AU2009100093A4 - Self Flushing Leaf Filter - Google Patents
Self Flushing Leaf Filter Download PDFInfo
- Publication number
- AU2009100093A4 AU2009100093A4 AU2009100093A AU2009100093A AU2009100093A4 AU 2009100093 A4 AU2009100093 A4 AU 2009100093A4 AU 2009100093 A AU2009100093 A AU 2009100093A AU 2009100093 A AU2009100093 A AU 2009100093A AU 2009100093 A4 AU2009100093 A4 AU 2009100093A4
- Authority
- AU
- Australia
- Prior art keywords
- filter
- inlet
- filter assembly
- outlet
- adaptor
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Description
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION INNOVATION PATENT SELF FLUSHING LEAF FILTER The following statement is a full description of this invention, including the best method of performing it known to me: SELF FLUSHING LEAF FILTER Rainwater tank inlet strainers are prone to leaf build up as leaf bearing rainwater flows into the strainer, eventually the leaves cause a blockage of the strainer preventing the majority of the rainwater entering the rainwater tank. This is most common in rainwater systems where there is insufficient height between the stormwater piping and rainwater tank inlet for the fitment of vertically mounted leaf filtering devices.
This invention has been devised to provide a self flushing leaf filter to prevent the build up of leaves in a rain water tank inlet strainer caused by leaf bearing rainwater inflow.
S The Self Flushing Leaf Filter in accordance with this invention, comprises a filter assembly, an inlet adaptor and an outlet adaptor. The inlet and outlet adaptors are dimensioned to mate with typical stormwater downpipe and facilitate fitment and removal of the filter assembly. The inlet adaptor and outlet adaptor can be either affixed to the rainwater tank strainer or mounted above the rainwater tank strainer by any means with the filter assembly being mounted horizontally between the Inlet adaptor and outlet adaptor.
SThe filter assembly comprises of a main body and filter element. The main body is rectangular in cross section, having an inlet end, an outlet end and a cut away section on the underside of the main body which continues partially up the body sides and longitudinally along the majority of underside of main body. The filter element is affixed to the main body from the inside of the main body and completely covers the cutaway section of the main body. The main body is preferably made from PVC plastic, and the filter element is preferably aluminium or steel mesh or micro-screen materiel however, other materials can also be used. For example galvanised steel rectangular downpipe could be used as an alternate material for the main body and the filter element could be perforated sheet metal or plastic.
The inlet adaptor and outlet adaptor are dimensioned to fit typical rainwater downpipe to the outward facing ends. The outward facing inlet adaptor and outlet adaptor ends are typically circular in cross section and the inward facing ends of the inlet adaptor and outlet adaptor are rectangular in cross section. The inlet adaptor and outlet adaptor inward facing ends are dimensioned to provide means of retaining the filter assembly and facilitates the removal of the filter assembly by upward horizontal lifting of the filter assembly from the inlet and outlet adaptors and installation of the filter assembly by downward horizontal placement of the filter assembly between the inlet and outlet adaptors. The inlet adaptor and outlet adaptor are preferably made from PVC plastic however, other materials can also be used.
For example galvanised steel inlet and outlet adaptors could be used as an alternate to PVC.
This invention may be better understood by explanation of the operation of the invention with reference to the illustrations of the embodiments of the invention which:- 6 Figure 1 is a side view of the Self Flushing Leaf Filter comprising of the filter assembly fitted to the inlet and outlet adaptors.
Figure 2 is an exploded view of the Self Flushing Leaf Filter showing filter assembly and inlet and outlet adaptors.
Figure 3 is a side view of an example of typical installation of the self Flushing Leaf Filter above a rainwater tank inlet strainer. Means of securing the inlet and outlet adaptors has not been illustrated.
Leaf bearing rainwater is supplied to the Self Flushing Leaf Filter (comprising 1, 2 3) from the rainwater system piping flowing in a longitudinal direction through the inlet adaptor into the filter assembly with rainwater flow direction being toward the outlet adaptor The leaf bearing rainwater flowing into the filter assembly inlet enters the filter assembly where the rainwater falls through the filter element 3 and into the rainwater tank inlet strainer Leaves are carried by the rainwater in a direction toward the filter assembly outlet and are deposited on the filter element as the rainwater falls through the filter element As leaf bearing rainwater continues to flow into the filter assembly the quantity of leaves deposited on the filter element increases and can begin to restrict the flow of the rainwater through the Filter Assembly filter element If a restriction of rainwater flow through the filter element occurs due to leaf build up on the filter element rainwater flow into the filter assembly flushes the leaves along the filter element in a direction toward the filter assembly outlet The flushing of 0 the leaf build up along the filter element in the direction toward the filter assembly outlet exposes the filter element and the rainwater falls through the filter element into the rainwater tank inlet strainer Leaf build up which has been progressively flushed along the filter element in a direction toward the filter assembly outlet exits the Self Flushing Leaf Filter (comprising 1, 2 3) through the outlet adaptor An example of a typical installation of the Self Flushing Leaf Filter may consist of additional pipe and pipe joints connected to the outlet adaptor in a manner that facilitates the collection of flushed leaves in a receptacle such as a bucket.
Claims (4)
1. The Self Flushing Leaf Filter comprises of a filter assembly, inlet adaptor and outlet adaptor where the inlet and outlet adaptors facilitate fitment and removal of the filter assembly which is mounted horizontally between the inlet adaptor and outlet adaptor.
2. The Self Flushing Leaf Filter as claimed in claim 1, wherein the filter assembly as claimed in claim 1, comprises rectangular cross section main body having an inlet end, an outlet end and a cutaway section on the underside of the main body which continues partially up the body sides and longitudinally along the majority of underside of main body with a filter element affixed which completely covers the cutaway section.
3. The Self Flushing Leaf Filter as claimed in claim 1, wherein the filter assembly as claimed in claim 1 2, has a filter element as claimed in claim 2 that facilitates the separation of leaves from leaf bearing rainwater by the action of the rainwater falling through the filter element.
4. The Self Flushing Leaf Filter as claimed in claim 1, wherein the inlet adaptor and outlet adaptor as claimed in claim 1 are dimensioned to accept the fitment of typical rainwater downpipe on the outward facing ends with the inward facing ends of the inlet and outlet adaptor being rectangular in cross section to provide means of retaining the filter assembly and also facilitate removal of the filter assembly by upward horizontal lifting of the filter assembly from the inlet and outlet adaptors and installation of the filter assembly by downward horizontal placement of the filter assembly positioning the filter assembly between the inlet and outlet adaptors. The Self Flushing Leaf Filter as herein before described with reference to figures 1-3 of the accompanying drawings. Derek John Gibbins 2 February 2009
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2009100093A AU2009100093B4 (en) | 2009-02-03 | 2009-02-03 | Self Flushing Leaf Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2009100093A AU2009100093B4 (en) | 2009-02-03 | 2009-02-03 | Self Flushing Leaf Filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2009100093A4 true AU2009100093A4 (en) | 2009-03-12 |
| AU2009100093B4 AU2009100093B4 (en) | 2009-09-03 |
Family
ID=40456632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2009100093A Expired AU2009100093B4 (en) | 2009-02-03 | 2009-02-03 | Self Flushing Leaf Filter |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2009100093B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012101124B4 (en) * | 2012-07-26 | 2013-02-28 | Gibbins, Derek John Mr | Horizontal Flow Leaf Filter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014012288A1 (en) * | 2014-08-22 | 2016-02-25 | Wisy Ag Haustechniksysteme, Filtertechnik | Rainwater filter |
| CN104480994B (en) * | 2014-11-20 | 2016-03-30 | 陈磊 | A kind of square, urban green space rainwater-collecting reutilization system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19633987C2 (en) * | 1996-08-22 | 1999-08-12 | Herrmann Thilo Dipl Geooekolog | Distribution device for rainwater |
| DE19942240C2 (en) * | 1999-09-04 | 2001-10-31 | Robin Kunststoffprodukte Im Ro | Fine filter for a rainwater collection system |
| JP4395041B2 (en) * | 2004-10-07 | 2010-01-06 | 積水化学工業株式会社 | Rain water separator |
| AU2005202156B1 (en) * | 2004-11-08 | 2005-08-11 | Ludowici Environmental Pty Ltd | Filtration System |
-
2009
- 2009-02-03 AU AU2009100093A patent/AU2009100093B4/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012101124B4 (en) * | 2012-07-26 | 2013-02-28 | Gibbins, Derek John Mr | Horizontal Flow Leaf Filter |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2009100093B4 (en) | 2009-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| FF | Certified innovation patent | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |