Fog-only shunts are conventionally known. Fog can be generated in several ways. One of these techniques is to use high- or ultra-high-pressure fluid sources to force the fluid (eg, water) through small holes to atomize the spray. Other methods involve the use of paired interference currents to generate fog.

Fog is recognized as a more efficient fire fighting means compared to relatively larger droplets from a stream dispensed by conventional shunts, as the larger surface-to-volume ratio of smaller fog particles allows the fog to absorb more energy from fire. More of the water is converted to steam and therefore less water is required for the same effect on fire. As a result, the size of the shunt or nozzle and the flow can therefore be reduced.

Prior art mist only systems have several disadvantages associated with their use. In cases where very small holes are used, they can be prone to blockage. Furthermore, the launch (i.e. the distance over which the mist is propelled in order to suppress the fire) is limited compared to launching larger droplets distributed in a jet or spray pattern and thus the firefighter You have to approach the fire with a portable device to direct the water onto the fire or fixed systems, for example vehicle mounted systems may have a limited range. Both situations can be dangerous and life threatening. As a result, there is a reluctance among firefighters to use fog-generating shunts in certain circumstances, despite their potential improved firefighting efficiency compared to jet or spray shunts.

It is an object of the present invention to mitigate at least partially the problems mentioned above. Certain embodiments of the present invention aim to provide an apparatus that is configured to dispense a fluid mist that is capable of enhancing delivery.

Certain embodiments of the present invention aim to provide apparatus that is configured to be switchable between a plurality of dispensing modes as desired by a user.

Certain embodiments of the present invention aim to provide a multimodal portable or fixed position fire suppression system with at least three modes of operation that can be efficiently operated by a firefighter, either directly or remotely.

Summary of certain modalities of the invention

In a first aspect of the present invention, there is provided an apparatus for dispensing fluid at a desired location comprising;

a delivery device comprising:

a first fluid communication path and a further fluid communication path;

at least one first fluid outlet port and at least one additional fluid outlet port at least partially surrounding the first fluid outlet port wherein the first fluid communication path is to connect each first fluid outlet port to a first fluid source and the additional fluid communication path is to connect each additional fluid outlet port to an additional fluid source;

a first control member for selectively connecting the first fluid source to the first fluid outlet port; Y

an additional control member for selectively connecting the additional fluid source to the additional fluid outlet port; wherein the first fluid outlet port is configured to dispense fluid in a first dispensing mode and wherein the additional fluid outlet port is configured to dispense fluid in a further dispensing mode;

characterized in that the delivery device can selectively provide a single spray or jet pattern or a single mist pattern, or both a spray or jet pattern and a mist pattern simultaneously in which a mist pattern is drawn through a Surrounding spray or jet pattern to improve mist delivery.

In certain embodiments, the delivery device is a portable device.

Aptly, the delivery device is configured to be mounted on a vehicle. Alternatively, the delivery device is configured to lock.

In certain embodiments, the first fluid outlet port and the additional fluid outlet port are configured to eject liquid, eg, water, therefrom.

Aptly, the apparatus further comprises a first fluid source and a further fluid source. In one embodiment, the first fluid source and the additional fluid source comprise a common fluid source. In a further embodiment, the first fluid source is separate and distinct from the additional fluid source.

In certain embodiments, the first fluid source and the additional fluid source are configured to supply a fire fighting liquid to the respective first and additional fluid outlet ports. Rightly, the fire fighting fluid is water.

Suitably, the delivery device is operable to dispense fluid in a plurality of dispensing modes. In certain embodiments, the delivery device comprises a first actuation member operatively connected to the first control member to selectively connect or disconnect the first fluid source to the first fluid outlet port.

Aptly, the first fluid communication path comprises a first conduit and wherein the first control member comprises a first valve member provided in the first conduit.

In certain embodiments, the first valve member is movable between an open position and a closed position to selectively connect the first fluid source to the first fluid outlet port.

Aptly, the delivery device comprises a gun-like body. In certain embodiments, the first actuation member is a trigger member and the first valve member is movable between the open position and the closed position by actuation of the trigger member.

In a further embodiment, the delivery device comprises a generally elongated body. Suitably, the first valve member can be moved between the open position and the closed position by actuation of a first non-trigger actuation member, for example a handle member.

Aptly, the device comprises an additional actuating member operatively connected to the additional control member to selectively connect or disconnect the additional fluid source to the additional fluid outlet port.

In one embodiment, the additional fluid communication path comprises an additional conduit and wherein the additional control member comprises an additional valve member provided in the additional conduit.

Suitably, the additional valve member can be moved between an open position and a closed position to selectively connect the additional fluid source to the additional fluid outlet port. In certain embodiments, the additional valve member comprises a first portion comprising a first through hole and a further portion comprising a further through hole. In certain embodiments, the additional valve member is rotatable between an open position in which the first through hole and the additional through hole are axially aligned with a respective longitudinal axis of an annular portion of the additional passageway and a closed position in the that the first through hole and the further through hole are generally provided perpendicular to a respective longitudinal axis of an annular portion of the further conduit.

In certain embodiments, the additional valve member comprises a central portion having a smaller diameter than the first portion and the additional portion. Rightly, the central portion connects the first portion and the second portion. The narrow central portion can aptly be located in the first canal. Aptly, the narrow portion is configured to allow fluid to be dispensed through the first conduit when the additional valve member is in an open position or in a closed position relative to the additional conduit.

In certain embodiments, the first valve member comprises a central portion comprising a first central through hole, wherein the central portion is locatable in the first passage. In certain embodiments, the first valve member is rotatable between an open position in which the first central through hole is axially aligned with a longitudinal axis of the first conduit and a closed position in which the first central through hole is provided generally perpendicular to a longitudinal axis of the first conduit.

In certain embodiments, the first valve member comprises a first narrow portion and a further narrow portion, the first narrow portion and the further narrow portion are connected by the central portion. Aptly, the first narrow portion and the further narrow portion each have a diameter that is smaller than a diameter of the central portion.

Aptly, the first narrow portion and the further narrow portion are locatable in a respective annular portion of the further conduit. Aptly, the narrow portions are configured to allow fluid to be dispensed through the annular portions of the further conduit when the first valve member is in both an open position and a closed position relative to the first conduit.

Aptly, the delivery device comprises a body and the further actuating member is a handle member. In certain embodiments, the handle member is operable to selectively move the valve member between the open position and the closed position. In one embodiment, the body is a gun-like body.

Aptly, the handle member is pivotally connected to the additional valve member and rotation of the handle member about a pivot axis selectively connects the additional fluid source to the additional fluid outlet port.

In certain embodiments, the delivery device comprises a body portion and wherein the additional control member comprises a rotatable sleeve member mounted on the body portion.

Aptly, the first conduit and the additional conduit are arranged coaxially. Aptly, the first conduit and the additional conduit are provided in a generally parallel arrangement. In one embodiment, the first conduit and / or the additional conduit are provided with at least one fold.

In one embodiment, the additional fluid outlet port is annular and completely surrounds said first fluid outlet port.

Rightly, the external fog pattern can provide a protective barrier between a fire and a user of the device.

Aptly, the mist pattern comprises fluid droplets having a mean diameter of less than about 100 pm, eg, less than 65 pm, eg, less than 45 pm. Rightly, the fog pattern droplets have a mean diameter of less than about 1 pm.

In one embodiment, the device comprises a body portion that accommodates at least a portion of the first fluid communication path and at least a portion of the additional fluid communication path. Aptly, the device further comprises a gripping member that extends from the body portion. In one embodiment, the handle member extends from the body portion.

Aptly, the device further comprises a pattern sleeve rotatably coupled to the body portion, and wherein the first dispensing mode may comprise a plurality of patterns, the fluid pattern being established by the rotational position of the pattern sleeve with respect to to the body.

In one embodiment, the additional control member comprises a control sleeve rotatably coupled to the body portion. Rightly, the control sleeve and the pattern sleeve are the same.

Aptly, the device further comprises a flow control element.

In certain embodiments, the device further comprises at least one filter element. Aptly, the filter element prevents blocking of one or more orifices of the first fluid outlet port. Rightly, the device comprises in addition a filter element positioned in an inlet region of the first fluid communication path. In certain embodiments, the filter element comprises a mesh comprising a plurality of pores, each of which has a diameter that is less than the diameter of one or more holes provided by the first fluid outlet port. Aptly, the filter element acts to prevent material of a size that could clog the holes in the first fluid outlet port from moving into the first fluid outlet port. Suitably, the filter element can be expelled from trapped material by a fluid flow in the second fluid communication path adjacent to it.

Thus, certain embodiments provide a way to dislodge material, eg particulate debris, from one or both fluid communication paths that may otherwise block the path thereby preventing, eg, water from flowing out of the device. Therefore, certain modalities can provide a device that is less likely to malfunction in potentially dangerous fire fighting situations.

In certain embodiments, the additional fluid outlet port is a second fluid outlet port and wherein the device comprises a third fluid outlet port that at least partially surrounds the second fluid outlet port.

In certain embodiments, the additional fluid communication path is a second fluid communication path and the additional fluid source is a third fluid source and wherein the device further comprises a third fluid communication path that is to connect the third fluid communication path to the third fluid source. The third fluid source may be separate from the first and second fluid sources or it may be a common fluid source.

In certain embodiments, the additional dispensing mode is a second dispensing mode and the third fluid outlet port is configured to provide a third dispensing mode. Aptly, the third dispensing mode provides a pattern selected from a mist pattern, a spray pattern, or a jet pattern.

Aptly, the device is a fire shunt or fire nozzle. Aptly, the device is for dispensing one or more fire fighting fluids. Rightly, the firefighting fluid is water.

In another aspect of the present invention, there is provided a method of fighting a fire comprising the steps of:

selectively dispense fluid from a delivery device to a desired location where a fire is located through a selected one of at least three possible modes of dispensing, comprising:

supplying fluid mist only through at least one central fluid outlet port of the delivery device; supplying fluid, through at least one annular fluid outlet port, in a single jet or spray, wherein the at least one annular fluid outlet port at least partially surrounds said central fluid outlet port; and simultaneously delivering fluid mist through said central fluid outlet port and fluid jet or fluid spray through said annular fluid outlet port.

Rightly, the method further comprises:

selecting said a mode of operation by selectively actuating one or both of a first control member and a further control member of the delivery device.

Rightly, the sprayer is a frustoconical sprayer. Aptly, the fluid supplied through the at least one annular fluid outlet port is adjustable between the jet and the spray. Rightly, the jet is a solid stream of fluid. Rightly, the fluid is water.

Aptly, the delivery device is the delivery device as described in the present description. Aptly, the central fluid outlet port is a first fluid outlet port as described in the present disclosure. Aptly, the annular fluid outlet port is a further fluid outlet port as described in the present disclosure.

Certain embodiments of the present invention provide a device, for example a bypass with only two manually operated selector actuators, which can provide a spray or jet pattern alone or a mist pattern alone or a spray pattern or jet and a pattern. simultaneously in which a mist pattern is drawn through a surrounding spray or jet pattern to enhance the launch and effect of the mist.

Certain embodiments of the present invention provide a device, for example a water lance or turret, that is mounted on a vehicle or deployed from the ground.

In certain embodiments, the device is configured to provide a single fluid dispensing mode. For example, a user may wish to dispense a fluid in a mist-only mode or a jet-only mode. Therefore, the device of certain embodiments described in the present description provides the advantage that it can be use a single device to dispense fluid in multiple dispensing patterns. The same device can be used to dispense fluid in a different mode when, for example, the situation changes. For example, in a firefighting situation, a fog may be appropriate to start with, but environmental conditions may change, for example, there may be an increase in wind speed that would make the fog less effective and thus Therefore, a jet dispensing mode becomes more appropriate. The user can operate the device control members of certain modes to change from one dispensing mode to another without having to switch to a different device or change fluid sources.

In another aspect of the present invention, there is provided an apparatus for delivering a fluid or powder to a desired location, comprising:

a fluid supply device comprising at least a first fluid outlet port and at least one additional fluid outlet port;

a first fluid supply conduit providing a central hole for communicating a first fluid from a first fluid source to the first fluid outlet port; Y

an additional fluid supply conduit, coaxial with the first fluid supply conduit for at least a portion of a length of the first fluid supply conduit, defining an annular passageway between the first fluid supply conduit and a further one for communicating additional fluid to the additional fluid outlet port.

Rightly, the fluid is a gas.

Aptly, the apparatus comprises a hose, connectable to the fluid supply device, comprising a first hose conduit and a further hose conduit each having a substantially cylindrical shape when fluid communicates along a length of the tube. hose.

In one embodiment, the first fluid supply conduit is integrally formed with a hose conduit. In one embodiment, the additional fluid supply conduit is integrally formed with an additional hose conduit, wherein the first hose conduit is provided within the additional hose conduit. Therefore, in some embodiments, the first fluid source and the additional fluid source are arranged coaxially.

Aptly, the first hose conduit and the additional hose conduit are flexible and collapsible.

Aptly, the first conduit and the additional hose conduit are made of reinforced rubber or reinforced plastic material. Aptly, the hose comprises an outer layer made of a metal, for example steel or aluminum.

In certain embodiments, the apparatus comprises:

at least one connection member of the supply device at a connection end of the fluid supply device; Y

at least one hose connector member at one end of the hose for connecting a hose to the delivery device; where

A first hose passage and a further hose passage are locatable in fluid communication with a respective one of the central hole and the annular passage of the fluid supply device when the hose is connected to the supply device.

Certain embodiments of the invention provide apparatus that is capable of delivering one or more, eg, two fluids, to a target location. A first fluid may be dispensed through the first fluid outlet port and an additional fluid may be dispensed through the additional fluid outlet port. The fluids can be different or the same. The first fluid and the second fluid can be dispensed essentially simultaneously or they can be dispensed sequentially.

Certain embodiments of the present invention provide an apparatus that is for dispensing at least two fire fighting fluids to a desired location. In one embodiment, the first fluid or the additional fluid is water. The water aptly comprises one or more additives. Illustrative additives include, for example, a surfactant, a gelling agent, a foam composition, and / or an abrasive material.

In one embodiment, the fluid can be a gas such as, for example, carbon dioxide. Rightly, gas is air. In one embodiment, the apparatus is for delivering a powder to a desired location.

Certain embodiments of the present invention provide a multi-mode fluid dispensing system for fully or at least partially extinguishing the fire at a desired location. Certain embodiments of the present invention can provide a portable fluid delivery device (eg, a bypass) that can provide any of at least three different and distinct modes of operation through a convenient selection system for use. The delivery device is aptly similar to a pistol.

The coaxial arrangement of the apparatus in certain embodiments allows a single hose or other fluid source to be used to dispense two or more fluids from one device. Therefore, the use of two or more hoses, which they can be difficult to handle and heavy for a user to maneuver and handle. This can be particularly important in potentially dangerous situations, such as firefighting situations where firefighters must be able to move quickly in response to changes in their environment and the fire they are trying to extinguish. Rightly, the fluid is water.

In a further aspect of the present invention, a vehicle is provided comprising an apparatus as described in the present description. Rightly, the vehicle is a fire fighting vehicle or fire truck. The vehicle is rightly a marine vehicle, for example a ship.

Additional details of certain embodiments of the present invention are provided below.

Brief description of the figures

The embodiments of the present invention will be described hereinafter, by way of example only, with reference to the accompanying drawings in which:

Figure 1 illustrates a portion of a device in accordance with certain embodiments of the present invention;

Figure 2 illustrates an outlet region of a device according to certain embodiments of the present invention in a first dispensing mode;

Figure 3 illustrates an outlet region of a device in accordance with certain embodiments of the present invention in a further dispensing mode;

Figure 4 illustrates an exit region of a device in accordance with certain embodiments of the present invention in yet another dispensing mode;

Figure 5 is a representation of a device in accordance with certain embodiments of the present invention; Figure 6 is a representation of a portion of a device according to certain embodiments of the present invention in a first dispensing mode;

Figure 7 is a representation of a portion of the device according to certain embodiments of the present invention in a further dispensing mode;

Figure 8 is a representation of a portion of the device according to certain embodiments of the present invention in a further dispensing mode;

Figure 9 illustrates one embodiment of certain embodiments of the present invention;

Figure 10 illustrates a coaxial arrangement of certain aspects of the present invention;

Figure 11 illustrates coaxial conduits in accordance with certain embodiments of the present invention;

Figure 12A illustrates a device in accordance with a certain embodiment of the present invention;

Figure 12B illustrates a cross-sectional view of the device illustrated in Figure 12A;

Figure 13A illustrates the device illustrated in Figure 12A in a further dispensing mode;

Figure 13B illustrates a cross-sectional view of a device in the dispensing mode shown in Figure 13A;

Figure 14A illustrates a device in a further dispensing mode;

Figure 14B illustrates a cross-sectional view of a device in the dispensing mode shown in Figure 14A;

Figure 15A illustrates a device in a further dispensing mode;

Figure 15B illustrates a cross-sectional view of a device in the dispensing mode shown;

Figure 16 illustrates a control element in a closed position in accordance with certain embodiments of the present invention;

Figure 17 illustrates a control element in an open position in accordance with certain embodiments of the present invention;

Figure 18A schematically illustrates a device in accordance with embodiments of the present invention;

Figure 18B is a cross-sectional view of the device illustrated in Figure 18A;

Figure 19A schematically illustrates a device according to certain embodiments of the present invention in a further dispensing mode;

Figure 19B is a cross-sectional view of the device illustrated in Figure 19A;

Figure 20A schematically illustrates a device according to certain embodiments of the present invention in a further dispensing mode;

Figure 20B is a cross-sectional view of the device illustrated in Figure 20A;

Figure 21A schematically illustrates a device according to certain embodiments of the present invention in a further dispensing mode;

Figure 21B is a cross-sectional view of the device illustrated in Figure 21A; Y

Figure 22 illustrates a flow control element in accordance with certain embodiments of the present invention. Detailed description of certain embodiments of the invention

Certain embodiments of the present invention relate to apparatus for dispensing fluids. In certain embodiments, the apparatus is for dispensing firefighting fluid. Rightly, the firefighting fluid is water. Additionally or alternatively, the fluid source may be a source of a combination of a foam and water composition. Therefore, in some embodiments, the apparatus is for dispensing a mixture of water and foam. Fire fighting foam compositions are well known in the art and can be, for example, protein-based compositions or synthetic foam compositions. Alternatively, the device can be for dispensing a water additive composition.

Aptly, the apparatus comprises a device as described in the present description. The device can be a portable device such as, for example, a shunt or a mouthpiece. In certain embodiments, a delivery device is a shunt, a turret, a water lance, or a nozzle. In certain embodiments, the device is a shunt. The term "bypass" is well known in the art.

In certain embodiments, the device is a device of mounted or fixed structure such as, for example, a turret or a water lance. The device can be placed on a surface and operate automatically without the need for a firefighter. The device can be mounted in a vehicle, for example on a ship and operated from there. In use, the apparatus further comprises a fluid source connected to the device. The fluid source can be a water source, for example.

Suitably, the device can be actuated using a variety of different actuation methods, including manual, electrical, hydraulic or radio frequency control or the like.

In certain embodiments, the fluid is delivered in a dispensing pattern. Aptly, as used herein, the terms "dispensing pattern" and "pattern" are used to describe the pattern generated by the fluid being dispensed.

In certain embodiments, the dispensing pattern can be, for example, a jet pattern. A jet pattern is formed when relatively large droplets or a solid stream of fluid are dispensed from the device in a confined manner. The droplets dispensed in a jet pattern may have a mean diameter greater than about 100 µm, eg, about 15 ° µm, 200 µm, 300 µm, 400 µm, or more or be in a solid stream.

As used herein, the term "mean diameter" is the mean diameter of at least about 90% of the drops that are dispensed in a particular dispensing mode.

A spray pattern is formed when relatively large fluid droplets are dispensed from the device. The droplets dispensed in a spray pattern may have a mean diameter greater than about 100 µm, eg, about 150 µm, 200 µm, 300 µm, 400 µm, or more.

A mist pattern forms when small drops of fluid are dispensed from the device. The term "small" can be relative to the size of the droplets generated in a jet or spray pattern. Furthermore, rightly, the Size of fluid droplets distributed in a mist pattern can be determined according to the type of device. For example, a portable device can be configured to dispense mist in which the fluid droplets have a mean diameter of less than about 100 µm, eg, 90 µm, 80 µm, 70 µm, or 60 µm. In one embodiment, the mist droplets have a mean diameter of less than about 1 µm to about 60 µm.

Mist droplets dispensed by a device larger than a portable shunt, for example a water lance or turret, may have a larger mean diameter. For example, in certain embodiments, the mist droplets have a mean diameter greater than about 100 but less than about 1000 jim.

In certain embodiments, the device is configured to simultaneously dispense fluid in both a mist pattern and a spray pattern. Aptly, the fluid is dispensed as a mist from the first outlet port which is provided within a further annular outlet port. Aptly, a spray or jet is dispensed from the additional annular outlet port which is provided around the outlet perimeter of the first outlet port. As such, when mist and spray or jet are dispensed at the same time, the spray or jet acts to trap the mist, increasing the distance the mist can travel. Thus, certain embodiments of the present invention may allow users, ie firefighters, to be positioned further away from the fire than prior art fog-only shunts would allow.

The water source can supply water to the device at a pressure ranging from about 2 bar to about 1000 bar or more. In certain embodiments, for example, when the device is used to dispense fluid in a mist-only mode, the fluid source can provide the fluid at a high or ultra-high pressure. Rightly, the high pressure can be considered to be between 20 and 50 bar. Rightly, very high pressure is between about 50 and 100 bar and ultra high pressure can be greater than 100 bar.

In one embodiment, the device is adapted to receive fluid, for example water, at two or more different pressures. Rightly, the water source supplies water at two or more pressures. In certain embodiments, the water source is a plurality of water sources.

Returning to the embodiments illustrated in the Figures, in Figure 5 a device is shown, for example a shunt 1.

The device 1 comprises a body portion 3 that includes an outlet region 5. The device also includes an inlet region 7 that connects the device to a source of fluid (not shown).

The device can be configured to connect in its inlet region to one or more than one fluid source. In certain embodiments, the device can be connected to two fluid sources simultaneously, such as a high pressure or ultra high pressure fluid source, as well as a low pressure source. The connection can be a coaxial connection as described below.

The device also includes a gripping member 9 for a user to hold the device. The grip member extends downwardly from the body portion 3. The grip member may be a pistol-type grip, as shown in Figure 5. Other types of grips or handles are envisioned and encompassed by certain embodiments herein. invention.

The device also includes a handle member 11. The handle member 11 extends generally upward from the body portion. The handle member is pivotally mounted on an external surface of the body portion, and therefore can be rotated by a user. In certain embodiments, the handle member is a bullet arm control member. The handle member can be used to selectively control the flow of a fluid from a fluid source to the outlet region. More details of the control members are provided below.

The device may also include an additional control element, for example a control member 13. The control member 13 as shown in Figure 5 is a firing control member. The firing control member is connected to one or more additional control members housed in the body portion, as described in more detail below.

The exit region of the device can be seen in detail in Figure 1, for example. The outlet region comprises a first fluid outlet port 15 having an outer surface 16. The first fluid outlet port 15 has a circular cross section and is generally solid. The first fluid outlet port is in fluid communication with a first conduit as shown in Figure 6, for example. The first fluid outlet port comprises an outer surface 16 that includes a plurality of small holes 19 for dispensing fluid therefrom. The holes can be provided in a paired orientation, as shown in Figure 1, for example. The pairs of orifices can provide an interference pattern to the fluid being dispensed from the first fluid outlet port, thereby forming a fluid mist. Alternatively, the first fluid outlet port may comprise one or more holes sized to atomize fluid that is dispensed therefrom.

In a further alternative embodiment (not shown), the first fluid outlet port may comprise a central hole rather than having an essentially solid surface as described above. In this embodiment, a mist tip element can be secured in place above the outer surface of the first fluid outlet port. The first fluid outlet port may comprise a screw thread corresponding to a screw thread provided in the nebulization tip member to removably secure the nebulization tip member to the first fluid outlet port. Alternatively, the spray tip element may be secured to the first fluid outlet port by a bayonet fitting.

The spray tip element may comprise one or more ports for dispensing fluid from the first conduit, the ports being sized and shaped to dispense the fluid in a mist.

The outlet region further comprises a second fluid outlet port 21. The second (or additional) fluid outlet port 21 is annular and surrounds the first fluid outlet port, as shown in Figure 1 and Figure 5, for example. Therefore, the second fluid outlet port has an annular cross-sectional area. The second fluid outlet port is provided around an outer periphery of the first fluid outlet port. The second fluid outlet port may be separated from the first fluid outlet port by a solid annular region 23.

The exit region may also include a collar 25. The collar 25 provides an outer longitudinal surface of the exit region. The collar is rotatable and, when rotated, slides a sleeve longitudinally downstream from a distal end of the outlet region. By sliding the sleeve when supplying a fluid to the device, the dispensing mode of the second outlet port is switched between a jet and a spray. In certain embodiments of the invention, for example, as shown in Figure 9, the rotation of the collar can also control the flow of fluid to the second outlet port and thus can prevent or allow fluid to be dispensed from the second outlet port, depending on the direction of rotation. In this embodiment, the collar and cuff together form an additional or second control member as described in the present disclosure, the cuff can rotate between an "off" position where no fluid is dispensed and an "on" position at the one that is dispensed fluid.

The second exit port may further comprise an annular structure comprising a plurality of spaced tooth elements 140 as shown in Figure 9, for example. The annular structure can be positioned around the outer perimeter of the first exit port and extend outwardly from the distal surface of the exit region. The tooth elements can rotate during use to break up fluid droplets exiting the second fluid outlet port. This acts to reduce the droplet size of the fluid exiting the second fluid outlet port and can also result in the fluid being dispensed at a wider angle of divergence.

The teeth can be beveled or angled so that the water exerts uneven pressure to rotate the annular structure. Each tooth element is secured to or is an integral part of the annular structure that is located in a recessed ring groove region located within the distal surface of the fluid outlet region.

Alternatively, the annular structure can be fixed and not rotate.

The device provides one or more fluid communication paths. Aptly, the device comprises a first conduit 27 providing a hole, as shown in Figure 6. Figures 6 to 8 illustrate the control members and fluid flow control of various embodiments of the present invention and are not available scale.

The first conduit 27 has a first end 29 that is proximal and connectable to a fluid source. The first conduit 27 may comprise a filter element (not shown) at its first end (inlet). The first conduit 27 terminates at an opposite end in the outlet region and is in fluid communication with the first fluid outlet port. The first conduit connects the first fluid outlet port to a source of fluid such that fluid is supplied to the first fluid outlet port and dispensed. The embodiment shown in Figure 6 illustrates a first conduit comprising at least one fold therein. The first conduit may comprise a bend or bend therein to accommodate a control member provided in the second conduit as described below. The first conduit may be housed entirely within the body portion or, alternatively, at least a portion of the first conduit may be housed outside of the body portion.

Aptly, the first conduit comprises one or more control members for selectively controlling the flow of fluid from the fluid source to the first fluid outlet port. As shown in Figure 6, an illustrative control member comprises a valve member 33. The valve member 33 may be, for example, a ball valve. Suitably, the valve member 33 can be moved between an open position and a closed position by the operation of the trigger member 13 (shown in Figure 5). Therefore, when the trigger member is in a first position, the valve is in a first position, for example an open position. When the trigger member is in a second position, that is, when it has been actuated and moved toward (or away from) the grip member, the movement of the trigger member moves the valve to a second position, eg, a closed position. Furthermore, the movement of the trigger member between the first position and the second position can act to control the flow rate of the fluid. When the valve member is in a closed position, fluid is prevented from flowing to the first fluid outlet port, and therefore is not dispensed.

The valve element 33 may be, for example, a ball valve, as shown in Figure 6. The ball valve aptly comprises a ball with a hole 39 extending across its diameter. When the valve is in an open position, hole 39 is generally axially aligned with the longitudinal axis of conduit 27 to allow fluid to pass along the conduit.

The valve is moved to a closed position, for example, by actuation of the trigger member and the ball is rotated so that the hole is no longer aligned with the longitudinal axis of the conduit. Rather, the hole is generally perpendicular to the longitudinal axis of the conduit and therefore fluid is not allowed to flow along the conduit.

The speed of flow through the ball valve can be reduced, but the flow is not stopped completely by partially rotating the ball valve. Aptly, the valve element is formed of any suitable material, such as stainless steel.

It will be appreciated that, in an alternative arrangement, the valve member 33 is actuated by movement of an alternative control member rather than the trigger, eg, a handle member as described in the present disclosure.

As shown in Figure 6, the device further comprises a second conduit 35 comprising a control element for controlling the flow of a fluid in the second conduit. The second conduit may be housed with the body portion of the device. The ducts are aptly constructed of aluminum alloy, bronze, or a composite material.

As illustrated in Figure 6, the control element comprises a second valve element 37. The second valve element may be a ball valve comprising a through hole 41 as described above with respect to the first valve element. Thus, the rotation of the ball valve 37 controls the flow of fluid to the second fluid outlet port.

The second control element may further comprise an element operable to move the second valve element between an open position and a closed position. In one embodiment, the movement of the second valve element between an open position and a closed position is controlled by the movement of the handle member 11. In alternative embodiments, the second valve element can be actuated by an alternative control member, by example, a trigger member 13. In this embodiment, the first valve member may be actuated through a control member other than the trigger member.

In Figure 6, the first valve element provided in the first conduit is in a closed position and the second valve element is in an open position. Therefore, fluid can only flow from one fluid source along the second conduit to the second fluid outlet port. In this embodiment, the device dispenses fluid in a jet or spray pattern. The dispensing pattern that is formed as a result of the arrangement of Figure 6 is shown in Figure 2. Rotation of the collar alters the dispensing pattern between a jet and a spray pattern as required.

Figure 7 illustrates an embodiment in which the first valve element is in an open position thus allowing flow of a fluid along the first conduit from a fluid source to the first fluid outlet port. The second valve element is in a closed position, and therefore fluid cannot flow to the second outlet port.

Therefore, in the dispensing mode illustrated in Figure 7, fluid is dispensed only from the first fluid outlet port. The first fluid outlet port is configured to dispense fluid in a mist pattern and therefore only mist is dispensed. The dispensing pattern formed from this arrangement is shown in Figure 3.

Figure 8 illustrates an embodiment in which both the first and second valve elements are in an open position and, as such, fluid flows along the first and second fluid conduits to respective fluid outlet ports. . In this embodiment, the device simultaneously dispenses fluid in two different dispensing patterns, one of which is a mist pattern. This arrangement provides the advantage that the mist, once dispensed, is limited by the jet or spray and can therefore travel a greater distance compared to the mist dispensed without an external "O-spray" of a jet. or fluid spray. Dispensing patterns formed from this arrangement are shown in Figure 4.

Figure 9 illustrates an alternative embodiment in which the device 100 comprises a body portion 110 in which the first valve element (not shown) is actuated by a handle member 120. The handle member is pivotally mounted on the portion of the body. The handle member actuates a valve element in the first conduit to control the flow of fluid from a fluid source (not shown) to the first fluid outlet port 140. The first fluid outlet port is configured to dispense fluid into form of mist, as described above.

Control of fluid from the fluid source to a second fluid outlet port 150 is controlled by a control member comprising a rotatable collar 160. Rotation of the collar changes the dispensing pattern of the fluid that is dispensed from the second port. fluid outlet between a jet and a spray pattern, as well as controls the flow between "on" and "off".

Device 1, 100 may further comprise a flow control element. The flow control element can be, for example, an adjustable collar 180 that is circumferentially mounted on the body portion.

In certain embodiments, the device may further comprise a pressure reducing or balancing valve that may be provided in the first and / or the further fluid communication path (not shown). Pressure reducing valves are known in the art.

Figures 6 to 8 illustrate an embodiment in which the first conduit and the additional conduit are provided in generally parallel and spaced relationship along at least a portion of their respective lengths. In an alternative embodiment, the first and second conduits may be arranged coaxially. A coaxial arrangement of the first conduit and additional conduits is described below with reference to Figure 10 and Figure 11.

Therefore, a fluid supply device is provided comprising at least a first fluid outlet port and at least one additional fluid outlet port. The first fluid supply conduit provides a central hole for communicating a first fluid from a first fluid source to said first fluid outlet port. The device also comprises an additional fluid supply conduit, coaxial with the first fluid supply conduit for at least a portion of a length of the first fluid supply conduit, defining an annular passage between the first fluid supply conduit. and the other to communicate additional fluid to said additional fluid outlet port. In an alternative embodiment, one or more of the fluids can be replaced by a powder. In an alternative embodiment, one or more of the fluids can be replaced by a gas.

This arrangement is shown in Figure 10. A first fluid supply conduit 200 is positioned inwardly from a second fluid supply conduit 210. The first fluid supply conduit provides a hole for a first fluid 220 to flow. A second fluid 230 flows between an outer surface of the first fluid supply conduit 200 and an inner surface of the second fluid supply conduit.

It will be appreciated that the coaxial arrangement shown in Figure 10 may be applicable to devices other than the apparatus for supplying a fluid described in the present description.

Figure 11 illustrates the arrangement depicted in Figure 10 in a device for dispensing fluids as described in the present description. A first conduit 300 provides a hole through which fluid can flow. As illustrated, the first conduit is in fluid communication with a first fluid outlet port 310.

A second conduit 320 is in fluid communication with a second fluid outlet port 330 that is annular and dispenses fluid in an "O-shaped" jet or stream. First conduit 300 and second conduit 320 are integrally formed with a hose conduit (not shown) along which one or more fluids can travel. The hose conduit may comprise a corresponding coaxial arrangement such that only a single hose conduit is required to provide two fluid paths, and can therefore be used to provide two fluids simultaneously. In the embodiment shown in Figure 11, the first and second conduits are in a coaxial relationship along only a portion of their length. The first conduit comprises a bend or bend to accommodate the valve provided in the second conduit. In alternative embodiments, the first and second conduits are in a coaxial arrangement along their respective lengths.

A further embodiment is shown in Figures 12 to 15. These figures illustrate a device 1000 in accordance with an alternative embodiment. Device 1000 comprises a housing 1005 and a pistol grip handle 1010 as described above. The device also comprises a first conduit 1020 which is provided in a coaxial arrangement with a second conduit 1030. The second conduit at least partially surrounds the first conduit. The first conduit connects a first fluid supply (not shown) to a first outlet port 1040. The second conduit connects an additional fluid supply (not shown), which may be the same as the first fluid supply or different, to a second fluid outlet portion 1050.

The device may comprise a first handle 1060 that is rotatably connected to the housing about an axis that is at right angles to the flow path of the device. The first handle is connected to a control element 1070 in accordance with certain embodiments of the invention. Control element 1070 is located within the first conduit and the second conduit and is provided to control, for example, allow, reduce, or prevent fluid flow along one or both of the first and second conduits.

The control element is shown in more detail in Figures 16, 17 and 22. The control element 1070 comprises a first cylindrical element 1080 comprising a through hole 1090 which can be located in a first portion of the second conduit. The control element also includes a second cylindrical element 1110 locatable in a portion of the second conduit that is provided on an opposite side of the first conduit. The second cylindrical element comprises a through hole 1120 locatable in the second conduit.

The control element further includes a third cylindrical portion 1130 that can be located in the first conduit. The third cylindrical portion 1130 comprises a narrow waist portion 1140.

The first cylindrical portion, the second cylindrical portion, and the third cylindrical portion may be integrally formed.

The control element also comprises a pair of lugs 1150, 1160 which are located in corresponding recesses 1170, 1180 in the housing. The lugs are connected to the first handle so that when the handle is actuated, i.e. rotates, the flow control element also rotates.

Figure 16 shows the control element in a first position in which the first and second cylindrical elements are positioned so that their respective through holes are perpendicular to the long axis of the second conduit. As a result, the side walls of the cylindrical elements are located within the lumen of the second conduit to block fluid flow along the second conduit.

The third cylindrical element 1140 comprises a narrow waist portion that is smaller than the lumen area of the first conduit and therefore allows fluid to flow past the control element in the first conduit. Therefore, in this position, the control member prevents fluid flow along the second conduit, but allows fluid flow along the first conduit. As a result, fluid is expelled only through the first (internal) outlet port. The fluid can be emitted as a jet, spray or mist, depending on the control of the droplet size of fluid provided (as described above). This single dispensing mode is shown schematically in Figure 14B. Figure 14A illustrates the positioning of the handle.

Rotation of the handle around its axis rotates the control element from the first position, as shown in Figure 16, to a second dispensing position as shown in Figure 12B and Figure 17. Therefore, the first and the second cylindrical member are rotated to position their respective through holes in alignment with the long axis of the second conduit portions. In this position, the fluid is allowed to flow along the second conduit to the second outlet port. Fluid can be expelled from the second outlet port as a jet, spray, or mist, for example. In this dispensing mode, fluid is also allowed to flow along the first conduit because the narrow waist portion has a smaller diameter than the diameter of the first conduit. Therefore, the dispensing mode shown in Figure 12B is a dual dispensing mode.

As shown in Figures 12 to 15, a second handle 1190 is provided that controls fluid flow in the first conduit. In the illustrated embodiments, the second handle is provided downstream of the first handle, although it is envisaged that in other embodiments the second handle may be upstream of the first handle.

The second handle is rotatably connected to the housing and to a second control element 1200. The second control element comprises a first cylindrical element 1210 positioned in a first portion of the second conduit and a second cylindrical element 1220 positioned in a second portion of the second conduit. Each of the first cylindrical element and the second cylindrical element comprises a narrow waist portion having a diameter that is less than the diameter of the respective portions of the second conduit. As a result, fluid is allowed to flow along the second conduit and past the narrow waist portion to the second outlet port. The second control element further comprises a third cylindrical portion 1230 which comprises side walls defining a through hole.

Figures 13A and 13B illustrate a dispensing mode in which the second handle is rotated to a position that rotates the second control element and causes the through hole of the third cylindrical element to position perpendicular to the long axis of the first conduit. In this position, the third cylindrical element prevents fluid from passing through the first conduit and therefore no or very little fluid is expelled from the first fluid outlet port. The first and second cylindrical elements allow fluid to pass due to the respective tapered waist portions. Whether fluid passes through the second fluid outlet port will depend on whether the first control element is positioned to allow fluid to pass, as described above.

Therefore, the embodiment shown in Figures 12 to 15 provides a plurality of dispensing modes depending on the actuation of the first and / or second handles. The device may be in a dual dispensing mode in which fluid is expelled from the first and second fluid outlet ports. Alternatively, the device may be in a single dispensing mode in which fluid is allowed to pass to either the first fluid outlet port or the second fluid outlet port. A further dispensing mode is provided in which fluid is prevented from passing into the first and second fluid outlet ports.

A device 2000 according to certain embodiments is shown in Figures 18 to 21 in which the control of fluid flow along the first conduit 2005 is controlled by a trigger element 2010. The trigger element 2010 is mounted on the housing and is integrally connected or formed with a valve element provided in the first conduit 2005. Movement of the trigger, for example, in a linear direction toward or away from the gun grip, moves the valve member 2020 within the lumen of the first conduit. The valve element 2020 comprises an elongated portion 2040 and a ball-like portion 2050. The lumen of the first conduit may comprise an internal surface having a restricted region 2060. The lumen of the first conduit has a smaller diameter in the restricted region than in the adjacent regions of the canal.

When the trigger is actuated, that is, it moves toward the gripping portion, the valve member 2020 and thus the ball portion 2050 moves away from the restricted region, as shown in Figures 19B and 21B. Aptly, movement of the ball portion away from the restricted region allows fluid to pass through the restricted region and out of the device through the first fluid outlet port. Therefore, Figure 19B shows the device in a dispensing mode in which the valve member 2020 moves away from the restricted region thus allowing delivery of fluid through the first conduit.

Actuation of the trigger in an opposite direction, for example, as a result of a release of pressure on the trigger by a user, causes the valve member to move into the restricted region. The valve element abuts the restricted region, which restricts the flow of fluid beyond the restricted region of the first conduit, and thus the fluid does not flow into the first fluid outlet port to be expelled . Trigger actuated mechanisms are known in the art and other arrangements are envisaged.

As shown in Figures 18 to 21, the control system comprising the trigger and the valve element can be provided in combination with a handle system as described above to control the flow of fluid in a second conduit. Thus, a handle 2070 can be operated to restrict or allow fluid flow along a second conduit 2080 while the trigger element can be operated to restrict or allow fluid flow along a first conduit. Therefore, the device of Figures 18 to 21 can offer a plurality of dispensing modes, which a user can choose depending on environmental conditions.

Throughout the description and claims of this description, the words "comprise" and "contain" and variations thereof mean "including, but not limited to," and are not intended to exclude (and are not excluded) other portions, additives, components, whole or stages. Throughout the description and the claims of this description, the singular encompasses the plural unless the context requires otherwise. In particular, where the indefinite article is used, the description should be understood as contemplating plurality, as well as singularity, unless the context requires otherwise.

The elements, integers, features, or groups described in conjunction with a particular aspect, embodiment, or example of the invention are to be understood to be applicable to any other aspect, embodiment, or example described in the present description, unless they are incompatible therewith. All the features described in this description (including any claims, abstract and attached figures), and / or all the steps of any method or process so described, can be combined in any combination, except combinations where at least some of such features and / or stages are mutually exclusive. The invention is not limited to the details of any of the above embodiments. The invention extends to any novel feature, or to any novel combination of the features described in this description (including any of the claims, abstract and attached figures), or to any novel stage, or novel combination of the stages of any method or process described. .

The reader's attention is directed to all texts and documents that are presented concurrently with or prior to this description together with this application and that are open to public inspection with this description, and the contents of all these texts and documents are incorporated herein by reference.

Claims (15)

i. Apparatus for dispensing fluid to a desired location comprising; a delivery device (1, 100, 1000, 2000) comprising: a first fluid communication path (27, 200, 300, 1020, 2005) and additional fluid communication path (35, 320, 1030, 2080); at least one first fluid outlet port (15, 310) and at least one additional fluid outlet port (21, 150, 330, 1050) that at least partially surrounds the first fluid outlet port wherein the first fluid outlet path fluid communication is for connecting each first fluid outlet port to a first fluid source and the additional fluid communication path is for connecting each additional fluid outlet port to an additional fluid source; a first control member (11, 33) for selectively connecting the first fluid source to said first fluid outlet port; Y an additional control member (13, 25, 37, 160) for selectively connecting the additional fluid source to said additional fluid outlet port; wherein the first fluid outlet port is configured to dispense fluid in a first dispensing mode and wherein the additional fluid outlet port is configured to dispense fluid in a further dispensing mode; characterized in that the delivery device can selectively provide a spray or jet pattern alone or a mist pattern alone, or both a spray or jet pattern and a mist pattern simultaneously in which a mist pattern creeps through surrounding spray or jet pattern to enhance mist delivery. Apparatus according to claim 1, wherein the delivery device is a portable device; or where the delivery device is configured to be mounted on a vehicle or attached to a structure. 3. The apparatus according to any preceding claim further comprising: a first fluid source and a further fluid source; and wherein the first fluid source and the additional fluid source comprise a common source, or wherein the first fluid source is separate and distinct from the additional fluid source. Apparatus according to any preceding claim, wherein the delivery device is operable to dispense fluid in a plurality of dispensing modes; wherein optionally the delivery device comprises a body portion (3, 110) and wherein the further control member comprises a rotatable sleeve member mounted on the body portion. Apparatus according to any preceding claim, wherein the delivery device comprises a first actuation member (13, 2010) operatively connected to the first control member to selectively connect or disconnect the first source of fluid to the first outlet port of fluid; wherein optionally, the first conduit and the additional conduit are provided in a generally parallel arrangement. Apparatus according to any preceding claim, wherein the first fluid communication path comprises a first conduit (27, 200, 300, 1020, 2005) and wherein the first control member comprises a first valve member (33 , 2020) provided in the first conduit; wherein optionally, the first conduit and the additional conduit are coaxially arranged. Apparatus according to claim 5 or claim 6, wherein the first valve member is movable between an open position and a closed position to selectively connect the first fluid source to the first fluid outlet port; wherein optionally, the delivery device comprises a gun-like body and the first actuating member is a trigger member (13) and wherein the first valve member is movable between the open position and the closed position by actuation of the trigger member. Apparatus according to any preceding claim, wherein the device comprises an additional actuating member (13, 11) operatively connected to the additional control member to selectively connect or disconnect the additional fluid source to the additional fluid outlet port; and / or wherein the additional fluid communication path comprises an additional conduit (35, 320, 1030, 2080) and wherein the additional control member comprises an additional valve member (37) provided in the additional conduit. 9. Apparatus according to claim 8, wherein the member further valve movable between an open position and a closed position for selectively connecting the source of additional fluid to the output port of additional fluid. Apparatus according to claim 9, wherein the delivery device comprises a gun-like body and the further actuating member is a handle member (11), wherein the handle member is operable to selectively move the valve member between the open position and the closed position; wherein, optionally, the handle member is pivotally connected to the additional valve member and rotation of the handle member about a pivot axis selectively connects the additional fluid source to the additional fluid outlet port. Apparatus according to any preceding claim, wherein said additional fluid outlet port is annular and completely surrounds said first fluid outlet port. 12. Apparatus according to claim 1, wherein the mist pattern comprises dispensing fluid droplets having a mean diameter of between less than about 1 pm to about 100 pm. Apparatus according to any preceding claim, wherein the device comprises a body portion (3, 110) accommodating at least a portion of the first fluid communication path and at least a portion of the fluid communication path. additional; and / or, wherein the device further comprises a gripping member (9) extending from the body portion; and / or, wherein the device further comprises a pattern sleeve rotatably coupled to the body portion, and wherein the first dispensing mode may comprise a plurality of patterns, the fluid pattern being established by the rotational position of the sleeve. of pattern relative to the body and / or, wherein the apparatus is for dispensing a firefighting fluid and further wherein the device is a fire shunt or a fire nozzle. 14. A method of fighting a fire, characterized by the stages of: selectively dispensing fluid from a delivery device (1, 100, 1000, 2000) at a desired location where a fire is located through one of at least three possible dispensing modes, comprising: delivering fluid mist only through at least one central fluid outlet port (15, 310) of the delivery device; delivering fluid, through at least one annular fluid outlet port (21, 150, 330, 1050), in a single jet or spray, wherein the at least one annular fluid outlet port at least partially surrounds said port central fluid outlet; Y simultaneously delivering fluid mist through said central fluid outlet port and fluid jet or spray through said annular fluid outlet port. The method according to claim 14, further comprising: selecting said selected mode of operation by selectively actuating one or both of a first control member (11, 33) and a further control member (13, 25, 37, 160) of the delivery device; and / or where the spray is a frusto-conical spray; and / or wherein the method further comprises adjusting the fluid supplied through the at least one annular fluid outlet port between the jet and the spray; and / or wherein the method further comprises selecting said selected mode of operation by selectively activating one or both of a first control member (11, 33) and an additional control member (13, 25, 37, 160) of the control device. supply.