AU2003270936A1 - Tapware Mounting System - Google Patents

Description

P001 Section 29 Regulation 3.2(2)

AUSTRALIA

Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Application Number: Lodged: Invention Title: Tapware Mounting System The following statement is a full description of this invention, including the best method of performing it known to me us: TAPWARE MOUNTING SYSTEM FIELD OF THE INVENTION This invention relates to water tap installations, and to methods for mounting them in buildings.

BACKGROUND OF THE INVENTION In modern building practice, it is considered desirable to design and install taps such as hot and cold water taps in such a way that their connecting pipework is concealed. It is also popular to provide multiple valves whose outlets are connected to a single spout. Thus, in a very common arrangement where hot and cold water supplies are to be provided to a basin (or the like, such as a bath, spa or sink) all that is visible to a user are a spout and upper sections of two valves, the associated pipework being hidden underneath the basin or under a surrounding surface such as a benchtop. The visible valve upper sections typically include a handle, its spindle and a fixed decorative fitting that bears against the basin or benchtop surface.

In some cases, such as shower installations, the same arrangement is used but with a vertical wall rather than a horizontal surface, pipework being concealed behind or within the wall.

The present invention is directed to a number of problems that have been encountered with water valve installations of these types. It should be noted that the disclosure herein is in terms of water valves for controlling the flow of water to separate fittings such as spouts or shower heads, but that use of the term water valve is not intended to exclude "taps", i.e. water valve assemblies which are integral with a delivery spout, where the design is such that the invention is applicable.

A first problem is that of providing valve designs in which the fixed decorative fitting projects less far upwardly or outwardly from its mounting surface than is usual. Such designs are desirable according to modern aesthetic design trends. Decorative fittings of conventional type often project upwardly or outwardly by a distance comparable to their diameter, and the valve handle may increase this distance even further. The dimensions of the decorative fitting are usually governed by the dimensions of the components that they conceal.

A related problem is provision of such "low profile" designs using as many components of conventional type as possible, to minimize manufacturing and stockholding costs.

A third problem is commonly encountered in wall installations. Normally, a component of the valve, the valve body, is first secured to an element such as a noggin, stud or the like or otherwise within a cavity in a solid wall. Later after completion of the surface of the wall, remaining parts of the valve are assembled to the valve body, with the visible parts finally being secured against the wall surface (eg a partition of plasterboard). If the distance from the element supporting the valve body to the wall surface differs from its planned value, as is common, conventional valve components may not permit the variation to be taken up when fitting them. The result can be rectification costs and/or a poor quality result.

In many, if not all known valve designs, the parts which allow adjustment for such variability are the decorative cover and a mating part within it. Providing for adjustment in a "low profile" valve for wall installation, particularly one based on standard valve components, is therefore a serious problem.

SUMMARY OF THE INVENTION According to one aspect, the present invention provides a water valve assembly mountable in an aperture of a panel member including: a valve body; a cartridge threadably engagable in said valve body; and an engaging member threadably engagable with the cartridge whereby to serve as a cartridge locknut, and formed so as to further bear against a first surface of the panel member when the valve assembly is mounted in the aperture thereof.

Advantageously, the invention thereby enables the valve assembly to be mounted in an aperture formed in a panel member, such as a benchtop, wall, bath, spa or sink panel, and supported by the engaging member bearing against an external surface of the panel, thus avoiding the need to provide a nut threaded on the valve body to perform this external supporting function. Accordingly, the valve assembly may be mounted with the valve body located entirely behind the plane of the external surface, resulting in a substantial reduction in the extent to which the assembly protrudes beyond the surface of the panel when compared with prior art assemblies, and enabling the provision of a "low profile" installation.

In an embodiment particularly suited to wall installations in which it is advantageous to provide for axial adjustability of the valve body position, the engaging member includes an inner engaging portion and an outer engaging portion, wherein: the inner engaging portion is threadably engagable with the cartridge whereby to enable the engaging member to serve as a cartridge locknut; the outer engaging portion is threadably engagable with the inner engaging portion; and the outer engaging portion is formed so that when it is engaged with the inner engaging portion it is able to bear against the first surface of the panel member.

Accordingly, installation of such an embodiment may include the steps of securing the inner engaging portion of the engaging member to the cartridge, and then screwing the outer engaging portion of the engaging member onto the inner engaging portion far enough so that it bears against, for example, the external surface of a wall through which the assembly is installed. Thus there is advantageously provided a degree of independence between the position of the inner engaging portion serving as a cartridge locknut and the position of the outer engaging portion bearing against the surface which allows for variation in the axial position of the valve body relative to the wall.

The engaging member may include a washer which, when the valve assembly is installed in the aperture, bears against said first surface of the panel member.

In preferred embodiments, the cartridge includes a spindle, and the valve assembly further includes: a handle mountable to the spindle; and an external cover having an opening for the spindle and being threadably engagable with the engaging member; wherein said external cover is formed so that when it is engaged with the engaging member the spindle passes through the opening and the external cover includes a portion that on installation of the valve assembly abuts the first surface of the panel member. The external cover serves to conceal the cartridge and valve body, thus making the assembly more aesthetically appealing. As known in the art, the external cover may include a plurality of components. For example, there may be an outer part and a cooperating flange that lies between the outer part and the first surface. The external cover may include a washer or a resilient sealing member (such as an O-ring) that in use abuts said first surface, and prevents water from leaking past the cover and into the aperture in the panel member.

Preferably, the external cover has an external face that on installation is generally opposed to the portion that abuts the first surface of the panel member and substantially parallel to said first surface. It has been found possible to provide that the distance between said first surface and said external face of said cover is less than about 20 mm, or even less than 15 mm.

The valve assembly may include handle locating means for holding the handle in a fixed axial position relative to the external cover. This is particularly desirable in water valve assemblies having "low profile" external covers, where different handle positions due to variations in the valve body and cartridge positions would be particularly apparent. It is preferable, and particularly in "low profile" water valve assemblies, that the cartridge be of the type whose spindle does not move axially as it is rotated.

In a particularly preferred embodiment, the handle locating means includes a part on the external cover engagable with a cooperating part of the handle whereby the handle is located axially without limiting rotation of the spindle by the handle. For example, the part on the external cover engagable with a cooperating part of the handle may include a circlip, and said cooperating part of the handle may include a complementary cavity. Preferably, the spindle is receivable in any of a range of axial positions in a cooperating cavity in the handle. Variations in position of the spindle due to installation variations then need not affect the handle axial position.

The spindle may include an externally splined portion and said cooperating cavity may include a complementary internally splined portion such that the spindle is receivable in the range of axial positions in which the splined portions interengage so that the spindle is rotated by a rotation of the handle.

Preferably, the engaging member extends axially into the aperture when the valve assembly is mounted therein. The engaging member may be so proportioned that the water valve assembly is mountable with no part of the valve body extending from the aperture beyond the first surface of the panel member.

The engaging member may include a washer that bears against the first surface of the panel member when the valve assembly is mounted in the aperture thereof.

For basin or benchtop type mounting, wherein the panel member includes a second surface opposed to the first surface thereof, the valve assembly may further includes a valve body locknut threadably engagable with the valve body such that the valve assembly is securely mountable in the aperture of the panel member with the engaging member bearing against the first surface and the valve body locknut bearing against either the second surface of the panel member or a washer disposed between the locknut and the second surface.

For wall type mounting, the valve body is preferably securable to a fixed structure spaced apart from the panel member. The fixed structure may be, for example, a stud or noggin located within the wall behind the panel member.

Where hot and cold water valves are to be wall mounted, two such valve bodies may be provided in a single assembly. Water valve assemblies as disclosed herein that are included in such single assemblies are within the scope of the invention.

According to another aspect, the invention provides an engaging member for use with a water valve assembly mountable in an aperture of a panel member, said valve assembly having a valve body and a cartridge threadably engagable in the valve body, wherein the engaging member is member threadably engagable with the cartridge whereby to serve as a cartridge locknut, and formed so as to further bear against a first surface of the panel member when the valve assembly is mounted in the aperture thereof.

The engaging member may include an inner engaging portion and an outer engaging portion, wherein: the inner engaging portion is threadably engagable with the cartridge whereby to enable the engaging member to serve as a cartridge locknut; the outer engaging portion is threadably engagable with the inner engaging portion; and the outer engaging portion is formed so that when it is engaged with the inner engaging portion it is able to bear against the first surface of the panel member.

According to a further aspect, the invention provides a water tap installation wherein a water valve assembly in accordance with the invention is secured within an aperture in a panel member with said engaging member bearing against a first surface of the panel member.

For basin or benchtop type mounting, the water tap installation may include a water valve assembly according to an embodiment having an engaging member and a valve body locknut, secured within an aperture in a panel member with said engaging member and said valve body locknut bearing against opposing surfaces of the panel member.

For wall type mounting, the water tap installation may include a water valve assembly according to an embodiment wherein the valve body is securable to a fixed structure, secured within an aperture in a panel member with said engaging member bearing against a first surface of the panel member and said valve body secured to a fixed structural element spaced apart from the panel member and aligned with the aperture.

According to still a further aspect, the invention provides a method for installing a water valve assembly of the type having an engaging member and a valve body locknut in an aperture in a panel member having first and second opposed surfaces, including the steps of: threadably engaging the valve body locknut on the valve body; assembling the cartridge to the valve body; locating the valve body in the aperture; securing the engaging member to the cartridge; and adjusting and tightening the valve body locknut and/or the engaging member to locate and secure the valve body axially; According to yet another aspect, the invention provides a method for installing a water valve assembly of the type wherein the engaging member includes inner and outer engaging portions, and the valve body is securable to a fixed structure, in an aperture in a panel member having a first surface, including the steps of: securing the valve body to a structural element behind the panel member; assembling the cartridge to the valve body; securing the inner engaging portion of the engaging member to the cartridge; and screwing the outer engaging portion of the engaging member onto the inner engaging portion far enough so that it bears against the first surface or a washer thereon.

Further benefits and advantages of the valve assembly, engaging member, tap installation, and method of the present invention will become apparent in the following description of preferred embodiments of the invention, which should not, however, be considered to limit the scope of the invention which is defined by the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described non-limitingly by reference to the attached Figures, of which: Figure 1 is a side elevation of a prior art installation of a valve in a benchtop, some components being seen in cross section in a plane containing the central axis of a spindle of the valve; Figure 2 is a side elevation of a prior art installation of a valve in a wall, some components being seen in cross section in a plane containing the central axis of a spindle of the valve; Figure 3 is a side elevation of an installation according to the invention of a valve in a benchtop, some components being seen in cross section in a plane containing the central axis of a spindle of the valve; Figure 4 is a side elevation of an installation according to the invention of a valve in a wall, some components being seen in cross section in a plane containing the central axis of a spindle of the valve; Figure 5 is a side elevation of a valve installation the same as that shown in Figure 4 save for a different dimension between a structural element and a partition forming part of the wall some components being seen in cross section in a plane containing the central axis of a spindle of the valve; and Figure 6 is a side elevation of a valve installation the same as that shown in Figure 5, save for a different cartridge being used in the valve, some components being seen in cross section in a plane containing the central axis of a spindle of the valve.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Figure 1 shows an arrangement whereby a water valve assembly 1, such as would be found in a bathroom or kitchen, is mounted to a benchtop 2.

Valve assembly 1 is of known type, and includes a valve body 3, cartridge 4, and cartridge locknut 5. Valve body 3 has an external thread 6 over a part of its length and is secured within an opening 7 in benchtop 2 by an upper nut 8 and lower nut 9. Nuts 8 and 9 are spaced slightly from surfaces 10 and 11 of benchtop 2 by washers 12 and 13. Cartridge 4 has an external thread 14 which is screwed into a mating female thread (not shown) in valve body 3. Cartridge locknut 5 is screwed onto the external thread of cartridge 4. Apart from maintaining the desired longitudinal position of cartridge 4 in valve body 3, the cartridge locknut 5 has a smooth bore 15 and an O-ring seal 16 on the cartridge 4 bears against surface 15. This provides a barrier to leakage of water upwardly past the cartridge 4. Cartridge 4 is removable from body 3 so that its sealing washer (not shown) can be replaced when worn out.

An ornamental cover 20 is provided to hide those parts of valve assembly 1 that protrude above upper surface 10 of the benchtop 2. Cover 20 engages an external thread 21 on cartridge locknut 5, and at installation is screwed downwardly to abut a dress flange 22 which lies against surface 10. Extending upwardly from the cartridge 4 is a spindle 17 for a handle 18. Spindle 17 is secured to a shaft 19 of handle 18 in known manner.

Valve body 3 has provision for inlet and outlet pipes 123 and 124 respectively to be connected in known fashion, below the benchtop 2.

Note that a substantial part of valve assembly 1 protrudes above surface of the benchtop 2. Although valve body 3 can be installed in a limited range of vertical positions, depending on the positioning of the nuts 8 and 9, the arrangement shown in Figure 1 does not lend itself to "low profile" installations, in which dimension "hl" in Figure 1 is comparatively small, so that the handle 18 can be located closer than is usual to the surface 10. (The term "low profile" will be used herein for this type of installation.) Benchtop installations such as that shown in Figure 1 are not the only type required. In particular, it may be required to install a valve assembly in a wall. A further problem often arises in such installations. Figure 2 shows a wall installation of a valve assembly 23. This is generally similar to that in Figure 1, but body 24 of valve assembly 23 is adapted to be secured by screwing or nailing) to a noggin, stud or other structural element 25 behind a partition 26 having an external surface 75, so that the body 24 is supported without excessively stressing the partition 26. The partition 26 may be, for example, plasterboard or plasterboard with ornamental tiling thereon, and not suitable as the main supporting element for the valve assembly 23. In practice, the distance in Figure 2) between the element 25 and partition 26 may differ significantly from its intended value. A degree of adjustability is available at installation in that cover 27 is screwed down onto cartridge locknut 31 of valve assembly 23 by whatever distance is required for it to abut surface 75. However, this degree of adjustability may not be adequate to deal with variations in the value of h2 between installations. In benchtop installations such as that in Figure 1, adjustment is usually less critical because the valve assembly is installed before its connecting pipework, whereas in wall installations the reverse is usually the case. Providing enough adjustability for wall-type installations is more difficult to achieve in low profile installations, and particularly where standard valve components are to be used, as is desirable. Cartridges of several lengths are available, and can assist, but the range is limited and it is desirable to use standard components as much as possible.

Figure 3 shows a benchtop installation of a valve assembly 28 according to one aspect of the present invention, that is "low profile". That is, valve assembly 28 includes an external cover 43 that protrudes much less far from surface 38 than cover 20 in Figure 1, for example. It will be noted that the valve assembly 28 includes a standard valve body 29, and a standard cartridge 30. However, instead of a standard or conventional cartridge locknut (such as cartridge locknuts 5 or 31) there is provided a engaging member 32 that is in effect a modified locknut (and will be referred to as such below). Modified locknut 32 is adapted to operate as a cartridge locknut in exactly the same way as locknuts 5 and 31. Thus, there is an internal thread 33 whereby locknut 32 is able to be screwed downwardly onto cartridge 30, seating on a washer 34 which in turn bears against valve body 29. Further, there is a smooth bore 35 and O-ring 36 of cartridge 30 bears against bore 35 as in the conventional installations shown in Figures 1 and 2.

Standard cartridge locknuts 5 and 31 have outer diameters similar to the outside diameter of valve bodies 3 and 24. However, modified locknut 32 has a larger corresponding dimension, and has a lower face 136 which abuts a washer 37 on surface 38 of benchtop 41 outside an opening 39 in which valve assembly 28 is mounted. A standard nut 40 is threadably engaged on the valve body 29 in conventional manner. Thus, at installation, valve assembly 28 is secured to benchtop 41 between modified locknut 32 and nut 40 in a manner similar to the arrangement shown in Figure 1.

Modified locknut 32 has an external thread 42. Once valve assembly 28 is secured in place by nuts 32 and 40, internally-threaded low profile cover 43 is screwed downwardly onto thread 42 until an O-ring 44 within a recess 45 on cover 43 seats on surface 38. O-ring 44 is optional, with other arrangements known in the art being possible. For example, a washer (not shown) may be placed between cover 43 and surface 38, or a separate ornamental ring or "dress flange" (not shown). There is a clearance between cover 43 and an upper face 54 of modified locknut 32.

Modified locknut 32 has spanner flats in addition to thread 42, to aid in tightening against valve body 29. These are not deep enough to prevent thread 42 engaging with cover 43.

To complete the installation, valve handle 46 is secured on spindle 47 of valve assembly 28. Spindle 47 is splined and handle 46 has its height above cover 43 (with the valve assembly 28 shut off or, where the cartridge is of suitable type, at all times) set at a fixed value by a circlip 48 on a cylindrical formation 53 of cover 43 engaging a cavity in handle 46 in known manner. This fixed height is considered desirable in low profile designs particularly. Other securing methods known in the art may be used if required.

The installation shown in Figure 3 is a low profile one, yet enables the use of a standard valve body 29 and cartridge 30. However, it is not intended to enable the position of the valve body 29 to be varied longitudinally relative to benchtop 41.

Figures 4 and 5 show a similarly low profile wall-type installation of a valve assembly 49. Valve body 50 of valve assembly 49 is secured to a structural element 51 stud or noggin as before) behind a partition 52. In this case (as in the case shown in Figure 2) it is required to enable satisfactory mounting of valve assembly 49 for various values of dimension "h3" shown in Figure 4.

Figures 4 and 5 show different values of dimension "h3".

Instead of the integral modified locknut 32 shown in Figure 3, the installation of Figures 4 and 5 uses an engaging member that includes an inner engaging portion 55 and an outer enaging portion 56, herein also referred to as inner locknut 55 and outer locknut 56. Inner locknut 55 is similar to conventional locknuts 5 and 31, being internally threaded for screwing down on to a washer 57 on valve body 50, adapted to retain cartridge 58, bored to seal against O-ring 64 on cartridge 58, and also externally threaded. Outer locknut 56 has an internal thread 59 whereby it can be screwed onto inner locknut 55, a lower face 62, and an external thread 60 onto which can be screwed a low profile cover 61.

In a typical installation of valve assembly 49, valve body 50 is first secured to structural element 51, extending toward an opening 63 in partition 52. In new construction, partition 52 is likely to be installed after body 50 is installed and connected to its pipework (not shown) and before completion of the valve installation. Cartridge 58 is subsequently screwed into body 50 in conventional fashion, and then inner locknut 55 is screwed onto cartridge 58, seating on washer 57 on body 50. Outer locknut 56 is screwed on to inner locknut 55 and positioned to abut washer 65 which in turn abuts partition 52. Cover 61 is then screwed on to external thread 60 of outer locknut 56 as in the installation shown in Figure 3, O-ring 66 in cover 61 seating against partition 52.

Comparing Figures 4 and 5, it can be seen that outer locknut 56 is shown in two different positions on inner locknut 55. By varying the position of outer locknut 56 on inner locknut 55, the required ability to allow for different distances between partition 52 and element 51 is achieved. The outer locknut 56 may have a cylindrical formation 67 extending downwardly into opening 63 to increase the length of threaded engagement between the inner and outer locknuts 55 and 56 12 and therefore increase the degree of adjustability provided. The inner locknut may also be provided in a range of lengths to enhance the range of dimension "h3" that can be accommodated. Figure 6 shows a similar installation of valve assembly 49 in which the dimension "h3" is large enough to require the use of a long-spindle cartridge 68 in place of cartridge 58.

Claims (22)

1. A water valve assembly mountable in an aperture of a panel member including: a valve body; a cartridge threadably engagable in said valve body; and an engaging member threadably engagable with the cartridge whereby to serve as a cartridge locknut, and formed so as to further bear against a first surface of the panel member when the valve assembly is mounted in the aperture thereof.

2. A water valve assembly according to claim 1 wherein the engaging member includes an inner engaging portion and an outer engaging portion, and wherein: the inner engaging portion is threadably engagable with the cartridge whereby to enable the engaging member to serve as a cartridge locknut; the outer engaging portion is threadably engagable with the inner engaging portion; and the outer engaging portion is formed so that when it is engaged with the inner engaging portion it is able to bear against the first surface of the panel member.

3. A water valve assembly according to either one of claims 1 and 2 wherein the cartridge includes a spindle, and the valve assembly further includes: a handle mountable to the spindle; and an external cover having an opening for the spindle and being threadably engagable with the engaging member; wherein said external cover is formed so that when it is engaged with the engaging member the spindle passes through the opening and the external cover includes a portion that on installation of the valve assembly abuts the first surface of the panel member.

4. A water valve assembly according to claim 3 wherein the external cover has an external face that on installation is generally opposed to the portion that abuts the first surface of the panel member and substantially parallel to said first surface, and wherein the distance between said external face and said first surface is less than 20 mm.

A water valve assembly according to claim 3 or 4 including handle locating means for holding the handle in a fixed axial position relative to the external cover.

6. A water valve assembly according to claim 5 wherein the handle locating means includes a part on the external cover engagable with a cooperating part of the handle whereby the handle is located axially without limiting rotation of the spindle by the handle.

7. A water valve assembly according to claim 6 wherein said part on the external cover engagable with a cooperating part of the handle includes a circlip, and said cooperating part of the handle includes a complementary cavity.

8. A water valve assembly according to any one of claims 5 to 7 wherein the spindle is receivable in any of a range of axial positions in a cooperating cavity in the handle.

9. A water valve assembly according to claim 8 wherein the spindle includes an externally splined portion and said cooperating cavity includes a complementary internally splined portion such that the spindle is receivable in the range of axial positions in which the splined portions interengage so that the spindle is rotated by a rotation of the handle.

A water valve assembly according to any one of the preceding claims wherein the engaging member extends axially into the aperture when the valve assembly is mounted therein.

11. A water valve assembly according to any one of the preceding claims wherein the engaging member is so proportioned that the water valve assembly is mountable with no part of the valve body extending from the aperture beyond the first surface of the panel member.

12. A water valve assembly according to any one of the preceding claims wherein the engaging member includes a washer that bears against the first surface of the panel member when the valve assembly is mounted in the aperture thereof.

13. A water valve assembly according to any one of the preceding claims wherein the panel member includes a second surface opposed to the first surface thereof, and the valve assembly further includes a valve body locknut threadably engagable with the valve body such that the valve assembly is securely mountable in the aperture of the panel member with the engaging member bearing against the first surface and the valve body locknut bearing against either the second surface of the panel member or a washer disposed between the locknut and the second surface.

14. A water valve assembly according to any one of claims 1 to 12 wherein the valve body is securable to a fixed structure spaced apart from the panel member.

An engaging member for use with a water valve assembly mountable in an aperture of a panel member, said valve assembly having a valve body and a cartridge threadably engagable in the valve body, wherein the engaging member is member threadably engagable with the cartridge whereby to serve as a cartridge locknut, and formed so as to further bear against a first surface of the panel member when the valve assembly is mounted in the aperture thereof.

16. The engaging member of claim 15 including an inner engaging portion and an outer engaging portion, wherein: the inner engaging portion is threadably engagable with the cartridge whereby to enable the engaging member to serve as a cartridge locknut; the outer engaging portion is threadably engagable with the inner engaging portion; and the outer engaging portion is formed so that when it is engaged with the inner engaging portion it is able to bear against the first surface of the panel member.

17. A water tap installation wherein a water valve assembly according to any one of claims 1 to 14 is secured within an aperture in a panel member with said engaging member bearing against a first surface of the panel member.

18. A water tap installation wherein a water valve assembly according to claim 13 is secured within an aperture in a panel member with said engaging member and said valve body locknut bearing against opposing surfaces of the panel member.

19. A water tap installation wherein a water valve assembly according to claim 14 is secured within an aperture in a panel member with said engaging member bearing against a first surface of the panel member and said valve body secured to a fixed structural element spaced apart from the panel member and aligned with the aperture.

A method for installing a water valve assembly according to claim 13 in an aperture in a panel member having first and second opposed surfaces, including the steps of: threadably engaging the valve body locknut on the valve body; assembling the cartridge to the valve body; locating the valve body in the aperture; securing the engaging member to the cartridge; and adjusting and tightening the valve body locknut and/or the engaging member to locate and secure the valve body axially;

21. A method for installing a water valve assembly according to claim 14 when dependent on claim 2 in an aperture in a panel member having a first surface, including the steps of: securing the valve body to a structural element behind the panel member; assembling the cartridge to the valve body; securing the inner engaging portion of the engaging member to the cartridge; and screwing the outer engaging portion of the engaging member onto the inner engaging portion far enough so that it bears against the first surface or a washer thereon.

22. A water valve assembly substantially as herein described with reference to Figures 3 to 6 of the accompanying drawings. DATED this 16th day of December 2003 ROGERS SELLER MYHILL PTY LTD WATERMARK PATENT TRADE MARK ATTORNEYS 290 BURWOOD ROAD HAWTHORN VICTORIA 3122 AUSTRALIA MCQ/MAS