AU2005246923A1 - A plumbing fitting - Google Patents
A plumbing fitting Download PDFInfo
- Publication number
- AU2005246923A1 AU2005246923A1 AU2005246923A AU2005246923A AU2005246923A1 AU 2005246923 A1 AU2005246923 A1 AU 2005246923A1 AU 2005246923 A AU2005246923 A AU 2005246923A AU 2005246923 A AU2005246923 A AU 2005246923A AU 2005246923 A1 AU2005246923 A1 AU 2005246923A1
- Authority
- AU
- Australia
- Prior art keywords
- plumbing fitting
- fitting according
- plumbing
- fitting
- washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Description
AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION A PLUMBING FITTING The following statement is a full description of this invention including the best method of performing it known to us: A PLUMBING FITTING
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0 TECHNICAL FIELD S 5 The present invention relates to a plumbing fitting for use with washing appliances such as dishwashers and washing machines.
BACKGROUND
10 Domestic washing appliances have been commonly used for decades to 0 o minimise the manual labor involved with washing various household items.
During washing, wash water is typically drained from the washing appliance via a drainage hose. In recent years, the drainage hose has often been fastened between the sink and a water trap located beneath the sink. The Applicant has recognized that when wash water drains from the washing appliance and into the water trap, gurgling and splashing noises can undesirably emanate from the water trap and the sink. Many washing appliance manufacturers place a high emphasis on manufacturing a quiet appliance, however, this drainage noise can be undesirably louder than the washing function of the appliance itself.
It is an object of the present invention to provide a means for reducing noises which emanate from the water trap when washing with washing appliances.
SUMMARY OF THE INVENTION According to one aspect of the present invention, there is provided a plumbing fitting for use with a washing appliance, the plumbing fitting including: a sole water trap having an inlet portion for receiving water from a sink and an outlet portion from which the water can drain; and an inlet defined in the outlet portion for receiving water from the washing appliance.
2 m In one embodiment, the water trap is an S-type trap. Alternatively, the water
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o trap may be a P-type trap.
ci 0In one embodiment, the inlet is located level with or beneath the water trap S 5 when the fitting is fitted. The water trap may not include an air vent defined in the outlet portion. The water trap may include a pair of bent fittings which can be releasably fastened together.
The inlet may include a tube which extends from the outlet portion. The tube 10 may extend upwardly. The tube may include a barb at its free end which 0 o includes a beveled lip over which a washing appliance hose can be fitted.
The inlet portion may include fastening means for facilitating fastening of the fitting either directly with the sink or with a pipe extending from the sink. The fastening means may include a threaded nut. The inlet portion may include a retaining ledge for retaining the nut on the fitting. The fastening means may further include a rubber washer.
The outlet portion may include fastening means for facilitating fastening of the fitting to a drainpipe. The drainpipe may be vertically disposed. The fastening means may include a threaded shaft. The fastening means may further include a threaded nut for engaging with the threaded shaft. The fastening means may further include a tapered rubber washer. The outlet portion may include a widened end.
The washing appliance may be a dishwasher or a washing machine.
According to a further aspect of the present invention, there is provided a plumbing fitting kit for use with a washing appliance, the fitting kit including: a water trap having an inlet portion for receiving water from a sink and an outlet portion from which the water can drain; and a tubular fitting for fastening with the outlet portion and defining an inlet for receiving water from the washing appliance.
p According to a further aspect of the present invention, there is provided a
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o plumbing fitting for use with washing appliances, the fitting including: an axial pipe defining a pair of opposed openings; and 0a tube extending from the pipe to which a washing appliance hose can be attached.
Preferably, the tube extends obliquely from the pipe and has a barbed free end.
In one embodiment, the axial pipe defines a threaded end. The threaded end 0 omay be widened. The fitting may include a threaded nut. The fitting may also include a tapered washer.
Alternatively, the axial pipe may define a narrowed end. The narrowed end may be inwardly stepped. The fitting may include a resilient sleeve for engagement with the stepped end. The sleeve may include a plurality of outwardly extending ribs.
According to a further aspect of the present invention, there is provided a resilient sleeve for engagement with a plumbing fitting, the sleeve including a plurality of outwardly extending ribs.
According to a further aspect of the present invention, there is provided a plumbing fitting for use with washing appliances, the fitting including: a bent pipe which is threaded at each end; and a tube extending from the pipe and for attaching with a washing appliance hose.
Preferably, the bent pipe is generally U-shaped.
According to one aspect of the present invention, there is provided a plumbing fitting for use with a washing appliance, the plumbing fitting including: a sole water trap; and San inlet defined in the fitting downstream of the water trap and for
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o receiving water from the washing appliance.
ci BRIEF DESCRIPTION OF THE DRAWINGS Preferred features, embodiments and variations of the invention may be discerned from the following Detailed Description which provides sufficient cinformation for those skilled in the art to perform the invention. The Detailed Description is not to be regarded as limiting the scope of the preceding 1~ 0 Summary of the Invention in any way. The Detailed Description will make 0 o reference to a number of drawings as follows: Figure 1 is a side schematic view of a drainage system including a plumbing fitting for use with a washing appliance according to a first embodiment of the present invention.
Figure 2 is an exploded side view of the plumbing fitting of the first embodiment.
Figure 3a is a top plan view of a nut of the plumbing fitting of Figure 2.
Figure 3b is side sectional view of the nut of Figure 3a.
Figure 4 is an exploded side view of a plumbing fitting for inclusion in a plumbing fitting kit, in accordance with a second embodiment of the present invention.
Figure 5 is a perspective view of a first extension fitting which can be included with the plumbing fitting kit of the second embodiment.
Figure 6 is a perspective view of a second extension fitting which can be alternatively included with the plumbing fitting kit of the second embodiment.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
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0 Figure 1 shows a drainage system 1 for draining wash water from a sink 26 and a washing appliance 28. The drainage system 1 includes a plumbing fitting 2a which has a pair of inlets which are interconnected to the washing appliance 28 and the sink 26 respectively. The plumbing fitting 2a further includes a single outlet which is connected to a drainpipe 32. The inlet 16, to cwhich a drainage hose 30 of the washing appliance 28 is connected, is located downstream from an S-type water trap of the plumbing fitting 2a. The a 10 water trap serves as an attenuator for attenuating any noise generated when 0 o wash water drains from the drainage hose 30 into the plumbing fitting 2a via inlet 16.
Referring to Figure 2, the plumbing fitting 2a includes a J-fitting 4 and a Ufitting 6 which can be releasably fastened together to define the S-type water trap. Each fitting 4, 6 is tubular and has a bent pipe body which is integrally molded from plastics material.
The J-fitting 4 includes a pair of ledges 14a, 14b which are each located at a respective end of the bent pipe body. In use, a pair of rubber ring-washers 10Ob are each fitted to a corresponding end of the J-fitting 4 so as to abut against a corresponding ledge 14a, 14b.
The J-fitting 4 further includes a pair of threaded nuts 8a, 8b of like construction as shown in Figure 3. Each nut 8 defines a central aperture 22 through which the J-fitting 4 body extends and further includes a plurality of outer lugs 18 to facilitate gripping of the nut 8 with a hand during tightening.
The base of each nut 8 also includes an inner shelf 20 which abuts a ledge 14 of the J-fitting 4 so as to prevent the nut 8 from being removed from the Jfitting 4. The nut 8 further includes a circular collar which defines an inner thread portion 24.
Returning to Figure 2, the U-fitting 6 includes a bent pipe which has a pair of flared and threaded portions 34a, 34b which are each located at a respective end of the bent pipe. An inlet 16 in the form an upwardly extending tube is
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o provided for fastening with the drainage hose 30 of the washing appliance 28.
The tubular inlet 16 includes a beveled lip at its free end over which the 0washing appliance hose 28 can be force fitted. The barb formed by the S 5 beveled lip impedes the washing machine hose 28 from being removed from the inlet 16. The U-fitting 6 further includes a nut 8c (Figure 3) and a tapered rubber ring washer 12 for being seated on the shelf 20 of the nut 8c.
The installation of the plumbing fitting 2a in the drainage system 1 will now be 1 0 described.
Initially, the J-fitting 4 and U-fitting 6 are interconnected together to form the S-type water trap. Rubber ring washer 10b is located on the corresponding end of J-fitting 4 and is subsequently sandwiched between ledge 14b and outer threaded portion 34a. The nut 8b is then threaded onto outer threaded portion 34a so as to form a water tight seal between J-fitting 4 and U-fitting 6.
In a similar manner, rubber ring washer 10a can be fitted to the inlet portion 7 of the fitting 2a and sandwiched between the ledge 14a and the base of the sink 26 when the nut 8a is engaged with a corresponding thread of the sink 26.
The outlet portion 9 of the fitting 2a is then fastened to the vertical drainpipe 32. The nut 8c and tapered rubber washer 12 are threaded onto the upper end of the drainpipe 32, in that order. The outer threaded portion 32b of Ufitting 6 is then aligned in abutment with the tip of drainpipe 32. Next, the nut 8c is engaged with the threaded portion 34b which causes the tapered washer 12 to be compressed between the drainpipe 32 and the U-fitting 6, thereby forming a water tight seal. During threading of the nut 8c on the threaded portion 34b, the tapered washer 12 is seated on the shelf 20 of the nut 8c.
The drainage hose 30 of the washing appliance 28 can then be next force fitted over the beveled lip of inlet 16.
When installed, the inlet portion 7 of fitting 2a is vertically disposed and
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oreceives wash water from the sink 26. The outlet portion 16 of fitting 2a is also vertically disposed and drains wash water from the sink (via the water trap) and drainage hose 30 into drain pipe 32. Any drainage noise will be o 5 attenuated by the water trap before reaching the sink 26.
According to a second embodiment of the present invention, there is provided ca plumbing fitting kit which can be similarly used with the washing appliance 28. The kit includes a water trap fitting 2b as shown in Figure 4, and a first or second tubular extension fitting 36a, 36b of the type shown in Figures 5 and 6 0 orespectively.
It will be appreciated that the plumbing fitting 2b shown in Figure 4 is similar to the plumbing fitting 2a previously described in relation to Figure 2. Therefore, like reference numerals in Figure 4 refer to corresponding features previously described with reference to the first embodiment.
Referring to Figure 5, the kit may include a first extension fitting 36a. The extension fitting 36a includes an integrally formed plastic axial pipe 38a which defines an outer threaded portion 34. An inlet 16 is provided which extends upwardly from the pipe 38a to which the washing appliance hose 30 can be connected as before. The threaded end portion 34 is widened to receive drain pipe 32, and the extension fitting 36a includes a threaded nut 8 and tapered washer 12 as previously described.
The extension fitting 36a can be releasably fastened in between the outlet portion 9 of the plumbing fitting 2b and the upper end of the vertical drainpipe 32 in a water tight manner.
Referring to Figure 6, the kit may include a second extension fitting 36b. The extension fitting 36b includes an integrally formed plastic axial pipe 38b which defines a narrowed end 40 which is inwardly stepped. As before, an inlet 16 is provided which extends upwardly from the pipe 38b to which the washing appliance hose 30 can be connected. The extension fitting 36b includes a Sresilient rubber sleeve 42 for engagement with the stepped end 40. The
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o sleeve 42 includes a lip 44 for abutting the step defined by the stepped end and plurality of outwardly extending ribs 46.
S 5 in use, the sleeve 42 is engaged with the stepped end 40 (as shown by the arrow in Fig. 6) and then force fitted into the drainpipe 32. The ribs 46 engage with the inner surface of the drainpipe 32 to form a water tight seal.
A person skilled in the art will appreciate that many embodiments and variations can be made without departing from the ambit of the present 0 oinvention.
In the first embodiment described, the water trap did not include an air vent defined in the outlet portion 9 downstream from the water trap). In an alternative embodiment, the U-fitting may include an air vent in the outlet portion 9 through which gases in drain pipe 32 may escape.
In the preferred embodiments described, the water trap was an S-type water trap. In an alternative embodiment, the water trap may be a P-type water trap.
In the preferred embodiments described, the inlet portion 7 of the plumbing fitting 2 was interconnected directly to a sink 26. In an alternative embodiment, the inlet portion 7 may instead be interconnected to a pipe which extends from the sink 26.
In the preferred embodiment, the inlet 16 was generally located level with the water trap. In alternative embodiments, the inlet 16 may be located beneath the water trap.
In compliance with the statute, the invention has been described in language more or less specific to structural or methodical features. It is to be understood that the invention is not limited to specific features shown or ifl described since the means herein described comprises preferred forms of 0 putting the invention into effect.
o 0\ In
Claims (25)
1. A plumbing fitting for use with a washing appliance, the plumbing fitting Cincluding: oa sole water trap having an inlet portion for receiving water from a sink and an outlet portion from which the water can drain; and an inlet defined in the outlet portion for receiving water from the washing cappliance.
2. A plumbing fitting according to claim 1, wherein the water trap is an S- 0 otype trap.
3. A plumbing fitting according to claim 1, wherein the water trap is a P-type trap.
4. A plumbing fitting according to claim 1, wherein the inlet is located level with or beneath the water trap when the fitting is fitted. A plumbing fitting according to claim 1, wherein the water trap is of a type not having an air vent defined in the outlet portion.
6. A plumbing fitting according to claim 1, wherein the water trap includes a pair of bent fittings which can be releasably fastened together.
7. A plumbing fitting according to claim 1, wherein the inlet includes a tube which extends from the outlet portion.
8. A plumbing fitting according to claim 7, wherein the tube extends upwardly in use.
9. A plumbing fitting according to claim 7 or claim 8, wherein the tube includes a barb at its free end having a beveled lip to retain a washing appliance hose. 11 I 10. A plumbing fitting according to claim 1, wherein the inlet portion includes 0 o a fastening means for facilitating fastening of the fitting either directly with the sink or with a pipe extending from the sink. o 11. A plumbing fitting according to claim 10, wherein the fastening means includes a threaded nut.
12. A plumbing fitting according to claim 10, wherein the inlet portion includes a retaining ledge for retaining the nut on the fitting. o 13. A plumbing fitting according to claim 11, wherein the fastening means further includes a rubber washer.
14. A plumbing fitting according to claim 1, wherein the outlet portion includes fastening means for facilitating fastening of the fitting to a drainpipe. A plumbing fitting according to claim 14, wherein the fastening means includes a threaded shaft.
16. A plumbing fitting according to claim 15, wherein the fastening means further includes a threaded nut for engaging with the threaded shaft.
17. A plumbing fitting according to claim 14, wherein the fastening means further includes a tapered rubber washer.
18. A plumbing fitting according to claim 17, wherein the outlet portion includes a widened end.
19. A plumbing fitting according to claim 1 arranged for connection to a washing appliance in the form of a dishwasher or a washing machine. A plumbing fitting kit for use with a washing appliance, the fitting kit including: r a water trap having an inlet portion for receiving water from a sink and an 0 o outlet portion from which the water can drain; and a tubular fitting for fastening with the outlet portion and defining an inlet for receiving water from the washing appliance.
21. A plumbing fitting for use with washing appliances, the fitting including: an axial pipe defining a pair of opposed openings; and a tube extending from the pipe to which a washing appliance hose can be attached. o22. A plumbing fitting according to claim 21, wherein the tube extends obliquely from the pipe and has a barbed free end.
23. A plumbing fitting according to claim 21, wherein the axial pipe defines a threaded end.
24. A plumbing fitting according to claim 23, wherein the threaded end widens outward. A plumbing fitting according to claim 24, wherein the fitting includes a threaded nut.
26. A plumbing fitting according to claim 25, wherein the fitting also includes a tapered washer.
27. A plumbing fitting according to claim 21 wherein the axial pipe defines a narrowed end.
28. A plumbing fitting according to claim 27, wherein the narrowed end is inwardly stepped.
29. A plumbing fitting according to claim 28, wherein the fitting includes a resilient sleeve for engagement with the stepped end. c 30. A plumbing fitting according to claim 29, wherein the sleeve includes a O o plurality of outwardly extending ribs. ci
031. A resilient sleeve for engagement with a plumbing fitting, the sleeve 0 including a plurality of outwardly extending ribs.
32. A plumbing fitting for use with washing appliances, the fitting including: a bent pipe which is threaded at each end; and a tube extending from the pipe and for attaching with a washing appliance hose. 0
33. A plumbing fitting according to claim 32, wherein the bent pipe is generally U-shaped.
34. A plumbing fitting for use with a washing appliance, the plumbing fitting including: a sole water trap; and an inlet defined in the fitting downstream of the water trap and for receiving water from the washing appliance. Dated this 2 0 th Day of December 2005 HEATH RAINBOW AND DEBBIE JANE RAINBOW by our attorneys Eagar Buck Patent and Trade Mark Attorneys
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2005246923A AU2005246923A1 (en) | 2005-12-20 | 2005-12-20 | A plumbing fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2005246923A AU2005246923A1 (en) | 2005-12-20 | 2005-12-20 | A plumbing fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2005246923A1 true AU2005246923A1 (en) | 2007-07-05 |
Family
ID=38283749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2005246923A Abandoned AU2005246923A1 (en) | 2005-12-20 | 2005-12-20 | A plumbing fitting |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2005246923A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019226916A1 (en) * | 2018-05-23 | 2019-11-28 | Sloan Valve Company | Dialysate disposal apparatus |
-
2005
- 2005-12-20 AU AU2005246923A patent/AU2005246923A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019226916A1 (en) * | 2018-05-23 | 2019-11-28 | Sloan Valve Company | Dialysate disposal apparatus |
| WO2019226918A1 (en) * | 2018-05-23 | 2019-11-28 | Sloan Valve Company | Dialysate disposal apparatus |
| CN112334622A (en) * | 2018-05-23 | 2021-02-05 | 斯洛文阀门公司 | Dialysate treatment device |
| US11274425B2 (en) | 2018-05-23 | 2022-03-15 | Sloan Valve Company | Dialysate disposal apparatus |
| CN112334622B (en) * | 2018-05-23 | 2022-07-01 | 斯洛文阀门公司 | Dialysate treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK5 | Application lapsed section 142(2)(e) - patent request and compl. specification not accepted |