EP1505899B1 - Liquid bath filter device for a vacuum cleaner apparatus - Google Patents
Liquid bath filter device for a vacuum cleaner apparatus Download PDFInfo
- Publication number
- EP1505899B1 EP1505899B1 EP02781544A EP02781544A EP1505899B1 EP 1505899 B1 EP1505899 B1 EP 1505899B1 EP 02781544 A EP02781544 A EP 02781544A EP 02781544 A EP02781544 A EP 02781544A EP 1505899 B1 EP1505899 B1 EP 1505899B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter device
- pipe
- zone
- water
- container
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000000428 dust Substances 0.000 claims abstract description 31
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000009825 accumulation Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000003197 gene knockdown Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/18—Liquid filters
- A47L9/183—Spray cleaning
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/18—Liquid filters
- A47L9/182—Separating by passing the air over a liquid bath
Definitions
- the present invention concerns a liquid bath filter device for a vacuum cleaner apparatus, comprising a container into which the particles of dust and dirt are sucked in by means of a suction motor, together with the so-called primary air, through a first pipe.
- the dust sucked in is hit by a spray of steam and then separated from the air by means of a spray of water, which makes it fall into the container.
- the filter device is designed so that the spray of water is caused by the mixture of water and so-called secondary clean air, which is introduced into the container through a second pipe, thanks to the depression present inside the container, or by means of ventilation means.
- the state of the art includes a liquid bath filter device for a vacuum cleaner apparatus which comprises an accumulation container connected with a suction motor, which sucks in dust and particles of dirt together with primary air through a first suction pipe.
- the device also comprises an assembly to generate a fluid arranged immediately downstream of the aperture of the suction pipe for primary air and able to generate a jet of steam, which hits the particles of dust and dirt to encourage them to fall into the accumulation container.
- This conventional device has the disadvantage, however, that some particles of dust and dirt may not be hit and made heavier enough by the steam sprayed, and so it is not always possible to ensure that they all fall completely into the container.
- EP-A-0.768.058 discloses a filter device, without the assembly to generate steam, connected to a fan which generates a flow of so-called secondary air, different from the flow of primary air.
- the flow of secondary air is introduced into the container through a second introduction pipe, arranged near the first introduction pipe.
- This second introduction pipe is connected to and coaxial with the inside of a water conveyor pipe, which sits lower in the liquid of the container.
- the upper open end of the conveyor pipe has a restriction which, due to the Venturi effect, makes the air passing in the second introduction pipe suck in water through the conveyor pipe and generate a vertical spray which hits the dust possibly sucked in with the flow of primary air.
- the dust is absorbed by the sprayed water and falls into the same container from which the conveyor pipe has sucked the water to be sprayed.
- This last conventional filter device has the disadvantage that it is always dirty water which is sprayed, mixed with the dust previously fallen. Consequently the conveyor pipe is continually subject to the risk of deposits of dirt and therefore of incrustations, which can impede an efficient suction and also definitively obstruct the passage of the water to be sprayed.
- Another disadvantage is due to the fact that, in this filter device, the second introduction pipe for the secondary air and the conveyor pipe are arranged coaxial and very near each other, so that they make it very difficult to perform the normal and necessary cleaning operations of the container.
- One purpose of the present invention is to achieve a liquid bath device in which, along a determinate suction path, the dust and particles of dirt are hit both by a spray of steam, and also by a spray of water which allows to guarantee that the particles of dust and dirt are all completely knocked down, even those which are not hit enough and knocked down by the fluid.
- Another purpose of the invention is to achieve a liquid bath filter device for a vacuum cleaner apparatus by means of which the dust sucked in, together with the primary air, inside a container, is knocked down continuously by means of a spray of water which is always clean, so as to prevent deposits of dirt or dust in the zones through which the water which forms the spray passes.
- a filter device for a vacuum cleaner apparatus, comprises a water accumulation container into which the primary air, sucked in by suction means through a suction pipe, is able to be introduced.
- first introduction means to introduce steam, which is able to knock down the dust into the container.
- the device comprises second introduction means to introduce secondary air arranged downstream of said first introduction means and able to introduce secondary air into the water contained in the container so as to generate a spray of water against the dust sucked in and already hit by the fluid.
- the second introduction means are able to make the secondary air bubble in the water.
- the secondary air is introduced into the container thanks to the depression generated by the suction means inside the accumulation container.
- the secondary air is able to be introduced into the accumulation container by means of means to generate secondary air, such as for example ventilation means.
- the container is divided into at least two zones, a first zone associated with the suction pipe, and a second zone, distinct from the first zone, in which clean water is able to be contained.
- Conveyor means are also provided to convey the clean water from the second zone to the first zone.
- the second introduction means are connected to the conveyor means to introduce the secondary air into the latter and thus cause a spray of clean water onto the dust sucked in.
- the accumulation container is divided into the two above-mentioned zones by means of separation means consisting for example of a wall, by means of which it is possible to keep the clean water and the dirty water separate.
- this wall is provided with a through hole, so as to keep a constant level of water in the two zones.
- the conveyor means for the clean water comprise, for example, a first elbow-shaped, open pipe, which is able to put the second zone in communication with the suction pipe which sucks in the primary air.
- the second introduction means to introduce secondary air comprise a second pipe which, on one side, is open towards the outside of the accumulation container and, on the other side, is connected with the first pipe.
- Another purpose of the present invention is to achieve a filter device which is easy to dis-assemble in order to carry out normal cleaning operations.
- the container comprises at least a base tank, where the water is contained, and a cover able to close the base tank.
- the cover comprises, in a single piece, the first open pipe and the wall, whereas the base tank comprises, in a single piece, the second introduction pipe to introduce secondary air. Therefore, by lifting the cover with respect to the base tank, the second introduction pipe to introduce the secondary air is dis-assembled simply and quickly from the first open pipe for the clean water, to facilitate possible cleaning or maintenance operations on the container.
- a liquid bath filter device 10 for a vacuum cleaner apparatus, of a conventional type and not shown in the drawings, comprises a container 18 consisting of a base tank 12 able to contain water and an upper portion, or cover 16.
- the filter device 10 comprises a suction motor 15 connected to the container by means of a pipe 13 and an inlet pipe 19 through which dust 20 and other solid particles are sucked in.
- a pipe 50 In correspondence with the inlet pipe 19 there is a pipe 50, connected to a water steam generator, not shown in the drawings.
- a jet of steam is able to be introduced through the pipe 50 against the particles of dust 20 to allow a first absorption of water therein, in order to facilitate and optimize their fall into the base tank 12.
- the air and possible dust 20 which are not filtered in the liquid bath are subsequently made to pass, through a grid 25a of the interchangeable type, arranged in the outlet pipe 13 and functioning as a dry filter.
- the cover 16 comprises an introduction pipe 34, open above towards the outside and able to be arranged vertically inside the container 18, to allow the so-called secondary air to be introduced.
- the secondary air is introduced thanks to the depression generated by the suction motor 15 inside the container 18.
- the secondary air is introduced by means of a fan 21.
- the lower end 34a of the introduction pipe 34 is immersed in the water so as to make the secondary air bubble therein and create a spray 46 of water against the dust 20.
- An adjustable platelet 51 is also arranged between the introduction pipe 34 and the introduction pipe 50 to introduce steam, in order to further deflect the particles 20 made heavy by the steam towards the base tank 12.
- the cover 16 also comprises, in a single piece, a vertical separating wall 22 able to divide the container 18 into two different zones.
- a first zone 24 is able to contain dirty water, that is, into which the dust 20 and other solid particles arriving from the inlet pipe 19 are able to be deposited, whereas a second zone 26 contains only clean water.
- the separating wall 22 is substantially impermeable to water, except in correspondence with a lower portion where there is a through hole 23, made in proximity with a bottom wall 27 of the container 18, and in correspondence with an upper portion where there are apertures 30, partly closed by deflectors 32. It should be noted that the clean water is kept separate from the dirty water because the dust 20 is deposited in a zone below the through hole 23.
- the through hole 23 is able to let the water pass between the first zone 24 and the second zone 26 so as to keep a constant level in the two zones, whereas the apertures 30 allow the air to flow from the first zone 24 to the second zone 26 as far as a cage 25 which contains a float 42, connected to the outlet pipe 13.
- the base tank 12 comprises, in a single piece, a conveyor pipe 36 for clean water, elbow-shaped and comprising a vertical portion 36a and a horizontal portion 36b, arranged astride the separating wall 22.
- the horizontal portion 36b is open towards the second zone 26, to convey the clean water into the first zone 24.
- the introduction pipe 34 is solid with the base tank 12 and is able to be inserted between mating housing walls 37, arranged around a corresponding cavity 38 made in the cover 16.
- the introduction pipe 34 is arranged in the second zone 26 and is connected to the horizontal portion 36b of the conveyor pipe 36.
- the liquid bath filter device 10 functions as follows.
- the secondary air passes into the clean water contained in the conveyor pipe 36 and causes turbulence and bubbling, sufficient to generate the spray 46 in proximity with the inlet pipe 19, so as to further capture the dust 20, already hit by the steam.
- the dust 20 therefore falls due to gravity onto the bottom 27 of the base tank 12, but only into the first zone 24.
- the filter device 10 has the advantage that the spray 46 consists only of clean water and that the inner surfaces of the conveyor pipe 36 and of the introduction pipe 34 are not subject to incrustations due to possible deposits of dust 20 or other solid particles, since the latter are able to be deposited only on the bottom of the first zone 24.
- the inlet pipe 19 of the container extends as far as the upper end of the vertical portion 36a of the conveyor pipe 36. In this way the secondary air, arriving from the introduction pipe 34, "directs" the spray 46 of clean water directly against the particles of dust 20.
- the vertical portion 36a of the conveyor pipe 36 moreover, exceeds in height a pre-defined maximum level L max of water inside the container 18, to prevent the dirty water contained in the first zone 24 from entering accidentally into the conveyor pipe 36 and mixing with the clean water.
- the cover 116 which comprises the conveyor pipe 136 and the separating wall 122, which is able to be inserted between mating housing walls 137 made on the bottom 127 of the base tank 112.
- the cover 116 also comprises a bell element 140, able to deflect the flow of secondary air into the conveyor pipe 136.
- the introduction pipe 134 is arranged in the first zone 24 and is able to be arranged inside the bell element 140 through a through cavity 139 made in the horizontal portion 136b of the conveyor pipe 136, equipped with a sealing ring 141, of the O-Ring type.
- the secondary air passes in a path defined between the introduction pipe 134 and the bell element 140 and between the latter and the pipe 136.
- the introduction pipe 134 is able to be coupled in the through cavity 139 by means of conical coupling.
- a further advantage of the filter device is that it is easy to clean or maintain the container 18, simply by disassembling the cover 16, 116 of the base tank 12, 112.
- fig. 4 shows the dis-assembly of the filter device 110 in accordance with this last form of embodiment.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Of Particles Using Liquids (AREA)
- Filtration Of Liquid (AREA)
- Devices For Medical Bathing And Washing (AREA)
Abstract
Description
- The present invention concerns a liquid bath filter device for a vacuum cleaner apparatus, comprising a container into which the particles of dust and dirt are sucked in by means of a suction motor, together with the so-called primary air, through a first pipe. The dust sucked in is hit by a spray of steam and then separated from the air by means of a spray of water, which makes it fall into the container. The filter device is designed so that the spray of water is caused by the mixture of water and so-called secondary clean air, which is introduced into the container through a second pipe, thanks to the depression present inside the container, or by means of ventilation means.
- The state of the art includes a liquid bath filter device for a vacuum cleaner apparatus which comprises an accumulation container connected with a suction motor, which sucks in dust and particles of dirt together with primary air through a first suction pipe. The device also comprises an assembly to generate a fluid arranged immediately downstream of the aperture of the suction pipe for primary air and able to generate a jet of steam, which hits the particles of dust and dirt to encourage them to fall into the accumulation container.
- This conventional device has the disadvantage, however, that some particles of dust and dirt may not be hit and made heavier enough by the steam sprayed, and so it is not always possible to ensure that they all fall completely into the container.
- The state of the art also includes
EP-A-0.768.058 which discloses a filter device, without the assembly to generate steam, connected to a fan which generates a flow of so-called secondary air, different from the flow of primary air. - To be more exact, the flow of secondary air is introduced into the container through a second introduction pipe, arranged near the first introduction pipe. This second introduction pipe is connected to and coaxial with the inside of a water conveyor pipe, which sits lower in the liquid of the container. The upper open end of the conveyor pipe has a restriction which, due to the Venturi effect, makes the air passing in the second introduction pipe suck in water through the conveyor pipe and generate a vertical spray which hits the dust possibly sucked in with the flow of primary air. The dust is absorbed by the sprayed water and falls into the same container from which the conveyor pipe has sucked the water to be sprayed.
- This last conventional filter device has the disadvantage that it is always dirty water which is sprayed, mixed with the dust previously fallen. Consequently the conveyor pipe is continually subject to the risk of deposits of dirt and therefore of incrustations, which can impede an efficient suction and also definitively obstruct the passage of the water to be sprayed.
- Another disadvantage is due to the fact that, in this filter device, the second introduction pipe for the secondary air and the conveyor pipe are arranged coaxial and very near each other, so that they make it very difficult to perform the normal and necessary cleaning operations of the container.
- The Applicant has devised and embodied the present invention to overcome these shortcomings of the state of the art, and to obtain further advantages.
- The present invention is set forth and characterized in the main claim, while the dependent claims describe other innovative characteristics of the invention.
- One purpose of the present invention is to achieve a liquid bath device in which, along a determinate suction path, the dust and particles of dirt are hit both by a spray of steam, and also by a spray of water which allows to guarantee that the particles of dust and dirt are all completely knocked down, even those which are not hit enough and knocked down by the fluid.
- Another purpose of the invention is to achieve a liquid bath filter device for a vacuum cleaner apparatus by means of which the dust sucked in, together with the primary air, inside a container, is knocked down continuously by means of a spray of water which is always clean, so as to prevent deposits of dirt or dust in the zones through which the water which forms the spray passes.
- In accordance with these purposes, a filter device according to the present invention, for a vacuum cleaner apparatus, comprises a water accumulation container into which the primary air, sucked in by suction means through a suction pipe, is able to be introduced. In correspondence with the suction pipe, there are first introduction means to introduce steam, which is able to knock down the dust into the container. According to a characteristic of the present invention, the device comprises second introduction means to introduce secondary air arranged downstream of said first introduction means and able to introduce secondary air into the water contained in the container so as to generate a spray of water against the dust sucked in and already hit by the fluid. The second introduction means are able to make the secondary air bubble in the water.
- In one embodiment of the present invention, the secondary air is introduced into the container thanks to the depression generated by the suction means inside the accumulation container.
- According to a variant, the secondary air is able to be introduced into the accumulation container by means of means to generate secondary air, such as for example ventilation means.
- According to a preferential form of embodiment of the invention, the container is divided into at least two zones, a first zone associated with the suction pipe, and a second zone, distinct from the first zone, in which clean water is able to be contained. Conveyor means are also provided to convey the clean water from the second zone to the first zone.
- The second introduction means are connected to the conveyor means to introduce the secondary air into the latter and thus cause a spray of clean water onto the dust sucked in.
- According to another characteristic of the present invention, the accumulation container is divided into the two above-mentioned zones by means of separation means consisting for example of a wall, by means of which it is possible to keep the clean water and the dirty water separate.
- In a preferential embodiment this wall is provided with a through hole, so as to keep a constant level of water in the two zones.
- In a first embodiment, the conveyor means for the clean water comprise, for example, a first elbow-shaped, open pipe, which is able to put the second zone in communication with the suction pipe which sucks in the primary air. The second introduction means to introduce secondary air comprise a second pipe which, on one side, is open towards the outside of the accumulation container and, on the other side, is connected with the first pipe.
- In this way the secondary air is sucked inside the container and is bubbled in the clean water present in the first open pipe, so as to generate the spray to knock down the dust.
- Another purpose of the present invention is to achieve a filter device which is easy to dis-assemble in order to carry out normal cleaning operations.
- In accordance with this purpose, in a preferred form of embodiment, the container comprises at least a base tank, where the water is contained, and a cover able to close the base tank. The cover comprises, in a single piece, the first open pipe and the wall, whereas the base tank comprises, in a single piece, the second introduction pipe to introduce secondary air. Therefore, by lifting the cover with respect to the base tank, the second introduction pipe to introduce the secondary air is dis-assembled simply and quickly from the first open pipe for the clean water, to facilitate possible cleaning or maintenance operations on the container.
- These and other characteristics of the present invention will become apparent from the following description of a preferential form of embodiment, given as a non-restrictive example with reference to the attached drawings wherein:
-
fig. 1 shows a general diagram of a filter device according to the present invention; -
fig. 2 is a section of a first embodiment of the filter device infig. 1 ; -
fig. 3 is a section of a second embodiment of the filter device infig. 1 ; -
fig. 4 is a section view of the filter device infig. 3 in its dis-assembled condition - With reference to
fig. 1 , a liquidbath filter device 10 according to the present invention, for a vacuum cleaner apparatus, of a conventional type and not shown in the drawings, comprises acontainer 18 consisting of abase tank 12 able to contain water and an upper portion, orcover 16. - The
filter device 10 comprises asuction motor 15 connected to the container by means of apipe 13 and aninlet pipe 19 through whichdust 20 and other solid particles are sucked in. - In correspondence with the
inlet pipe 19 there is apipe 50, connected to a water steam generator, not shown in the drawings. A jet of steam is able to be introduced through thepipe 50 against the particles ofdust 20 to allow a first absorption of water therein, in order to facilitate and optimize their fall into thebase tank 12. - The air and
possible dust 20 which are not filtered in the liquid bath are subsequently made to pass, through agrid 25a of the interchangeable type, arranged in theoutlet pipe 13 and functioning as a dry filter. - The
cover 16 comprises anintroduction pipe 34, open above towards the outside and able to be arranged vertically inside thecontainer 18, to allow the so-called secondary air to be introduced. To be more exact, the secondary air is introduced thanks to the depression generated by thesuction motor 15 inside thecontainer 18. - According to a variant, the secondary air is introduced by means of a
fan 21. - The
lower end 34a of theintroduction pipe 34 is immersed in the water so as to make the secondary air bubble therein and create aspray 46 of water against thedust 20. - In this way, any
possible dust 20 hit both by a jet of steam and also by thespray 46 of water and fall completely into thebase tank 12. - An
adjustable platelet 51 is also arranged between theintroduction pipe 34 and theintroduction pipe 50 to introduce steam, in order to further deflect theparticles 20 made heavy by the steam towards thebase tank 12. - In a preferential form of embodiment shown in
fig. 2 , which is an improved version of thedevice 10 as described heretofore, thecover 16 also comprises, in a single piece, a vertical separatingwall 22 able to divide thecontainer 18 into two different zones. - A
first zone 24 is able to contain dirty water, that is, into which thedust 20 and other solid particles arriving from theinlet pipe 19 are able to be deposited, whereas asecond zone 26 contains only clean water. - The separating
wall 22 is substantially impermeable to water, except in correspondence with a lower portion where there is a throughhole 23, made in proximity with abottom wall 27 of thecontainer 18, and in correspondence with an upper portion where there areapertures 30, partly closed bydeflectors 32. It should be noted that the clean water is kept separate from the dirty water because thedust 20 is deposited in a zone below the throughhole 23. - The through
hole 23 is able to let the water pass between thefirst zone 24 and thesecond zone 26 so as to keep a constant level in the two zones, whereas theapertures 30 allow the air to flow from thefirst zone 24 to thesecond zone 26 as far as acage 25 which contains afloat 42, connected to theoutlet pipe 13. - The
base tank 12 comprises, in a single piece, aconveyor pipe 36 for clean water, elbow-shaped and comprising avertical portion 36a and ahorizontal portion 36b, arranged astride the separatingwall 22. To be more exact, thehorizontal portion 36b is open towards thesecond zone 26, to convey the clean water into thefirst zone 24. - The
introduction pipe 34 is solid with thebase tank 12 and is able to be inserted betweenmating housing walls 37, arranged around acorresponding cavity 38 made in thecover 16. - The
introduction pipe 34 is arranged in thesecond zone 26 and is connected to thehorizontal portion 36b of theconveyor pipe 36. - The liquid
bath filter device 10 according to this form of embodiment functions as follows. - The secondary air passes into the clean water contained in the
conveyor pipe 36 and causes turbulence and bubbling, sufficient to generate thespray 46 in proximity with theinlet pipe 19, so as to further capture thedust 20, already hit by the steam. - The
dust 20 therefore falls due to gravity onto the bottom 27 of thebase tank 12, but only into thefirst zone 24. - The
filter device 10 has the advantage that thespray 46 consists only of clean water and that the inner surfaces of theconveyor pipe 36 and of theintroduction pipe 34 are not subject to incrustations due to possible deposits ofdust 20 or other solid particles, since the latter are able to be deposited only on the bottom of thefirst zone 24. - It should also be noted that the
inlet pipe 19 of the container extends as far as the upper end of thevertical portion 36a of theconveyor pipe 36. In this way the secondary air, arriving from theintroduction pipe 34, "directs" thespray 46 of clean water directly against the particles ofdust 20. - The
vertical portion 36a of theconveyor pipe 36, moreover, exceeds in height a pre-defined maximum level Lmax of water inside thecontainer 18, to prevent the dirty water contained in thefirst zone 24 from entering accidentally into theconveyor pipe 36 and mixing with the clean water. - In fact, for safety's sake, downstream of the liquid
bath filter device 10, there is thefloat 42 of a conventional type, able to block thesuction motor 15 when the level of water inside thecontainer 18 has reached said Lmax. - Above the through
hole 23, on the contrary, there is defined a minimum level Lmin below which thefilter device 10 does not function because the level of water is under theconveyor pipe 36. - According to another form of embodiment of the invention, as shown in
figs. 3 and4 , it is thecover 116 which comprises theconveyor pipe 136 and the separatingwall 122, which is able to be inserted betweenmating housing walls 137 made on the bottom 127 of thebase tank 112. - The
cover 116 also comprises abell element 140, able to deflect the flow of secondary air into theconveyor pipe 136. - The
introduction pipe 134 is arranged in thefirst zone 24 and is able to be arranged inside thebell element 140 through a throughcavity 139 made in thehorizontal portion 136b of theconveyor pipe 136, equipped with a sealing ring 141, of the O-Ring type. - In this embodiment, the secondary air passes in a path defined between the
introduction pipe 134 and thebell element 140 and between the latter and thepipe 136. - According to a variant not shown in the drawings, the
introduction pipe 134 is able to be coupled in the throughcavity 139 by means of conical coupling. - A further advantage of the filter device is that it is easy to clean or maintain the
container 18, simply by disassembling thecover base tank - To be more exact,
fig. 4 shows the dis-assembly of thefilter device 110 in accordance with this last form of embodiment. With the removal of thecover 116, the separatingwall 122, theconveyor pipe 136 and thebell element 140 are all dis-assembled from theintroduction pipe 134 and thebase tank 112. - It is clear however that modifications and/or additions of parts may be made to the
filter device
Claims (16)
- - Filter device for a vacuum cleaner apparatus, comprising a water accumulation container (18) into which primary air is able to be introduced, sucked in by suction means (15) through a suction pipe (19, 119) and first introduction means (50) to introduce a fluid which is able to encourage the dust (20) to fall into said container (18), characterized in that said fluid introduced by said first introduction means (50) is a liquid in the form of steam and in that second introduction means (34, 134) are arranged downstream of said first introduction means (50) and are able to introduce secondary air into the water contained in said container (18) to cause said secondary air to bubble in said water so generating a spray of water (46) onto the dust (20) sucked in and introduced together with said primary air and already hit by said liquid in the form of steam.
- - Filter device as in claim 1, characterized in that said container (18) is divided into at least two zones, of which a first zone (24) is associated with said suction pipe (19, 119) and a second zone (26), different from said first zone (24), is able to contain clean water, conveyor means (36, 136) being provided to convey said clean water from said second zone (26) to said first zone (24), said second introduction means (34, 134) being connected to said conveyor means (36, 136) in order to introduce said secondary air into said conveyor means (36, 136) to cause said spray (46) of clean water.
- - Filter device as in claim 2, characterized in that said conveyor means comprise a first open pipe (36, 136) able to put said second zone (26) in communication with said suction pipe (19, 119) of primary air.
- - Filter device as in claim 3, characterized in that said first open pipe (36, 136) is elbow-shaped.
- - Filter device as in claim 3 or 4, characterized in that said second introduction means of secondary air comprise a second introduction pipe (34, 134) which, on one side, is connected with said first open pipe (36, 136) and, on the other side, is open towards the outside of said container (18).
- - Filter device as in claim 5, characterized in that said second introduction pipe (34) is arranged in said second zone (26) and is directly connected to said first open pipe (36).
- - Filter device as in claim 5, characterized in that said second introduction pipe (134) is arranged in said first zone (24) and that deflector means (140) are arranged in correspondence with the upper end of said second introduction pipe (134) in order to deflect the flow of said secondary air towards said first open pipe (136).
- - Filter device as in claim 7, characterized in that said means to deflect the flow comprise a bell (140), a dome or similar.
- - Filter device as in any claim from 3 to 8 inclusive, characterized in that a vertical portion (36a, 136a) of said first open pipe (36, 136) for the clean water extends in height beyond a pre-determined level of water (Lmax) in correspondence with which the functioning of said suction means (15) is able to be blocked.
- - Filter device as in any claim from 2 to 9 inclusive, characterized in that said two zones (24, 26) are separated by means of a separating wall (22, 122).
- - Filter device as in claim 10, characterized in that in said separating wall (22, 122) a through hole (23) is made, able to allow to maintain a constant level of water between said first zone (24) and said second zone (26).
- - Filter device as in any claim hereinbefore, characterized in that said container (18) comprises at least a base tank (12, 112) and covering means (16, 116) able to close said base tank (12, 112).
- - Filter device as in claim 12, characterized in that said covering means comprise a cover (16, 116) able to be removably attached to said base tank (12, 112).
- - Filter device as in claims 7, 10 and 13, characterized in that said cover (116) comprises, in a single piece, said first open pipe (136), said separating wall (122) and said deflector means (140) to deflect the flow of secondary air.
- - Filter device as in claims 7 and 12, characterized in that said base tank (112) comprises, in a single piece, said second introduction pipe (134).
- - Filter device as in claims 6, 10 and 12, characterized in that said base tank (12) comprises, in a single piece, said second introduction pipe (34), said first open pipe (36) and said separating wall (22), said first open pipe (36) being arranged astride said separating wall (22).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2002UD000102A ITUD20020102A1 (en) | 2002-05-15 | 2002-05-15 | LIQUID BATH FILTERING DEVICE FOR A VACUUM CLEANER |
ITUD20020102U | 2002-05-15 | ||
PCT/IB2002/004822 WO2003096864A1 (en) | 2002-05-15 | 2002-11-19 | Liquid bath filter device for a vacuum cleaner apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1505899A1 EP1505899A1 (en) | 2005-02-16 |
EP1505899B1 true EP1505899B1 (en) | 2008-05-28 |
Family
ID=11460708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02781544A Expired - Lifetime EP1505899B1 (en) | 2002-05-15 | 2002-11-19 | Liquid bath filter device for a vacuum cleaner apparatus |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1505899B1 (en) |
AT (1) | ATE396640T1 (en) |
AU (1) | AU2002348924A1 (en) |
DE (1) | DE60226902D1 (en) |
IT (1) | ITUD20020102A1 (en) |
WO (1) | WO2003096864A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100842371B1 (en) | 2007-04-24 | 2008-06-30 | 유지혜 | Suction device for cleaner |
ITUD20080043A1 (en) * | 2008-02-29 | 2009-09-01 | Unitekno S P A | PRE-FILTERING DEVICE FOR A CLEANING EQUIPMENT, SUCTION DEVICE INCLUDING SUCH FILTERING DEVICE AND ITS PRE-FILTERING PROCEDURE |
KR20110021553A (en) * | 2009-08-26 | 2011-03-04 | 삼성광주전자 주식회사 | Wet type dust collecting apparatus for vacuum cleaner |
TR200908122U (en) * | 2009-10-27 | 2009-11-23 | Senur Elektri̇k Motorlari San. Ve Ti̇c. A.Ş. | Vacuum cleaner with horizontal water filter. |
CN101904719B (en) * | 2010-08-06 | 2012-07-04 | 刘志洪 | Water filter device of dust absorber |
CN112998575B (en) * | 2021-02-25 | 2022-04-19 | 焦作大学 | Informationized building construction is with portable cooling dust device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE213932C (en) * | 1910-02-04 | 1909-10-09 | ||
JPH07116096A (en) * | 1993-10-21 | 1995-05-09 | Akai Electric Co Ltd | Vacuum cleaner |
EP0768058B1 (en) * | 1995-10-13 | 2000-04-26 | T.P.A. IMPEX S.p.A. | Improved machine for household cleaning |
ITVI980080A1 (en) * | 1998-04-23 | 1999-10-23 | Vittorio Capraro | ASPIRATOR DEVICE |
IT1310887B1 (en) * | 1999-08-04 | 2002-02-22 | Commital Sami Spa | SUCTION CLEANING APPARATUS |
-
2002
- 2002-05-15 IT IT2002UD000102A patent/ITUD20020102A1/en unknown
- 2002-11-19 AT AT02781544T patent/ATE396640T1/en not_active IP Right Cessation
- 2002-11-19 DE DE60226902T patent/DE60226902D1/en not_active Expired - Fee Related
- 2002-11-19 EP EP02781544A patent/EP1505899B1/en not_active Expired - Lifetime
- 2002-11-19 WO PCT/IB2002/004822 patent/WO2003096864A1/en active IP Right Grant
- 2002-11-19 AU AU2002348924A patent/AU2002348924A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
ITUD20020102A0 (en) | 2002-05-15 |
WO2003096864A1 (en) | 2003-11-27 |
EP1505899A1 (en) | 2005-02-16 |
ITUD20020102A1 (en) | 2003-11-17 |
ATE396640T1 (en) | 2008-06-15 |
AU2002348924A1 (en) | 2003-12-02 |
DE60226902D1 (en) | 2008-07-10 |
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