Tap assembly and waste grate

Abstract

A tap assembly 100 includes a tap body (112, Fig. 7) having a fluid communication channel 110 extending between an inlet 102 and an outlet 104, and a waste outlet or drain 120 for attachment to a sink or basin (302, Fig. 1 / 4) to allow wastewater to drain from the sink, the fluid communication channel extending through the waste outlet in use. A waste grate (200, Fig. 6) supports the fluid communication channel in use and may include a material that expands, or has increased friction, when wet to grip the tap body. The inlet 102 may extend out of the side wall (122, Fig. 4) of the waste channel 140 below the drain. The outlet may comprise a removable spout (114, Fig. 7) facilitating storage or transport. The system avoids the need to mount the tap in a surface on or adjacent a sink, particularly useful for low space installations such as boats, campervans or aeroplanes. An internal valve assembly may be manually or electronically remotely controlled to allow hot and cold inlets to flow into the fluid channel.

Description

FIELD OF THE INVENTION The present invention relates to a tap assembly and associated method of assembly. The invention also relates to a waste grate for use with such a tap assembly. BACKGROUND OF THE INVENTION Taps are commonplace, and can be found in homes and offices throughout the world. They are used to dispense hot and / or cold water into a receptacle such as a sink or bathtub. Taps comprise a tap body and commonly also a spout. Sometimes the spout may be integrally formed with the tap body as a single article. Typically, water is supplied through one or more inlet pipes that enter through the bottom of the tap body, and water is then dispensed through the spout. One or more handles are attached to a respective valve to control the flow of water through the tap. Some taps use a single handle to mix and control the flow of hot and cold water from the tap. The tap body is typically attached to a surface, so that the water inlet is hidden below the surface and so that the tap spout protrudes from the surface. The tap may be attached to a wall (such as in a bathroom), to a flat rear portion of a sink (such as in a hand basin), or to a worktop proximal to a sink (such as in a Belfast-style kitchen sink). Typically, the sink, or other water receptacle such as a bath, will include a waste outlet at a lowest point, that is operable to allow water to flow out of the sink / receptacle and out through a waste pipe. The waste outlet typically comprises a grate to trap larger items, such as spoons or jewelry, to prevent them from accidentally falling into the waste pipe. The waste outlet and pipe may be referred to as a drain outlet, or as portion of the drain pipe. Typically, the handle(s) to control the valve(s) are also positioned on the base of the tap below the spout, above where the tap body is fixed to the worktop surface, such that the handle(s) are visible and accessible above the surface. In some taps, the handle(s) to control water flow are mounted separately to the tap. For example, in expensive bathrooms, the control handles for a bath tap may be wall mounted, separately to a spout that extends from a wall or from a surface of a bathtub, and these handles control the flow of water from the spout. Commonly, taps are found in kitchens, bathrooms and throughout the home, and are also found in commercial or office environments, for example in kitchen areas of an office, or in a workshop. SUMMARY OF THE INVENTION The invention is defined by the claims. According to examples in accordance with an aspect of the invention, there is provided a tap assembly comprising a tap body comprising a fluid communication channel extending between an inlet and an outlet, the tap assembly also comprising a waste outlet for attachment to a sink to allow waste water to drain from the sink, wherein the fluid communication channel is adapted to extend through the waste outlet in use. The tap assembly of the subject invention allows a simpler installation than prior tap assemblies, since neither the sink, nor the countertop needs to be drilled or modified to secure the tap. The tap assembly can be provided pre-installed as a unit comprising a tap body and waste outlet integrated together, thereby simplifying installation, since installing the waste outlet results in the tap body also being installed. In other words, with such an integrated pre-configured unit, no additional step of attaching the tap to a surface is required. Furthermore, as an alternative the tap assembly can be provided pre-installed in a sink to be installed in or on a surface, such as a top surface of a bathroom cabinet or a kitchen worktop. Since the tap body is configured to extend through the waste outlet, the sink can be larger, since no flat portion of the sink is required for the attachment of the tap. Alternatively, in other installations, more counter-top space may be made available, by removing the need to attach the tap to the countertop, since it may be integrated with the waste outlet. This may be particularly beneficial in installations with a shallow depth of worktop, or in installations where worktop space is at a premium (such as in a campervan, motorhome, airplane or boat), or where countertops are commonly used for another purpose and an unobstructed countertop is therefore desirable. The tap assembly prevents damage to countertops, since water that would otherwise run down the spout, and sit on the countertop causing damage over time, can instead run out of the waste outlet. In an embodiment, the fluid communication channel is adapted to be supported by the waste outlet in an assembled configuration. This enables the fluid communication channel to be firmly supported with respect to the sink in which the waste outlet is installed. In an embodiment, the tap assembly is adapted to limit a relative motion between the waste outlet and the fluid communication channel in the assembled configuration. For example, when in an assembled configuration, i.e., in the installed position within a sink, the fluid communication channel may be supported by the waste outlet and / or a waste grate that sits between the waste outlet and the fluid communication channel. This support may serve to limit a lateral side to side motion or backwards-and-forward motion of the fluid communication channel with respect to the waste outlet, or may serve to limit an up-and-down vertical motion of the fluid communication channel with respect to the outlet. The tap body may be integrally formed with the waste outlet thus minimizing relative movement. In an embodiment, the tap body is adapted so that the inlet and outlet extend from opposite sides of the waste outlet. This enables a clean and simple installation wherein the tap body extends through the waste outlet and wherein the inlet is accessible on the underside of a sink, below the waste outlet, and the outlet is accessible for use on the top side of a sink, above the waste outlet. In an embodiment, the waste outlet comprises a waste channel, and the inlet extends through the waste channel. The waste channel may comprise a series of bends to take the waste water away through the plumbing system of the building in which the tap assembly is installed. By extending the inlet through the waste channel, the connection for the inlet may be provided at a neater, more convenient or more accessible location than at the waste outlet, and accordingly only one visible connection (that of the waste channel) is required on the underside of the waste outlet. For example, the inlet may extend through the waste channel at a point some distance away from where the waste outlet contacts the sink or water receptacle, at which position the inlet may then be accessible at a sidewall (or extending through a sidewall) of the waste channel. Accordingly, this allows for more convenient connection of a water inlet pipe to the inlet, and the connection point between the two may be made or readily inspected as required. In an embodiment, the inlet extends axially through a side wall of the waste channel. That is, the inlet extends through side wall of the waste outlet, at an angle of approximately 90 degrees to the direction of water flow in that portion of the waste outlet. As an example, the inlet may extend through the side wall of the waste outlet at an angle of approximately 90 degrees to a vertical portion of the fluid communication channel, or may extend through the side wall of the waste outlet at an angle of approximately 90 degrees to a vertical portion of the waste outlet. Such a configuration enables a simple and convenient position, at the waste outlet, to connect a water inlet pipe to the inlet of the tap body. For example, the inlet may extend towards a front, or side, of the waste outlet for particularly easy access, or towards a rear side for a particularly clean and neat install wherein the connection is not easily seen. In an embodiment, the waste channel is adapted to receive a water inlet pipe for providing water to the inlet. The waste channel may be specially adapted to provide the inlet at a sidewall of the waste channel, or to provide the inlet extending through a sidewall of the waste channel. The provided inlet may comprise a screw thread to allow easy connection of a water inlet pipe. In an embodiment, the tap assembly comprises a tap spout, and optionally the tap spout is adapted to be releasably attachable to the tap body. A tap body may typically be formed as a single piece, but in an embodiment a separate spout portion is provided. This spout portion may be attached to and removed from the tap body. This may make installation simpler, particularly where the tap spout has a bend (which could make it difficult to fit the tap assembly to a sink). The tap assembly may be sold as a kit in which the waste outlet and tap body are integrally formed, the kit also comprising a tap spout that can be connected to the tap body during installation. This kit, with an integrated tap body and outlet but a separate spout, may thus be relatively flat and easy to transport and store. The waste outlet may then be installed in a sink, after which the tap spout then installed into the tap body that is comprised within (and securely positioned with respect to) the waste outlet. Such a configuration also allows quick and simple removal of the tap spout for inspection or maintenance, or if the entire area of the sink is required, for example for soaking large items. A variety of interchangeable tap spouts may be provided with different characteristics. For example, a particularly long tap spout may be used where large (tall) items are being washed, and then replaced with a shorter spout when this feature is not required. A spout with a wide sprinkle head may be interchanged with a tap spout with a concentrated water flow as required by the user. Furthermore, the tap spout may be removed easily for cleaning or replacement if damaged. In a further embodiment, the tap spout is adapted to rotate relative to the tap body around a longitudinal axis. The longitudinal axis will typically extend substantially vertically when the tap body is installed. This feature provides simple and convenient operation since the tap spout can be moved within the sink area. In an embodiment, the tap assembly has a waste grate that is adapted to secure the tap body to the waste outlet in the assembled configuration. The waste grate may fit around the tap body (and / or tap spout if a spout is provided) and brace the tap body against an inner wall of the waste outlet. This provides a more rigid structure, and the waste outlet thus serves a further technical purpose beyond straining waste water and capture of items exceeding a size threshold. In an embodiment, the waste grate is adapted to engage with an outer portion of the tap body. For example, the waste grate may comprise threads that engage with co-operating threads on a portion of the tap body and / or tap spout. The waste grate may comprise ribs or protrusions that engage with co-operating ribs or protrusions on a portion of the tap body and / or tap spout. The waste grate may comprise splines that engage with co-operating splines on a portion of the tap body and / or tap spout. Accordingly, a firm and reliable connection may be made between the waste grate and the tap body and relative motion between the tap body and waste outlet may be minimized. The waste grate may comprise a non-marking coating or material to allow the tap body to be well supported. The waste grate may comprise material that exhibits higher friction or that expands when wet. Accordingly, a friction between the waste grate and tap body and / or tap spout may be relative low when the waste grate is dry such that the waste grate may be relatively easy to move over the tap body and / or tap spout when fitting, and yet when the waste grate gets wet, i.e., in use, it may then provide a relatively firmer grip on the tap body and / or spout thus providing greater support in use. In an embodiment, the waste grate comprises two or more separate portions. Accordingly, the waste grate may be easier to fit in position since the two or more portions may be introduced from different sides of the tap body and / or tap spout in the vicinity of the waste outlet, rather than having to slide the waste grate over the tap body and / or tap spout to position it between the tap body and / or spout and the waste outlet. The two or more portions may comprise magnetic parts or mechanical features such as groves and dovetails to allow them to securely fit together. In an embodiment, the waste grate is adapted to facilitate a rotation of the tap body relative to the waste outlet. For example, the waste grate may have a low friction coating which enables the tap body and / or tap spout to rotate relatively freely with respect to the waste grate whilst still providing lateral support to the tab body and / or tap spout to minimize lateral movement. The coating may be further selected so that friction is further reduced when wet, so that rotation is facilitated when the waste grate gets wet. Any suitable material that exhibits these properties may be used. According to another aspect of the invention, there is provided a waste grate for a waste outlet adapted to rigidly secure a tap body to a waste outlet. Such a waste grate comprises technical features not found in a conventional waste grate. In addition to its normal role as a strainer, the waste great provides an additional support function. Accordingly, in embodiments of the present invention, the waste grate is adapted to securely and snugly fit around a tap assembly to provide the necessary support. Since the waste grate is specially configured to brace the tap body to the waste outlet, the tap body thus is secured to the waste outlet, since it cannot easily be moved. Additional waste grates with different technical characteristics may be supplied with the tap assembly or such waste grates may be sold separately. According to another aspect of the invention, there is provided a sink assembly comprising a tap assembly as described herein. Optionally, components of the sink assembly may be provided readily assembled, for example the outlet may be provided pre-attached to the sink. Further, by providing the components in a kit form they can be assured to be compatible. The kit may further comprise a waste channel specially adapted to provide a connection to the inlet of the tap assembly. This may be provided at a side wall of the waste channel, or the inlet may extend through a side wall of the specially-adapted waste channel. According to another aspect of the invention, there is provided a method of assembling a tap assembly comprising a tap body and a waste outlet, comprising the steps of providing a tap body comprising a fluid communication channel extending between an inlet and an outlet, providing a waste outlet, positioning the fluid communication channel through the waste outlet, and supporting the fluid communication channel to extend through the waste outlet in an assembled configuration. Such a method results in a tap assembly with the many benefits listed herein. Such a method is quicker and simpler than existing installation methods since the fluid communication channel may be provided integrally formed with the waste outlet, and thus installation requires installation of the outlet to the sink without a separate step of securing the fluid communication channel in a position proximal to the sink. Where the fluid communication channel and waste outlet are not integrally formed, the two may be attached together during assembly. For example, the inlet end of the tap assembly may be fed through the waste outlet and secured thereto. These and other aspects of the invention will be apparent from and elucidated with reference to the embodiment(s) described hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS For a better understanding of the invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example only, to the accompanying drawings, in which: Figure 1 shows a perspective view of a tap assembly according to an embodiment; Figure 2 shows a perspective view of a tap assembly according to an embodiment; Figure 3 shows a perspective view of a portion of a tap assembly according to an embodiment; Figure 4 shows a cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 5 shows a cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 6 shows a cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 7 shows a cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 8 shows an exploded view of a of a tap assembly according to an embodiment; Figure 9 shows a cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 10 shows a cross-sectional view of two embodiments (A, B) of tap assemblies that are each configured with different waste plumbing; Figure 11 shows a cross-section view of the two embodiments of sink assemblies (A, B) comprising the tap assemblies of Figure 10; Figure 12 shows a perspective view of portions of six embodiments (A, B, C, D, E, F) of tap assemblies that are configured with different waste plumbing; Figure 13 shows a perspective view of three embodiments (A, B, C) of sink assemblies; Figure 14 shows a cross-sectional view of portions of five embodiments (A, B, C, D, E) of tap assemblies; Figure 15 shows a cross-sectional view of portions of a further five embodiments (A, B, C, D, E) of tap assemblies; Figure 16 shows a cross-sectional view of portions of a further five embodiments (A, B, C, D, E) of tap assemblies; Figure 17 shows a cross-sectional view of portions of a further five embodiments (A, B, C, D, E) of tap assemblies; Figure 18 shows a cross-sectional view of portions of a further six embodiments (A, B, C, D, E, F) of tap assemblies; Figure 19 shows a cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 20 shows a transparent perspective view of a portion of a tap assembly according to an embodiment; Figure 21 shows a perspective cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 22 shows a perspective cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 23 shows a perspective cross-sectional view of a portion of a tap assembly according to an embodiment; Figure 24 shows a perspective cross-sectional view of a waste grate according to an embodiment; Figure 25 shows a plan view of four embodiments (A, B, C. D) of waste grates; Figure 26 shows a perspective view of six embodiments (A, B, C, D, E, F) of sink assemblies; Figure 27 shows a series of perspective views (A, B, C) of a sink assembly according to an embodiment; Figure 28 shows a series of perspective views (A, B, C) of a sink assembly according to an embodiment; Figure 29 shows a series of perspective views (A, B, C, D) of a sink assembly according to an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS The invention will be described with reference to the Figures. It should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the apparatus, systems and methods, are intended for purposes of illustration only and are not intended to limit the scope of the invention. These and other features, aspects, and advantages of the apparatus, systems and methods of the present invention will become better understood from the following description, appended claims, and accompanying drawings. It should be understood that the Figures are merely schematic and are not drawn to scale. It should also be understood that the same reference numerals are used throughout the Figures to indicate the same or similar parts. The invention provides a tap assembly comprising a waste outlet for connection to a sink, and a tap body with a fluid communication channel extending between an inlet and an outlet. The fluid communication channel is configured to pass through the waste outlet in use. Therefore, the invention provides a simpler and easier method of installation compared to the prior art where the tap assembly needs to be separately mounted, (typically on a portion of worktop that is adjacent to the sink). Typically, in the known sink assembly, the mechanical and fluid connections to the tap are highly inaccessible since they are behind the sink, making installation, inspection and repair difficult, especially with the waste plumbing of the sink in the way. The invention provides one or more fluid inlet to the tap assembly that is accessible at the waste outlet, making installation, inspection and repair simpler than the prior art. In embodiments, the tap assembly also comprises a waste grate that is designed to fit around the fluid communication channel to rigidly secure a portion of the fluid communication channel to the waste outlet. Thus, the waste grate may support the fluid communication channel by bracing it against the waste outlet. In embodiments, the tap assembly comprises more than one inlet to allow the tap assembly to supply both hot and cold water or a mix of hot and cold water. In embodiments, the inlet is provided flush with a side wall of the waste outlet. In other embodiments, the inlet extends through the side wall of the waste outlet. In embodiments, the tap assembly comprises spout portion that is separable from the tap body. This allows for simpler installation. Additionally, the spout may be configured to freely rotate with respect to the tap body. In embodiments, a sink assembly is provided which includes the tap assembly. In further embodiments, the sink assembly is configured with a lid and the tap assembly can be folded down within the volume of the sink assembly, or alternatively the sink spout can be removed placed within the sink or attached to the lid. Thus, the lid of the sink assembly can be closed, providing a clean worktop with no protrusions. Such embodiments are ideally suited to places where there is minimal space and where worktop space is at a premium, such as in confined spaces such as campervans, boats or airplanes. Figure 1 shows a perspective view of a tap assembly according to an embodiment. The tap assembly 100 comprises a waste outlet 120 configured to be attached to a sink 302 to allow waste water to be drained from the sink 302, and also comprises a tap body 112 having a fluid communication channel 110 extending between an inlet 102 and outlet 104. The fluid communication channel 110 is rigidly attached to the waste outlet 120 and passes through the waste outlet 120 in use. Accordingly, in use, the clean water delivered by the tap body 112 passes through a portion of the waste outlet 120 through which waste water flows out of the sink 302. Figure 2 shows a perspective view of a tap assembly according to an embodiment of a tap assembly. The inlet 102 and outlet 104 of the tab body are connected by the fluid communication channel 110. The fluid communication channel 110 passes through, and is rigidly attached, to the waste outlet 120. The waste outlet 120 is connected to waste channel 140 which carries waste water away through the plumbing system where the tap assembly 100 is installed. The waste outlet 120 may be mechanically fitted to a sink 302, may be glued using an appropriate glue or sealant, or may comprise parts that cooperate to affix the waste outlet 120 to the sink 302 (for example, parts with co-operating screw threads that allow the two parts to be tightened together on opposite sides of the waste outlet of a sink 302). The waste outlet 120 may connect to waste channel 140 via conventional push fit fittings, compression fittings or by solvent welding. The waste outlet 120 may comprise a lower portion that is plastic to allow for easy connection to conventional plumbing. The inlet 102 may extend through a side wall 122 of the waste outlet 120 in the form of a short section of pipe or as a spigot, so that a water inlet pipe may be connected to supply water to the tap assembly. Alternatively, the inlet 102 may be flush with the side wall 122 of the waste outlet 120. The inlet 102 may comprise a screw thread to allow a flexible inlet pipe (of the known type) to be connected to the inlet 102. For example, the inlet 102 may comprise a female screw thread to allow a “flexi-tail” (flexible water inlet pipe) to be connected. The tap assembly 100 may be configured to supply both hot and cold water. In an embodiment, the tap assembly 100 has two inlets 102, and also an internal valve assembly within the volume enclosed by the waste outlet 120, and this valve is connected to and controlled by one or more handle or lever (not shown), or by a remote electronic signal (not shown). The valve controls the flow of water through a separate hot inlet 102 and cold inlet 102 through the fluid communication channel 110, thus controlling flow and water temperature. Such valves are known in the art so are not described in detail, but will be familiar to the skilled person. In another embodiment that is configured to supply both hot and cold water, a single inlet 102 extends through the side wall 122 of the waste outlet 120, after which it connects to a valve (not shown) which is fed by a cold inlet pipe (not shown) and a hot inlet pipe (not shown). The valve controls the flow of water through a hot inlet pipe and a cold inlet pipe through the fluid communication channel 110, thus controlling flow and water and water temperature. The valve is connected to and controlled by one or more handle or lever (not shown), or by a remote electronic signal (not shown). Figure 3 shows a perspective view of a portion of a tap assembly according to an embodiment. The inlet 102 passes through a side wall 122 of the waste outlet 120. The inlet 102 is integrally formed with the waste outlet 120 thereby ensuring that the fluid communication channel 110 is rigidly supported by the waste outlet 120. For example, the waste outlet 120 may be made of metal and the inlet 102 may be cast integrally with the waste outlet 120. Alternatively, the inlet 102 may be welded, brazed, soldered, glued or otherwise mechanically fixed to the waste outlet 120. The waste outlet 120 is configured to be rigidly attached to a sink 302 thereby ensuring that the fluid communication channel 110 is rigidly fixed in position with respect to the sink 302 once installed. The tap body may be configured to rotate around rotation axis A as shown by rotational direction arrows R. For example, the tap body may comprise a top portion that can rotate relative to a bottom portion. The fluid communication channel extends the length of the tap body. The tap body may be provided as a single component comprising the inlet and outlet or may comprise a separate tap body and tap spout as described later. Figure 4 shows a cross-sectional view of a portion of a tap assembly according to an embodiment. The tap body 112 comprising a fluid communication channel 110 and an inlet 102 is pre-formed with a waste outlet 120, such that the inlet 102 passes through the side wall 122 of the waste outlet 120. Accordingly, the fluid communication channel 110 is rigidly fixed relative to the waste outlet 120. The waste outlet 120 comprises fixing means 124a in the form of holes that allow mechanical fixings to be used to secure to the underside of a sink 302. Figure 5 shows a cross-sectional view of a portion of a tap assembly according to an embodiment. The tap body 112 comprising a fluid communication channel 110 and an inlet 102 is pre-formed with a waste outlet 120, such that the inlet 102 passes through the side wall 122 of the waste outlet 120. Accordingly, the fluid communication channel 110 is rigidly fixed relative to the waste outlet 120. The waste outlet 120 comprises two parts, a first part that sits underneath the sink 302 and a second part that screws together from the top side of the sink 302 to rigidly fasten the waste outlet 120 to the sink 302. A fixing means 124b in the form of cooperating threads in the first and second parts allows the waste outlet 120 to be secured to the sink 302. Figure 6 shows a cross-sectional view of a portion of a tap assembly according to an embodiment. The waste outlet 120 is secured to the bottom of the sink 302 as per the embodiment shown in Fig. 4, and other features are common with that embodiment. The embodiment further comprises a waste grate 200 that assists to support the tap body 112 relative to the waste outlet 120. The waste grate 200 is designed to slide over the tap body 112 toward the waste outlet 120. Thus, the inner diameter of the waste grate 200 is designed to be very slightly larger than the outer diameter of the fluid communication channel 110 of the tap body 112, and the outer diameter of the waste grate 200 is designed to be very slightly smaller than the inner diameter of the waste outlet 120. Thus, when installed and positioned between the tap body 112 and the waste outlet 120, the waste grate 200 rigidly supports the fluid communication channel 110. Further an optional plug 206 may be provided, which is designed to fit around the tap body 112 to provide a good seal between the tap body 112 and the waste outlet 120. In a lowered position, where it contacts the waste outlet 120, the plug 206 provides a water-tight seal that prevents water from flowing through the waste outlet 120. In a raised position, where it does not contact the waste outlet 120 the plug 206 allows water to drain through the waste outlet 120. Thus, the plug 206 may be slid down and up the tap body 112 to respectively allow and prevent water from flowing through the waste outlet 120. The plug may be made of silicone, rubber or any other suitable material. The plug may be provided in two separable parts that can be joined around the tap body for more convenient operation. For example, the plug may comprise two silicone portions designed to fit on opposite sides of the tap body, each comprising magnet so that when they are brough together around the tap body 112 they firmly connect around the tap body 112 providing a secure and water tight seal when seated above the waste outlet 120. Figure 7 shows a cross-sectional view of a portion of a tap assembly according to an embodiment. The embodiment comprises all the features of the embodiment shown in Fig. 6 but further comprises attachment means 116 that allows tap spout 114 to be releasably attached to a tap body 112. Optionally, the attachment means 116 also allows the tap spout 114 to be rotated relative to the tap body 112. The attachment means 116 may comprise a swivel joint connector or universal joint connector. The attachment means may further comprise a plurality of O-rings or seals to allow a water-tight connection, and may further comprise a horizontal channel around its outer edge to receive a locking means such as a grub screw, to prevent the tap body 112 and tap spout 114 from separating due to the force of the water pressure. The tap spout 114 may comprise a through-hole (not shown) through which the securing means may pass to engage with the channel, thereby allowing the tap spout 114 to be secured to the tap body 112 whilst allowing rotational movement. In embodiments, a portion of the fluid communication channel 110 may comprise a feature to allows the waste grate 200 to be received. For example, the outside of a portion of the fluid communication channel 110 may comprise fillets or ribs that are designed to co-operate with protrusions on the waste grate 200. Figure 8 shows an exploded view of a of a tap assembly according to an embodiment. The tap spout 114 is separable from the tap body 112, using the means as discussed above in relation to Figure 7. Thus, during installation the waste outlet 120 may be secured to a sink 302, then a waste channel 140 and one or more water inlet pipe is fitted below and the tap spout 114 attached from above to complete the install. Alternatively, the waste outlet 120 may be supplied pre-fitted to a sink 302, after which a waste channel 140 and one or more water inlet pipe is fitted below and the tap spout 114 attached from above to complete the install. Accordingly, fitting the tap assembly 100 is much quicker and simpler than with existing tap assemblies and waste outlets which are separate and require separate fitting. Furthermore, since the connection for one or more water inlet pipe is provided directly at the waste outlet 120 itself, this connection is far simpler than existing methods which require reaching up behind a sink and behind the waste plumbing to reach and manipulate the water inlet connections to the tap and the mechanical connections that attach the sink to a worktop. Such existing fluid and mechanical connections are often not visible, requiring the installer or maintenance person to work by touch alone, in very awkward positions, which further complicates installation, inspection, repair maintenance and removal. According to the invention, the water inlet is more readily accessible for installation, inspection, repair, maintenance and removal. The tap spout may be configured to rotate around rotation axis A as shown by rotational direction arrows R. The components may be provided in kit form as shown in Fig. 8, or may be provided pre-assembled together. Figure 9 shows a cross-sectional view of a portion of a tap assembly according to an embodiment. Attachment means 116 allows the spout to be releasably attached to the tap body. A first attachment part 116A is integrally fitted into the bottom of the spout and a second attachment part 116B is integrally fitted into the top of the tap body. Attachments parts engage with each other to provide a secure and water-tight seal. The attachment parts 116A,B may comprise seals or O-rings and may be tapered and / or have ribs or protrusions to securely engage with each other. Figure 10 shows a cross-sectional view of two embodiments (A, B) of tap assemblies that are each configured with different waste plumbing. In the first embodiment, A, the waste channel 140 extends below the waste outlet 120 before turning 90 degrees to extend horizontally. In the second embodiment, B, the waste channel 140 extends below the waste outlet 120 into a trap or U-bend before turning 90 degrees to extend horizontally. Figure 11 shows a cross-section view of the two embodiments of sink assemblies (A, B) comprising the tap assemblies of Figure 10. The first sink assembly 300, A, comprises the same tap assembly 100 as embodiment A of Figure. 10, but comprises a sink. The second sink assembly 300, B, comprises the same tap assembly 100 as embodiment A of Figure. 10, but comprises a sink. Both sinks 302 are shown mounted on a stand or countertop. Figure 12 shows a perspective view of portions of six embodiments (A, B, C, D, E, F) of tap assemblies that are configured with a different waste channel 140, i.e., with different waste plumbing. All embodiments shown in Fig. 12 have a U-bend trap. Embodiments B and C each comprise one or more spigot 142 for connecting a washing machine waste. Embodiments D and F comprise a compact trap 144, which may negate the need for a U-bend in the pipework. Embodiments E and F comprise dual tap assemblies and thus dual waste outlets 120, through each of which a tap body 112 extends. The features of the embodiments shown in Fig. 12 may be combined in any combination except where they are incompatible. Figure 13 shows a perspective view of three embodiments (A, B, C) of sink assemblies 300. In embodiment of the invention, as depicted as examples by A, b and C, a control means in the form of a handle 118 is provided in a different location. In embodiment A, the control means in the form of a handle 118 is provided mounted on a side of the fluid communication channel 110. In embodiment B, the control means in the form of a handle 118 is mounted on an upstand at the rear of the countertop. In embodiment C, the control means in the form of a handle 118 is mounted on the surface of the countertop in the vicinity of the sink 302. In each case the handle allows the flow of water through the tap assembly to be controlled. Optionally, two handles or a mixer handle may be provided to control a hot and cold flow simultaneously, as described earlier. Figure 14 shows a cross-sectional view of portions of five embodiments (A, B, C, D, E) of tap assemblies. In embodiments of the invention, such as depicted by embodiments A and D, the inlet 102 extends through a side wall 122 of the waste outlet 120. The inlet 102 is angled, with respect to the portion of the fluid communication channel 110 that extends through the waste outlet 120, at an angle of approximately 90 degrees. In embodiments of the invention, such as depicted by embodiments B, C, and E, the inlet 102 is flush with the side wall 122 of the waste outlet 120. In embodiments of the invention, such as depicted by embodiments D and E, a waste grate 200 may be provided. In embodiments of the invention, such as depicted by embodiments B, C and E, the inlet may be threaded and comprise threads 119 to allow a threaded water inlet pipe such as a flexi tail to be connected. In embodiments of the invention, such as depicted by embodiments C and E, the tap body 112 may comprise externally threaded portion comprising threads 119 to allow a waste grate 200 with a cooperating thread to be securely screwed into position around the tap body 112. In embodiments of the invention, such as depicted by embodiments C and E, the waste outlet 120 may comprise externally or internally threaded portion comprising threads 119 to allow a waste channel 140 with cooperating threads to be screwed to the waste outlet 120. The features of the embodiments shown in Fig. 14 may be combined in any combination except where they are incompatible. Figure 15 shows a cross-sectional view of portions of a further five embodiments (A, B, C, D, E) of tap assemblies. The embodiments shown in Fig. 15 are substantially identical to the corresponding embodiments in Fig. 14 except that the inlet 102 is angled, with respect to the portion of the fluid communication channel 110 that extends through the waste outlet waste outlet 120, at an angle of approximately 45 degrees. Within reason, any other sensible relative angle may be used, such as 40, 50, 60 or 70 degrees. The use of an angled inlet may make it easier to make the connection from a water inlet pipe to the inlet 102. The water inlet connection is typically made from underneath the tap assembly, thus angling the inlet 102 downwards may facilitate installation. The features of the embodiments shown in Fig. 15 may be combined in any combination except where they are incompatible. Figure 16 shows a cross-sectional view of portions of a further five embodiments (A, B, C, D, E) of tap assemblies. The embodiments shown in Fig. 16 are substantially identical to the corresponding embodiments in Fig. 14 except that the waste outlet 120 comprises two threaded parts that, during installation, are introduced from opposite sides of the sink 302 and screwed together to securely clamp the waste outlet 120 to the sink 302. The size of the two parts and the associated screw threads may be adapted to accommodate any thickness of sink 302. A waste grate 200 may be integrally formed into the threaded part that is introduced from the top, such that as the top and bottom portions are screwed together to secure the waste outlet 120 to the sink 302, the installation of the waste outlet 120 also provides and installs a waste grate 200 that supports the fluid communication channel 110. The features of the embodiments shown in Fig. 16 may be combined in any combination except where they are incompatible. Figure 17 shows a cross-sectional view of portions of a further five embodiments (A, B, C, D, E) of tap assemblies. The embodiments shown in Fig. 17 are substantially identical to the corresponding embodiments in Fig. 15 except that the waste outlet 120 comprises two threaded parts that, during installation, are introduced from opposite sides of the sink 302 and screwed together to securely clamp the waste outlet 120 to the sink 302. The size of the two parts and the associated screw threads may be adapted to accommodate any thickness of sink 302. A waste grate 200 may be integrally formed into the threaded part that is introduced from the top, such that as the top and bottom portions are screwed together to secure the waste outlet 120 to the sink 302, the installation of the waste outlet 120 also provides and installs a waste grate 200 that supports the fluid communication channel 110. The features of the embodiments shown in Fig. 17 may be combined in any combination except where they are incompatible. Figure 18 shows a cross-sectional view of portions of a further six embodiments (A, B, C, D, E, F) of tap assemblies. The embodiments depicted in Fig. 18 show a variety of ways in which the inlet 102 may be arrange with respect to the waste outlet 120 and waste channel 140. It should be understood that these perspective views provided relate to the same perspective as shown in Figure 8, in which the spout is orientated towards an operator to the front of a sink 302 and the waste channel 140 is orientated in the opposite direction, towards a back wall behind the sink 302. According to the invention, and as exemplified in embodiments A, B, C, D and E, the inlet 102 may extend through the side wall 122 of the waste outlet 120 in any orientation. For example, as shown in embodiments A and B the inlet 102 may extend directly out through the side wall 122 of the waste outlet 120, i.e., at an angle of 90 degrees with respect to the portion of the fluid communication channel 110 that extends through the waste outlet 120. The inlet 102 may extend in a forward (embodiment A) or rearward (embodiment B) direction considering the installation of the sink, i.e., in which forward means towards the front of the sink 302 and rearward means towards the rear of the sink 302. The inlet 102 may extend sideways (i.e., towards a side of the sink 302) through the waste outlet 120 as shown in embodiments C and D. The inlet 102 may be angled upwards (as shown in embodiment E) or downwards (as shown in embodiment D) with respect to an angle perpendicular to the portion of the fluid communication channel 110 that extends through the waste outlet 120. For a particularly clean installation with a minimum of fluid connections visible underneath the sink 302, the inlet 102 may extend inside the waste channel 140 until such a position where a water inlet pipe may be connected to the inlet 102, or until such a position as it may then be provided flush with or extending through a side wall 122 of the waste channel 140. Accordingly, the connection to the water inlet pipe may be provided at a convenient or aesthetically pleasing (i.e., less visible) location. In embodiments, the tap assembly 100 may be provided with a cooperating waste channel 140 through which the inlet 102 extends internally for some or all of the length of the waste channel 140. Figure 19 shows a cross-sectional view of a portion of a tap assembly according to an embodiment. This is an enlarged view of embodiment E of Fig. 17 and the features described in relation to that embodiment therefore also apply to this Figure. Figure 20 shows a transparent perspective view of a portion of a tap assembly according to an embodiment for fitting to a sink. The sink is not shown. The assembly comprises the waste outlet 120 and fluid communication channel 110 as one single, integrated item. The waste outlet 120 comprises a plurality of holes around its top surface, allowing it to be secured to a sink from the underside. Spaced above this top surface is the waste grate 200, in a position where its outer edges would contact the inner periphery of a sink outlet in use. Once installed, the waste grate 200 will brace the fluid communication channel 110 against the sink, thus providing structural support for the tap body 112. In the embodiment shown in Figure 20, the waste outlet waste outlet 120 comprises a single part that is attached to the underside of a sink. This is in contrast to the two part waste outlet waste outlet 120 with integrated waste grate 200, as shown in Figure 19, that is secured by introducing the two parts from opposite sides of the sink and screwing them together to secure the waste outlet 120 to the sink. Figures 21 and 22 show further embodiments comprising the waste outlet 120 and the fluid communication channel 110 integrated into a single piece to aid and simplify installation. Figure 21 shows a perspective cross-sectional view of a portion of a tap assembly according to an embodiment. The waste grate 200 comprises a plurality of spokes extending from a central aperture. These spokes contact the inner surface of the waste outlet 120 when installed, thereby bracing the fluid communication channel 110 against the waste outlet 120. The description in relation to Figure 20 applies equally to Figure 21. Figure 22 shows a perspective cross-sectional view of a portion of a tap assembly according to an embodiment. The embodiment comprises the features shown and described in relation to Figures 20 and 21. The embodiment in Figure 22 thus still includes the feature of the fluid communication channel 110 and waste outlet 120 being integrated into a single piece. However, in the embodiment shown in Figure 22, the tap assembly comprises a separate tap spout 114 (not shown) that is attachable to the tap body 112. The tap body 112 comprises attachment means 116 for enabling the tap spout 114 to be attached during installation. The attachment means 116 may comprise a connecting portion that is sized to fit snuggly inside bottom of the tap spout 114, and may comprise O-rings around the periphery to prevent water leakage. Thereby, by placing the tap spout 114 on the tap body 112 it may be secured thereto whilst allowing rotational movement of the tap spout 114 relative to the tap body 112. The tap spout 114 may comprise a hole near the bottom, through which a fixing means such as a grub screw may pass to allow the tap spout 114 to be secured to the tap body 112 in use. As an example, the fixing means may, be configured to extend into and cooperate with a peripheral channel in the of the attachment means 116, to secure the tap spout 114 to the tap body 112. Figure 23 shows a perspective cross-sectional view of a portion of a tap assembly according to an embodiment. The embodiment comprises a waste grate 200 that comprises a plurality of spokes extending from a central aperture. Figure 23 exemplifies when the tap spout 114 and waste grate 200 are attached. Figure 24 shows a perspective cross-sectional view of a waste grate according to an embodiment. The waste grate 200 is integrally formed into a top portion of a waste outlet 120. A screw thread cooperates with a corresponding screw thread in a bottom portion of the waste outlet 120. During installation, the two portions are introduced from opposite sides of a sink 302 and screwed together to securely attach the waste outlet 120 to the sink 302. Since in this embodiment the waste grate 200 is integrally formed with the waste outlet 120, installation is simplified since installation of the waste outlet 120 also results in installation of the waste grate 200. Figure 25 shows a plan view of four embodiments (A, B, C, D) of waste grates. The waste grate 200 may be sold separately or provided with a tap assembly 100, with different waste grates 200 being offered with different technical characteristics to suit differing technical needs, such as straining foods of different sizes. In embodiments, the waste grate 200 may be made from a single material or have a coating on a surface that contacts the tap assembly 100 when installed. This single material or coating may be designed to reduce friction, to allow the fluid communication channel 110 to be easily rotated with respect to the waste grate 200 with the waste grate 200 whilst still providing firm lateral and structural support for the fluid communication channel 110. For example, the coating may comprise graphene or Teflon. The coating may comprise a material that reduces friction when wet, such as plastic, thereby allowing the fluid communication channel 110 to be more easily rotated when the waste grate 200 is wet. The coating may comprise a material that expands when wet, such as cork. Therefore, the waste grate 200 may thus be configured to increase friction when wet, so that the fluid communication channel 110 may be rotated easily before use and gripped more firmly, thus supported more, when the waste grate 200 is wet. Figure 26 shows a perspective view of six embodiments (A, B, C, D, E, F) of sink assemblies. As shown in the embodiments of Figure 26, the waste outlet 120 may be provided to a side or a rear position in the sink 302. The tap body 112 may be curved and / or may comprise bent portions, for example one or more adjacent portions angled with respect to each other, such as one portion angled at 90 degrees with respect to an adjacent portion. The tap assembly 100 may be installed in a sink 302 that is rectangular, oval or any other shape. Figures 27, 28 and 29 show a series of perspective views (A, B, C) of sink assemblies according to embodiments, each of which can be transitioned between an operative and a non-operating state. In a non-operative state, the tap assembly is substantially contained within the volume of the sink 302 and no portion extends above the top of a side wall of the sink 302. Thus, a lid 304 can be provided which covers the sink when not in use, providing an unobstructed work top when the sink assembly is in a non-operative state. Accordingly, the invention may provide embodiments that are particularly suited to confined environments where space is a premium, such as campervans, boats or airplanes. Figure 27 shows a series of perspective views (A, B, C) of a sink assembly according to an embodiment. The sink assembly 300 comprises a sink 302 that comprises an internal volume V contained between the upper rim the bottom surface (alternatively expressed as the internal volume enclosed between the one or more sidewall(s) of the sink 302). The tap body 112 is flexible and comprises a plurality of watertight portions that can articulate with respect to adjacent portions. Accordingly, the tap body 112 can be formed to a variety of shapes and may even be collapsed so that is fully enclosed within the internal volume of the sink 302 (except for any portion extending below). The sink 302 further comprises a lid 304 which can be closed when the flexible tap body 112 is in a collapsed state, to finish the transition of the sink 302 to a non-operative state, so that when not in use the sink assembly 300 provides a flat surface with no protrusions. When the sink assembly is needed to be used, i.e., when it is necessary to transition the sink assembly to an operative state, the lid 304 may be opened and the tap body 112 adjusted to an upright position. Figure 28 shows a series of perspective views (A, B, C) of a sink assembly according to an embodiment. The sink assembly 300 comprises a sink 302 that comprises an internal volume V contained between the upper rim and the bottom surface (alternatively expressed as the internal volume enclosed between the one or more sidewall(s) of the sink 302). This embodiment offers similar advantages and features as the embodiment of Fig. 27 except that instead of a flexible tap body 112 the sink assembly 300 comprises a tap spout 114 that may be separated from a tap body 112. Thus, when the sink 302 is not required, i.e., to transition to a non-operative state, the tap spout 114 can be removed and stored in the sink or attached to the lid 304 as shown and the lid folded down to provide an unobstructed surface, with the tap spout 114 contained within the internal volume of the sink 302 (except for any portions extending below). When the sink assembly is required to be used, i.e., to transition the sink assembly to an operative state, the lid 304 may be lifted and the tap spout 114 re-attached to the tap body 112. Figure 29 shows a series of perspective views (A, B, C, D) of a sink assembly according to an embodiment. The sink assembly 300 comprises a sink 302 that comprises an internal volume V contained between the upper rim the bottom surface (alternatively expressed as the internal volume enclosed between the one or more sidewall(s) of the sink 302). This embodiment offers similar advantages and features as the embodiments of Figs. 27 and 28 except that instead of a flexible tap body 112 or a detachable tap spout 114, the tap body 112 comprises a one or more articulating joints 115 allowing one or more portion of the tap body 112 to be rotated with respect to an adjacent portion. Thus, when the sink 302 is not required, i.e., to transition to a non-operative state, the tap body 112 may be folded down within the sink to be fully enclosed within internal volume V, and the lid 304 then folded down to provide an unobstructed surface. When the sink assembly is required to be used, i.e., to transition the sink assembly to an operative state, the lid 304 may be lifted and the tap body 112 articulated to a raised position. Variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a study of the drawings, the disclosure and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality. The embodiments are purely illustrative and not exhaustive thus it will be appreciated by the skilled person that the features of any embodiment may be combined with the features of any other embodiment except where they are clearly not compatible. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be advantageously combined. If the term "adapted to" is used in the claims or description, it is noted the term "adapted to" is intended to be equivalent to the term "configured to". If the term "arrangement" is used in the claims or description, it is noted the term "arrangement" is intended to be equivalent to the term "system", and vice versa. Any reference signs in the claims should not be construed as limiting the scope.

Claims

1. A tap assembly (100) comprising:a tap body (112) comprising a fluid communication channel (112) extending between an inlet (102) and an outlet (104); anda waste outlet (120) for attachment to a sink (302) to allow waste water to drain from the sink; andwherein the fluid communication channel is adapted to extend through the waste outlet in use.

2. A tap assembly according to claim 1 wherein, the fluid communicationchannel is adapted to be supported by the waste outlet in an assembled configuration.

3. A tap assembly according to claim 1 or claim 2 adapted to limit a relativemotion between the waste outlet and the fluid communication channel in the assembled configuration.

4. A tap assembly according to any of claims 1 to 3, wherein the tap bodyis adapted so that the inlet and outlet extend from opposite sides of the waste outlet.

5. A tap assembly according to any of claims 1 to 4,wherein the waste outlet comprises a waste channel (140), and wherein the inlet extends through the waste channel.

6. A tap assembly according to claim 5, wherein the inlet extends axiallythrough a side wall (122) of the waste channel.

7. A tap assembly according to claim 6, wherein the waste channel isadapted to receive a water inlet pipe for providing water to the inlet.

8. A tap assembly according to any of claims 1 to 7, wherein the tapassembly comprises a tap spout (114), optionally wherein the tap spout is adapted to be releasably attachable to the tap body.

9. A tap assembly according to claim 8, , wherein the tap spout is adaptedto rotate relative to the tap body around a longitudinal axis (A).

10. A tap assembly according to any of claims 1 to 9, comprising a wastegrate (200) that is adapted to secure the tap body to the waste outlet in the assembled configuration.

11. A tap assembly according to any of claim 10, wherein the waste grate isadapted to engage with an outer portion of the tap body.

12. A tap assembly according to claim 10 or claim 11, wherein the wastegrate comprises two or more separate portions.

13. A tap assembly according to any of claims 10 to 12, wherein the wastegrate is adapted to facilitate a rotation of the tap body relative to the waste outlet.

14. A tap assembly according to any of claims 10 to 13, wherein the wastegrate is adapted to vary an ease of rotation of the tap body relative to the waste outlet according to a wetness of the waste grate.

15. A waste grate (200) for use with the tap assembly of claim 1, adapted torigidly secure the fluid communication channel of the tap body to the waste outlet.

16. A sink assembly (300) comprising a tap assembly according to any ofclaims 1 to 15 and further comprising a sink (302).

17. A method of assembling a tap assembly (100) according to claim 1,comprising the steps of:providing a tap body (112) comprising a fluid communication channel (110) extending between an inlet (102) and an outlet (104);providing a waste outlet (120);positioning the fluid communication channel through the waste outlet;andsupporting the fluid communication channel to extend through the waste outlet in an assembled configuration.

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