AU2017232204A1 - A filter - Google Patents
A filter Download PDFInfo
- Publication number
- AU2017232204A1 AU2017232204A1 AU2017232204A AU2017232204A AU2017232204A1 AU 2017232204 A1 AU2017232204 A1 AU 2017232204A1 AU 2017232204 A AU2017232204 A AU 2017232204A AU 2017232204 A AU2017232204 A AU 2017232204A AU 2017232204 A1 AU2017232204 A1 AU 2017232204A1
- Authority
- AU
- Australia
- Prior art keywords
- vehicle
- air stream
- filter system
- particulate matter
- blower unit
- 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
- 239000013618 particulate matter Substances 0.000 claims abstract description 65
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 230000007935 neutral effect Effects 0.000 claims abstract description 15
- 238000007664 blowing Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
A filter system to reduce ingress of particulate matter 5 into a vehicle, the filter system comprises: a blower unit that blows an air stream into the vehicle to generate a neutral or positive pressure environment in the vehicle to reduce ingress of particulate matter into the vehicle; and 10 a filtration unit that is arranged relative to the blower unit to remove particulate matter from the air stream entering the vehicle via the blower unit, such that the air stream, with a reduced particulate matter concentration, enters the vehicle via the blower unit. 9502559_1 (GHMatters) P103065.AU.1 1112 16 N t 22 Figure 1 Figure 2
Description
The present invention relates to a filter system for reducing ingress of particulate matter into a vehicle, for example a caravan.
BACKGROUND OF THE INVENTION
Caravans are commonly used to provide a mobile home for people travelling to rural areas such as the countryside and often have openings such as vents and hatches to provide ventilation to users. However, an unintended consequence of having these vents and hatches is that the caravan may travel on unpaved or dirt roads during the journey, which often generates dust clouds. These dust clouds typically results in the dust entering the caravan through gaps or openings on the vehicle, for example, air vents, gaps between the doors and the vehicle body.
When this happens, dust coats the inside of the vehicle and creates a dusty environment within the caravan. One can appreciate that this may pose a health hazard to users, particularly users with respiratory illnesses, and damage furniture or appliances.
Removing openings from the vehicle is not a solution to this problem because the lack of ventilation may cause suffocation and discomfort to users in the caravan.
Some caravans install seals to reduce gaps and to cover openings on the vehicle to minimise the ingress of dust. However, the effectiveness of these seals markedly decreases when they are coated with the dust.
As such, it is desirable to provide a filter system that
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 reduces ingress of dust, particles into the caravan while ventilating the caravan.
SUMMARY OF THE INVENTION
In one form, the present invention provides a filter system to reduce ingress of particulate matter into a vehicle, the filter system comprises:
a blower unit that blows an air stream into the vehicle to generate a neutral or positive pressure environment in the vehicle to reduce ingress of particulate matter into the vehicle; and a filtration unit that is arranged relative to the blower unit to remove particulate matter from the air stream entering the vehicle via the blower unit, such that the air stream, with a reduced particulate matter concentration, enters the vehicle via the blower unit.
The filter system may ventilate the vehicle and reduce ingress of particulate matter into the vehicle.
The filter system does not provide heating or cooling of the air stream.
In this specification, particulate matter includes dust, sand, soil and dirt particles.
In this specification, the term vehicle includes a driven vehicle, or may be a trailing vehicle such as a caravan. In this regard, the term vehicle will be understood to include within its scope both driven and trailing, or auxiliary, vehicles.
The pressure difference between the inside and outside of the vehicle may result in the movement of air in or out of the vehicle to achieve equilibrium. This may affect the amount of particulate matter entering and exiting the
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 vehicle. For example, when there is negative pressure inside a vehicle (compared to the outside of the vehicle), air outside the vehicle would have a tendency to enter the vehicle through openings on the vehicle to achieve equilibrium. This is likely to result in particulate matter, entrained in the air stream, entering the vehicle. Conversely, when there is positive pressure inside the vehicle (compared to outside of the vehicle), air inside the vehicle would have a tendency to exit the vehicle to achieve equilibrium.
In one particular example, the Venturi effect may occur around vents on the vehicle when air travels across these vents when the vehicle is moving. The Venturi effect may also occur when air moves across vents on a stationary vehicle.
This effect generates a negative pressure within the vehicle which in turn increases the likelihood that particulate matter would enter the vehicle through openings on the vehicle.
The filter system generates a neutral or positive pressure environment within the vehicle to reduce the likelihood of particulate matter entering the vehicle.
The filter system includes a blower unit which ventilates the vehicle by blowing air into the vehicle which displaces the air within the vehicle through vents. This allows circulation of air through the vehicle and increases the comfort level of the users.
The blower unit also increases the pressure within the vehicle to generate a neutral or positive pressure environment inside the vehicle. Suitably, the blower unit generates a positive pressure within the vehicle. This reduces the ingress of particulate matter, which may be
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 entrained in the air, into the vehicle.
The blower unit may be a positive displacement blower. Typically, a positive displacement blower delivers a constant air flow independent of pressure. This facilitates the generation of a neutral or positive pressure within the vehicle because the blower unit can act against the pressure within the vehicle to displace the air within the vehicle. In contrast, a non-positive displacement blower typically has reduced efficiency with increasing pressure. This reduces its ability to displace air within the vehicle to generate a positive pressure environment.
The blower unit may operate at a pressure ratio ranging from 1.1 to 1.2. The pressure ratio defines the ratio of the discharge pressure over the suction pressure.
Suitably, the blower unit is a JABSCO J70-204 blower.
The blower unit may blow the air stream into the vehicle at a flowrate that is sufficient to displace air within the vehicle to generate a neutral or positive pressure environment. Suitably, the blower unit blows the air stream into the vehicle at a flowrate ranging from 5-8 m3/min of air. More suitably, the flowrate is about 7 m3/min of air. Even more suitably, the flowrate is 7.1 m3/min of air.
The blower unit may operate on a 12V power supply.
The blower unit may generate a pressure within the vehicle that is at least equal to atmospheric pressure. Suitably, the blow unit generates a pressure within the vehicle that is greater than atmospheric pressure.
The filter system may include a control system to operate the blower unit.
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2017232204 22 Sep 2017
The control system may include a user interface to control the air stream flowrate and/or pressure ratio of the blower unit.
The filter system may include a pressure sensor for detecting pressure within the vehicle. Suitably the pressure sensor is in electrical communication with the control system such that the control system operates the blower depending on an output received from the pressure sensor.
Typically, air from the atmosphere is blown into the vehicle by the blower unit. However, a skilled person would appreciate that atmospheric air under the environmental conditions that the vehicle is exposed to may have a high concentration of particulate matter.
In order to ensure that the air pumped into the vehicle has a reduced concentration or is substantially free of particulate matter, the filtration unit removes particulate matter from the air blown into the vehicle. This may provide ventilation and a substantially dust free environment within the vehicle.
The filtration unit may remove at least 70wt% of the particulate matter in the air stream entering the vehicle via the blower unit. Suitably, the filtration unit removes at least 80wt% of the particulate matter in the air stream entering the vehicle via the blower unit. Suitably, the filtration unit removes at least 90wt% of the particulate matter in the air stream entering the vehicle via the blower unit. More suitably, the filtration unit removes at least 99wt% of the particulate matter in the air stream entering the vehicle via the blower unit.
The filtration unit may be arranged before or after the
9502559_1 (GHMatters) P103065.AU.1 β
2017232204 22 Sep 2017 blower unit. However, arranging the filtration unit before the blower unit may prevent a build-up of particulate matter in the blower unit to prolong its life.
The filtration unit may comprise an inlet for receiving the air and an outlet that is connectable to the blower unit. Alternatively, the inlet of the filtration unit may be connectable to the blower unit.
Both arrangements enable the filter system to remove particulate matter from the air stream entering the vehicle.
The filtration unit may include a filter for removing the particulate matter from the air entering the vehicle. The filter may be a Ryco™ filter.
The filter may have a rating of 10 microns at 90%. The filter may be compliant with the Australian Standards.
More suitably, the filter is a Ryco™ A1560 filter.
The filtration unit may include a catch to facilitate access to the filter for cleaning or replacement.
Suitably, the catch is a quick release lock.
The filter system may include a ventilator. The ventilator allows air to enter and exit the vehicle to provide circulation. The ventilator may be positioned on the roof of the vehicle. The ventilator may include an integral internal hose flange to accommodate a blower hose.
Suitably, the ventilator is a Seabird RWB 125 ventilator.
The ventilator may include a convoluted passage to increase the residence time of the air in the ventilator.
The passage may include at least one bend to force the air to change its direction of travel in the passage. This may facilitate separation of water or moisture from air
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 entering the filter system.
The ventilator may include a drainage outlet to remove water or moisture removed from the air.
The ventilator may include a baffle plate. The baffle plate may reduce the amount of water or moisture entering the filter system. Although not bound by theory, it is believed that the baffle plate directs the moisture towards the drainage outlet when air flows over the plate.
The ventilator may include a drainage outlet to remove water separated from the air. This minimises water from entering the filter system.
The filter system may be activated based on one or more conditions of the vehicle. For example, the filter system may be connected to the ignition source of the vehicle such that the filter system is activated when the vehicle is turned on. Alternatively, the filter system is connected to the ignition source of the towing vehicle such that the filter system is activated when the towing vehicle is turned on.
In an embodiment, there is provided a caravan including the filter system described above.
In another embodiment, there is provided a method of reducing ingress of particulate matter into a vehicle using a filter system including a blower unit and a filtration unit, including:
removing particulate matter from an air stream using a filtration unit to form an air stream having a reduced particulate matter concentration; and blowing the air stream having a reduced particulate matter concentration into the vehicle to generate a neutral or positive pressure environment using a blower unit.
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017
The step of removing particulate matter from an air stream may include operating the filtration unit to remove at least 90% of particles having a diameter of 10 microns or more from the air stream.
The step of removing particulate matter from an air stream may include operating the filtration unit to remove at least 70wt% of the particulate matter from the air stream.
Suitably, the step of removing particulate matter from an air stream includes operating the filtration unit to remove at least 80wt% of the particulate matter from the air stream. More suitably, the step of removing particulate matter from an air stream includes operating the filtration unit to remove at least 90wt% of the particulate matter from the air stream.
The step of blowing the air stream having a reduced particulate matter concentration into the vehicle may include operating the blower unit at a pressure ratio ranging from 1.1 to 1.2.
The step of blowing the air stream having a reduced particulate matter concentration into the vehicle may include operating the blower unit on a 12V power supply.
The step of blowing the air stream having a reduced particulate matter concentration into the vehicle may include operating the blower unit to blow the air stream into the vehicle to displace air in the vehicle. Suitably, the step of blowing the air stream having a reduced particulate matter concentration into the vehicle may include operating the blower unit to continuously blow the air stream into the vehicle to displace air in the vehicle.
The step of blowing the air stream having a reduced
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 particulate matter concentration into the vehicle may include operating the blower unit to blow the air stream into the vehicle at a flowrate ranging from 5-8 m3/min of air. Suitably, the step of blowing the air stream having a reduced particulate matter concentration into the vehicle includes operating the blower unit to blow the air stream into the vehicle at a flowrate of about 7 m3/min of air. Suitably, the step of blowing the air stream having a reduced particulate matter concentration into the vehicle includes operating the blower unit to blow the air stream into the vehicle at a flowrate of 7.1 m3/min of air.
The method of reducing ingress of particulate matter into a vehicle may include a step of activating the filter system based on one or more conditions of the vehicle.
The method of reducing ingress of particulate matter into a vehicle may include operating a control system to receive an output from a pressure sensor; and operating the blower depending on the output from the pressure sensor.
BRIEF DESCRIPTION OF DRAWINGS
A preferred embodiment of the present invention is hereinafter described by way of example only, with reference to the accompanying drawings, wherein:
Figure 1 is a cross-sectional view of a filter system according to one form of the present invention installed on a caravan.
Figure 2 is a cross-sectional view of the roof ventilator of the filter system in Figure 1.
Figure 3 is an isometric view of a filter system according to one form of the present invention.
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017
Figure 4 is an isometric view of the blower unit of the filter system in Figure 3.
Figure 5 is an isometric view of the filtration unit of the filter system in Figure 3.
Figure 6 is an isometric view of a disassembled filtration unit of Figure 5.
DETAILED DESCRIPTION
One aspect of the filter system as defined by the invention is marked as 10 in Figures 1 and 3.
Figure 1 illustrates a filter system 10 installed on a vehicle in the form of a caravan 11. Caravan 11 has vents 12 and 14, and hatch 16 to provide ventilation to occupants in the caravan 11.
The filter system 10 comprises a blower unit 18 (Figure 4) that blows an air stream into the caravan 11 to generate a neutral or a positive pressure environment inside the caravan 11 and a filtration unit 20 (Figures 5 and 6) that is connected to the blower unit 18 to remove particulate matter, such as for example dust particles, from the air stream entering the caravan 11 via the blower unit 18. The arrows illustrated in Figures 1 and 2 indicate the direction of air flow through the caravan 11.
The filtration unit 20 (Figure 5) includes an inlet 22 for receiving the air stream and an outlet 24 that is connected to the blower unit 18. In this arrangement, the particulate matter is removed from the air stream by the filtration unit 20 before the air stream enters the blower unit 18.
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2017232204 22 Sep 2017
The filtration unit 20 also includes a filter rated at 10 microns at 90% (Figure 6) . Suitably, a Ryco™ A1560 filter is used.
The filter system 10 is installed on a ventilator 26 (see Figure 2) which is positioned on the roof of the caravan
11. Suitably, the ventilator is a Seabird RWB 125 ventilator.
The ventilator 26 has a convoluted passage 28 include a bend 30 which causes the air stream entering the ventilator 26 to reverse direction when travelling in the passage 28. This increases the residence time of the air in the ventilator 26 and facilitates separation of water or moisture from the air stream travelling through the ventilator 26. Drainage outlet 38 allows water and moisture separated from the air stream to be drained away (Figure 2). This allows substantially dry air to enter the filter system 10. Figures 3 and 4 illustrate the flow of air through the filter system. Specifically, arrow A indicates the flow of the air stream into the filtration unit 20. Dust is removed from the air stream by the filtration unit 20 before the air stream travels through the blower unit 18 which directs the air stream into the caravan 11 (as indicated by arrow B).
The ventilator 26 also includes a baffle plate 32 for reducing the amount of water or moisture entering the filter system and/or the caravan 11. Although not bound by theory, it is believed that baffle plate directs the moisture towards the drainage outlet when air flows over the plate.
Typically, when the caravan 11 is in motion, a negative pressure within the caravan 11 is generated due to the
Venturi effect as air moves across vents 12 and 14, and hatch 16 (when open). This causes ingress of dirt
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 entrained within the air into the caravan 11 when the air enters the caravan 11 to equalise the pressure.
The filter system 10 generates a neutral or positive 5 pressure environment inside the caravan 11 by blowing air into the caravan 11. Ideally, the filter system 10 displaces air within the caravan 11 and generates a positive pressure environment in the caravan 11. This minimises the ingress of dust entrained in the air from entering the caravan 11.
Advantageously, maintaining a positive pressure environment allows dust within the caravan to be expelled through gaps and openings in the caravan including vents
12 and 14, and hatch 16.
The blower unit 18 is in the form of a positive displacement blower which delivers a constant air flow independent of pressure (Figure 4). The blower unit 18 blows air into the caravan at a flowrate of 7.1 m3/min of air, and a pressure ratio ranging from 1.1 to 1.2 to displace air within the caravan. Suitably, the blower unit is a JABSCO J70-204 blower.
The filter system 10 may include a control system with a user interface to control the air stream flowrate and/or pressure ratio of the blower unit 18. = The filter system may include a pressure sensor, in electrical communication with the control system, for detecting pressure within the vehicle. In this embodiment, the control system operates the blower 18 depending on an output received from the pressure sensor to generate a neutral or a positive pressure environment inside the caravan 11.
The filtration unit 20 includes a filter 34 which removes dust particles from the air stream entering the ventilator before the air stream enters the inlet of the blower
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017
18. In this embodiment, at least 99wt% of the dust particles is removed from the air stream.
The filtration unit 20 includes quick release locks 36 5 that enable easy access to the filter for cleaning or replacement.
The filter system 10 is connected to the ignition source of a towing vehicle (not shown) such that the filter system 10 is activated when the towing vehicle is turned on. As such, in operation, the filter system 10 is operational when the caravan 11 is being towed to generate a neutral or positive pressure environment when in motion. In an alternative embodiment, the filter system 10 is connected to an independent power source to remain operational when the ignition source is turned off.
The filter system may include a pressure sensor for detecting pressure within the vehicle. Suitably the pressure sensor is in electrical communication with the control system such that the control system operates the blower depending on an output received from the pressure sensor.
As such, there is provided a filter system that reduces ingress of dust particles into the caravan while ventilating the caravan. This is achieved by two mechanisms. The first mechanism is by ventilating the caravan by blowing an air stream into the caravan at a flowrate that is sufficient to generate a neutral or positive pressure environment within the caravan. This reduces ingress of air (and entrained dust particles) into the caravan through openings in the caravan. The second mechanism is by removing dust particles from the air blown into the caravan to generate the neutral or positive pressure environment by the blower unit. This provides a substantially dust-free air stream blown into the caravan.
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017
Claims (5)
1/5
2017232204 22 Sep 2017
1. A filter system to reduce ingress of particulate matter into a vehicle, the filter system comprises:
5 a blower unit that blows an air stream into the vehicle to generate a neutral or positive pressure environment in the vehicle to reduce ingress of particulate matter into the vehicle; and a filtration unit that is arranged relative to the 10 blower unit to remove particulate matter from the air stream entering the vehicle via the blower unit, such that the air stream, with a reduced particulate matter concentration, enters the vehicle via the blower unit.
15 2. The filter system according to claim 1, wherein the blower unit is a positive displacement blower.
2/5
2017232204 22 Sep 2017
Figure 3
3/5
2017232204 22 Sep 2017
A
Figure 4
3. The filter system according to either claim 1 or 2, wherein the blower unit operates at a pressure ratio
20 ranging from 1.1 to 1.2.
4/5
2017232204 22 Sep 2017
Figure 5
4. The filter system according to any one of the preceding claims, wherein the blower unit blows the air stream into the vehicle at a flowrate ranging from 5-8
25 m3/min of air.
5. The filter system according to any one of the preceding claims, wherein the filtration unit removes at least 70wt% of the particulate matter in the air stream
30 entering the vehicle via the blower unit.
6. The filter system according to any one of the preceding claims, wherein the filtration unit is arranged before the blower unit.
7. The filter system according to any one of the preceding claims, wherein the filtration unit includes a
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 filter having a rating of 10 microns at 90%.
8. The filter system according to any one of the preceding claims, including a ventilator.
9. The filter system according to claim 8, wherein the ventilator includes a convoluted passage to increase the residence time of the air in the ventilator.
10 10. The filter system according to either claim 8 or 9, wherein the ventilator includes a drainage outlet to remove water or moisture removed from the air.
11. The filter system according to any one of claims 8 to
15 10, wherein the ventilator includes a baffle plate.
12. The filter system according to any one of claims 8 to
11, wherein the ventilator includes a drainage outlet to remove water separated from the air.
13. The filter system according to any one of claims 8 to
12, wherein the filter system is activated based on one or more conditions of the vehicle.
25 14. The filter system according to any one of the preceding claims including a control system to operate the blower unit.
15. The filter system according claim 14, wherein the
30 control system include a user interface to control the air stream flowrate and/or pressure ratio of the blower unit.
16. The filter system according to either claim 14 or 15, including a pressure sensor for detecting pressure within
35 the vehicle.
17. The filter system according to claim 16, wherein the
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 pressure sensor is in electrical communication with the control system such that the control system operates the blower depending on an output received from the pressure sensor.
18. A caravan including the filter system according to any one of the preceding claims.
19. A method of reducing ingress of particulate matter
10 into a vehicle using a filter system including a blower unit and a filtration unit, including:
removing particulate matter from an air stream using a filtration unit to form an air stream having a reduced particulate matter concentration; and
15 blowing the air stream having a reduced particulate matter concentration into the vehicle to generate a neutral or positive pressure environment using a blower unit.
20. The method according to claim 19, wherein the step of
20 removing particulate matter from an air stream using a filtration unit includes operating the filtration unit to remove at least 90% of particles having a diameter of 10 microns or more from the air stream.
25 21. The method according to either claim 19 or 20, wherein the step of removing particulate matter from an air stream using a filtration unit includes operating the filtration unit to remove at least 70wt% of the particulate matter from the air stream.
22. The method according to any one of claims 19 to 21, wherein the step of blowing the air stream having a reduced particulate matter concentration into the vehicle includes operating the blower unit at a pressure ratio
35 ranging from 1.1 to 1.2.
23. The method according to any one of claims 19 to 22,
9502559_1 (GHMatters) P103065.AU.1
2017232204 22 Sep 2017 wherein the step of blowing the air stream having a reduced particulate matter concentration into the vehicle includes operating the blower unit on a 12V power supply.
5 24. The method according to any one of claims 19 to 23, wherein the step of blowing the air stream having a reduced particulate matter concentration into the vehicle includes operating the blower unit to blow the air stream into the vehicle to displace air in the vehicle.
25. The method according to any one of claims 19 to 24, wherein the step of blowing the air stream having a reduced particulate matter concentration into the vehicle includes operating the blower unit to continuously blow
15 the air stream into the vehicle to displace air in the vehicle.
26. The method according to any one of claims 19 to 25, wherein the step of blowing the air stream having a
20 reduced particulate matter concentration into the vehicle includes operating the blower unit to blow the air stream into the vehicle at a flowrate ranging from 5-8 m3/min of air.
25 27. The method according to any one of claims 19 to 26, including operating a control system to receive an output from a pressure sensor; and operating the blower depending on the output from the pressure sensor.
9502559_1 (GHMatters) P103065.AU.1
5/5
2017232204 22 Sep 2017 \
\
Figure 6
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2016903829A AU2016903829A0 (en) | 2016-09-22 | A filter | |
| AU2016903829 | 2016-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2017232204A1 true AU2017232204A1 (en) | 2018-04-05 |
Family
ID=61767950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2017232204A Abandoned AU2017232204A1 (en) | 2016-09-22 | 2017-09-22 | A filter |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2017232204A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11247537B2 (en) | 2016-02-29 | 2022-02-15 | Dometic Sweden Ab | Positive pressure vent for a vehicle |
| USD956940S1 (en) | 2019-06-05 | 2022-07-05 | Dometic Sweden Ab | Filter housing |
| US11511603B2 (en) | 2019-05-27 | 2022-11-29 | Dometic Sweden Ab | Dust reduction device |
-
2017
- 2017-09-22 AU AU2017232204A patent/AU2017232204A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11247537B2 (en) | 2016-02-29 | 2022-02-15 | Dometic Sweden Ab | Positive pressure vent for a vehicle |
| US11511603B2 (en) | 2019-05-27 | 2022-11-29 | Dometic Sweden Ab | Dust reduction device |
| USD956940S1 (en) | 2019-06-05 | 2022-07-05 | Dometic Sweden Ab | Filter housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC1 | Assignment before grant (sect. 113) |
Owner name: SPACEM PTY LTD Free format text: FORMER APPLICANT(S): ELITE CARAVANS (AUSTRALIA) PTY LTD |
|
| MK4 | Application lapsed section 142(2)(d) - no continuation fee paid for the application |