DE10321908A1 - Electrically operated suction unit for a vacuum cleaner - Google Patents

Electrically operated suction unit for a vacuum cleaner Download PDF

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Publication number
DE10321908A1
DE10321908A1 DE2003121908 DE10321908A DE10321908A1 DE 10321908 A1 DE10321908 A1 DE 10321908A1 DE 2003121908 DE2003121908 DE 2003121908 DE 10321908 A DE10321908 A DE 10321908A DE 10321908 A1 DE10321908 A1 DE 10321908A1
Authority
DE
Germany
Prior art keywords
suction unit
filter
dust container
suction
dust
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.)
Withdrawn
Application number
DE2003121908
Other languages
German (de)
Inventor
Robert Schmitt
Original Assignee
Robert Schmitt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Schmitt filed Critical Robert Schmitt
Priority to DE2003121908 priority Critical patent/DE10321908A1/en
Publication of DE10321908A1 publication Critical patent/DE10321908A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1409Rigid filtering receptacles
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/12Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/12Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/38Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436Connecting plates, e.g. collars, end closures
    • A47L9/1445Connecting plates, e.g. collars, end closures with closure means

Abstract

The invention relates to an electrically operated suction unit (1) for a vacuum cleaner, which sucks in air (S) to be filtered via an intake pipe (2) and passes it through a filter (3) in such a way that the filter (3) at least partially during the filtering process a substantially vertical (V) upward air flow (4) is blown through. To improve hygiene when removing dust, the invention provides that the filter (3) is connected to a dust container (5), the dust container (5) being detachably connectable to the suction pipe (2) and the dust container (5) together with the filter (3) is interchangeably arranged in the suction unit (1).

Description

  • The The invention relates to an electrically operated suction unit for a Vacuum cleaner that draws air to be filtered through an intake pipe and passes it through a filter in such a way that the filter passes during the filtering process at least partially from a substantially vertical upward directed air flow is blown through.
  • As Alternative to the usual Mobile household vacuum cleaners use devices that are central have electrically operated suction unit. This is usually in the Basement of the building fixed on the wall or on the floor. The suction unit often has a housing with cylindrical Shape up in which, among other things, a motor unit and a filter unit are accommodated.
  • Such an electrically operated suction unit according to the prior art is shown in 1 shown. The suction unit 1 is on the floor 6 the space of a building (e.g. in the basement), so not mobile. The dusty air S to be filtered occurs in the lower area of the suction unit 1 via an intake pipe 2 into this one. In the upper area of the suction unit 1 is an engine 18 arranged of the dusty air S from the intake pipe 2 attracts through a filter 3 sucks and vertically upwards through a blow-off pipe 8th releases R as pure air.
  • The filter 3 is designed as a sack-like structure in this embodiment. With a solid line is in 1 the filter 3 shown in the position in which the suction unit 1 is not activated. The filter 3 in this case it sags down like a sack; Dust ST has accumulated in the bottom of the case 19 the suction unit 1 discontinued; this bottom area of the case 19 serves as a "waste container" in which dust ST collects.
  • Will the suction unit 1 activated, ie the motor 18 switched on, the filter 3 sucked into the position shown by dashed lines. The motor 18 causes an air flow 4 from the intake pipe 2 over the space of the filter 3 to the blow-off pipe 8th so the filter 3 during the filtering process at least partially from the vertically upward air flow 4 is blown through.
  • Because the filter 3 for the dust ST is not permeable, this is from the filter 3 retained; becomes the suction unit 1 then turned off and the filter drops 3 back to the position shown with a solid line, the dust ST down into the bottom of the housing 19 fall. Has enough dust ST in the bottom of the case 19 accumulated, it is removed. Such designs are sometimes referred to as cyclone filter systems.
  • Even though vacuum cleaner systems with a centrally arranged suction unit already guarantee a high level of hygiene, it has been found that the emptying of the accumulated dust from the suction unit brings with it a heavy load of dust particles, which causes problems especially for people who are at risk of allergies. When emptying the dust ST from the suction unit 1 In the case of known systems, the problem arises that, despite the greatest possible care, it cannot be ensured that dust particles get into the environment and cause annoyances or allergic reactions in the persons who carry out the cleaning or emptying process.
  • The The invention is therefore based on the object of a suction unit generic type so train that it's possible an emptying of the dust accumulated in the suction unit so that any leakage of dust is reliably excluded is. This is to ensure that people with allergies are also at risk the cleaning or emptying of the suction unit itself can make accumulated dust, without being exposed to the risk of dust particles in To come in contact. The solution to be developed should nevertheless ensure that the suction unit has a high efficiency, which is the suction power As. The solution should continue so executed be that the removal of the dust from the suction unit in very can be easily accomplished. Furthermore, it should be ensured that the suction unit with all its components is designed that there is an inexpensive design, so that it is also economical Adequate accounts are taken into account.
  • The solution this object by the invention is characterized in that the filter is connected to a dust container, the Dust receptacle detachable with the suction pipe can be connected and where the dust container together with the filter as a unit is interchangeably arranged in the suction unit.
  • According to this, it is provided that the electrically operated suction unit has a unit which consists of the dust container and the filter connected to it, which is interchangeably housed in the suction unit and can be replaced as a whole. As will be seen in detail later, this opens up the possibility for the first time to dispose of the dust collected in the suction unit in such a way that any contamination of the surroundings with dust is guaranteed to be avoided is closed. For the first time, a connection of the elements dust collection space ("waste container") and filter is provided as a single unit.
  • The the proposed concept is preferably used for suction units, which are part of built-in vacuum cleaner systems, so they are firmly on are arranged on the floor or on the wall of a building.
  • The Intake pipe preferably has an orientation when entering the suction unit perpendicular to the vertical. That means the intake pipe in this Trap enters the suction unit from the side; this is done with advantage in the lower area of the suction unit, which is to be understood here is that this is in the bottom half of the overall height the suction unit is the case.
  • According to one Another advantageous embodiment provides that the after air flow directed above inside the suction unit over a Exhaust pipe extending in the direction of the vertical from the suction unit is derived, with the blow-off pipe in the upper area of the Suction unit is located. This in turn means that the blow-off pipe in the upper half the height extension (Height) the suction unit is arranged; preferably it occurs vertically from the top of the suction unit.
  • The Dust receptacle can be as cuboid Box are trained. Exactly the same, of course, are alternative shapes possible, z. B. a cylindrical shape trained dust container.
  • The Filter, which is connected to the dust container, according to one Training an essentially pyramid-shaped or truncated pyramid-shaped configuration. This results in a particularly simple manufacturing option for the Unit consisting of dust container and filter.
  • Important is that the dust container and the filter is connected gas-tight to ensure that when removing the unit consisting of dust container and Do not filter any dust in the dust container Can leave unit. According to a preferred embodiment of the Invention are dust containers and filters glued together. Alternatively, however, can also be provided that the dust container and the filter with a detachable connection are interconnected. Here is a clip connection in particular, like they are in food storage containers are known in the household, which can be clipped onto the actual container have a gas-tight cover.
  • A further development of the invention provides that the upper end of the filter by a holding element, in particular by a fork-shaped one Sheet metal part is held in its working position.
  • The The system's dustproofness is further improved by that a sealing element in the area of the inlet of the intake pipe in the dust container is arranged. A latex membrane is preferably provided here, which is glued to the inner wall of the dust container or itself in the passage opening for the Intake pipe is located.
  • Very Means are also advantageously provided for ensuring can be that when removing the unit from the dust container and Filter from the suction unit is guaranteed to be attached to this unit no opening from which dust can escape. Here is by name to the opening thought that the dust container for the passage of the suction pipe must have.
  • Therefore a further development provides that the dust container closure means with which its opening can be closed to accommodate the intake pipe. In the Design of these closure means are of course economic considerations in the To keep an eye. Therefore, it is preferably provided that the closure means have a manually displaceable slide which is translationally displaceable in a guide guided is. The slide is preferably made of cardboard. advantageously, the slide has a safe and easy operation Recessed grip.
  • With this embodiment of an electrically operated suction unit Vacuum cleaner, especially a central vacuum system, is one possibility created the removal of the accumulated in the suction unit Dust so that it is guaranteed that no dust from the exception container leak and contaminate the environment.
  • The proposed design ("cyclone filter") also has the advantage that there is no compression of the Layer of dust on the filter, but this - due to of dust falling vertically downwards and accumulating in the floor area of the receptacle - largely remains free and thus the suction power of the system at a constantly high level Level is maintained.
  • Although the proposed concept is particularly suitable for central vacuum systems net, it is also usable in those mobile vacuum cleaners in which the air flow in the suction unit is at least partially directed vertically upwards, e.g. B. in industrial vacuum cleaners.
  • In the drawing is an embodiment of the Invention shown. Show it:
  • 1 schematically in the front view an electrically operated suction unit of a vacuum cleaner system, which works with a centrally and firmly arranged suction unit, according to the prior art,
  • 2 such a suction unit according to a possible configuration according to the invention,
  • 3 a perspective view of the unit consisting of dust container and filter and
  • 4 the section through the dust container in a detailed view, only the entry of the suction pipe into the dust container is outlined.
  • In 2 is the suction unit 1 of a vacuum cleaner system, which is stationary on the floor 6 a basement of a building is placed. The housing 19 the suction unit 1 is with an intake pipe 2 connected. Via the intake pipe 2 dusty air S is sucked in, in the suction unit 1 filtered and through a blow-off pipe 8th released as pure air R again.
  • The blow-off pipe 8th is connected to the environment via a pipe system, not shown, to where the exhaust air from the vacuum cleaner is directed.
  • The intake pipe 2 is, however, connected to a pipe system, not shown, which leads to air sockets, which are installed in the walls of different rooms in the building. A mobile suction pipe can be connected to the air sockets. Through the coupling process, the motor 18 the suction unit 1 activated. The end of the mobile suction pipe can suck in dirt and dust. This becomes a suction unit via the pipe system 1 passed, there in a filter 3 filtered out and the pure air R through the blow-off pipe 8th released to the environment.
  • How 2 is in the suction unit 1 , namely in their housing 19 , a unit consisting of a truncated pyramid-shaped filter 3 that with a dust container 5 is connected, which is cuboid. The course of the air flow is indicated by arrows 4 shown, which is with activated suction unit 1 , ie with the engine switched on 18 , results: The dusty air S is discharged through the intake pipe 2 into the suction unit 1 sucked in and into the dust container 5 directed. The "roof" of the dust container 5 is through the truncated pyramid-shaped filter 3 educated. The airflow 4 passes the filter 3 , in such a way that the filter 3 is at least partially blown by the air flow directed essentially upward in the vertical direction V during the filtering process. The airflow 4 with the pure air R then leaves through the blow-off pipe 8th the suction unit 1 ,
  • This configuration ensures that when the engine is switched off 18 the dust ST, which is initially on the inside of the "pyramid roof" of the filter 3 accumulates, falls down and settles in the bottom area of the dust container 5 collects.
  • The intake pipe 2 is via a suitable mechanism, e.g. B. by means of a bayonet lock, with the dust container 5 connected, ie the intake pipe 2 is detachable with the dust container 5 in contact. The intake pipe 2 is in the lower area 7 the suction unit 1 , The blow-off pipe 8th is in the upper range 9 the suction unit 1 arranged.
  • It is not shown that in the upper area 9 the suction unit 1 a compartment in which the engine is located 18 is housed. This room can be equipped with noise insulation elements, not shown, in order to operate the suction unit as quietly as possible 1 to ensure.
  • In 3 can be seen that the top end 10 of the filter 3 , ie the "tip of the truncated pyramid", of a holding element 11 is held in position in the form of a sheet metal fork. The top end 10 of the filter 3 can be done with a small plate 20 be covered. The plate 20 has such an extent that its safe grasping and holding by the appropriately dimensioned sheet metal fork 11 is guaranteed. The passage of the air flow 4 takes place through the four truncated pyramid faces.
  • 3 it can also be seen that in a corner area of the dust container 5 a slider 15 made of cardboard with a recessed grip 17 is arranged, the component of a closure means 13 to close the opening 14 (S. 4 ) through which the intake pipe 2 in the dust container 5 entry.
  • In 4 is first shown how the intake pipe 2 the wall of the dust container 5 passes through what the circular opening 14 is provided. To ensure the tightness between the intake pipe 2 and dust container 5 is a sealing element 12 provided in the form of a latex membrane. This is in the area of the opening 14 arranged so that when inserting the intake pipe 2 into the opening 14 of the dust container 5 the membrane 12 on the intake pipe 2 creates and thus a gas-tight seal is ensured.
  • In 4 It can also be seen that on the inside of the dust container 5 a tour 16 for the in 3 shown slide 15 is also arranged in 4 , but here with dashed lines. The slider 15 consists of a cardboard flap that is translational in the guide 16 can be moved.
  • For ergonomically simple actuation it is provided that the slide 15 in a recessed corner of the dust container 5 is arranged as in 3 can be seen.
  • So that the slider 15 with the intake pipe still connected 2 can be closed, a flange part ensures 21 - see 4 - for the intake pipe 2 not too far into the inside of the dust container 5 can reach into it.
  • To close the opening 14 of the dust container 5 with the intake pipe not yet removed 2 is in the recessed grip 17 (S. 3 ) intervened and the slide 15 moved in the direction of the arrow. this causes the slider 15 in the leadership 16 is moved so that the opening 14 is closed.
  • A conceivable alternative embodiment provides that an actuation of the Slider also over a corner of the dust container he follows. Then a slide made of sheet metal will be preferable, to ensure sufficient elastic properties.
  • Over a door 22 of the housing 19 the suction unit 1 (S. 2 ) can then be filled with dust ST unit from dust container 5 and filters 3 removed and replaced by a new unit.
  • This guarantees a contamination-free change of the dust container 5 or emptying the dust ST from the suction unit 1 guaranteed.
  • In some filter systems for vacuum cleaners, it is observed that to the extent that the dust-receiving space fills with dust, the suction power of the vacuum cleaner system drops because a layer of dust accumulates on the filter and is compressed by the air flow. This problem cannot arise with the proposed construction concept, since after the engine has been switched off 18 the suction unit 1 which is on the inside of the filter 3 Accumulated dust ST falls down by gravity and settles in the bottom area of the dust container 5 accumulates.
  • The unit consisting of a dust container 5 and filters 3 can be provided with handles, not shown, which allow easy handling. The dust container 5 preferably consists of sturdy cardboard; handles made of solid cardboard can be glued to this. As a filter 3 commercially available paper vacuum cleaner filters have proven their worth.
  • A An advantageous embodiment of the suction unit provides that in the floor area a compartment is provided (not shown) in the accessories of the vacuum cleaner can be accommodated.
  • 1
    suction unit
    2
    intake
    3
    filter
    4
    airflow
    5
    Dust receptacle
    6
    ground
    7
    lower Area of the suction unit
    8th
    blow-off
    9
    upper Area of the suction unit
    10
    upper End of the filter
    11
    retaining element (Sheet metal fork)
    12
    sealing element (Latex membrane)
    13
    closure means
    14
    opening
    15
    pusher
    16
    guide
    17
    grip
    18
    engine
    19
    casing
    20
    plate
    21
    flange
    22
    door
    V
    vertical
    S
    dusty air
    R
    pure air
    ST
    dust

Claims (17)

  1. Electrically operated suction unit ( 1 ) for a vacuum cleaner, the air to be filtered (S) via an intake pipe ( 2 ) and sucks them through a filter ( 3 ) directs that the filter ( 3 ) during the filtering process at least partially from an essentially vertically (V) upward air flow ( 4 ) is blown through, characterized in that the filter ( 3 ) with a dust container ( 5 ) is connected, whereby the dust container ( 5 ) with the suction pipe ( 2 ) is detachably connectable and the dust container ( 5 ) including filter ( 3 ) replaceable as a unit in the suction unit ( 1 ) is arranged.
  2. Suction unit according to claim 1, characterized in that it is fixed on the floor ( 6 ) or on the wall of a building.
  3. Suction unit according to claim 1 or 2, characterized in that the suction pipe ( 2 ) when entering the suction unit ( 1 ) has an orientation substantially perpendicular to the vertical (V).
  4. Suction unit according to claim 3, characterized in that the suction pipe ( 2 ) in the area below ( 7 ) of the suction unit ( 1 ) enters this.
  5. Suction unit according to one of claims 1 to 4, characterized in that the upward air flow ( 4 ) via a blow-off pipe extending in the direction of the vertical (V) ( 8th ) in the upper area ( 9 ) of the suction unit ( 1 ) is derived from this.
  6. Suction unit according to one of claims 1 to 5, characterized in that the dust container ( 5 ) is designed as a cuboid box.
  7. Suction unit according to one of claims 1 to 6, characterized in that the filter ( 3 ) has essentially the shape of a pyramid or a truncated pyramid.
  8. Suction unit according to one of claims 1 to 7, characterized in that the dust container ( 5 ) and the filter ( 3 ) are connected to each other in a gas-tight manner.
  9. Suction unit according to claim 8, characterized in that the dust container ( 5 ) and the filter ( 3 ) are glued together.
  10. Suction unit according to claim 8, characterized in that the dust container ( 5 ) and the filter ( 3 ) are connected to one another with a releasable connection, in particular with a clip connection.
  11. Suction unit according to one of claims 1 to 10, characterized in that the upper end ( 10 ) of the filter ( 3 ) from a holding element ( 11 ), in particular by a fork-shaped sheet metal part, is held in its working position.
  12. Suction unit according to one of claims 1 to 11, characterized in that a sealing element ( 12 ) in the area of the intake pipe inlet ( 2 ) in the dust container ( 5 ) is arranged.
  13. Suction unit according to claim 12, characterized in that the sealing element ( 12 ) is a latex membrane attached to the inner wall of the dust container ( 5 ) is glued.
  14. Suction unit according to one of claims 1 to 13, characterized in that the dust container ( 5 ) Closure means ( 13 ) with which its opening ( 14 ) for the intake pipe ( 2 ) can be closed.
  15. Suction unit according to claim 14, characterized in that the closure means ( 13 ) a slider that can be moved by hand ( 15 ) have in a guide ( 16 ) is translationally guided.
  16. Suction unit according to claim 15, characterized in that the slide ( 15 ) is made of cardboard.
  17. Suction unit according to claim 15 or 16, characterized in that the slide ( 15 ) a recessed grip ( 17 ) having.
DE2003121908 2003-05-13 2003-05-13 Electrically operated suction unit for a vacuum cleaner Withdrawn DE10321908A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003121908 DE10321908A1 (en) 2003-05-13 2003-05-13 Electrically operated suction unit for a vacuum cleaner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003121908 DE10321908A1 (en) 2003-05-13 2003-05-13 Electrically operated suction unit for a vacuum cleaner
PCT/DE2004/000841 WO2004100747A2 (en) 2003-05-13 2004-04-23 Electrically driven suction unit for a vacuum cleaner

Publications (1)

Publication Number Publication Date
DE10321908A1 true DE10321908A1 (en) 2004-12-09

Family

ID=33440852

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003121908 Withdrawn DE10321908A1 (en) 2003-05-13 2003-05-13 Electrically operated suction unit for a vacuum cleaner

Country Status (2)

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DE (1) DE10321908A1 (en)
WO (1) WO2004100747A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013000481U1 (en) * 2013-01-18 2013-01-25 Robert Schmitt Vacuum unit for a vacuum cleaner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856102A1 (en) * 1978-12-23 1980-07-10 Rommag P Woerwag & Co VACUUM CLEANER FOR COMMERCIAL AND HOUSEHOLD
DE2856103A1 (en) * 1978-12-23 1980-07-10 Rommag P Woerwag & Co VACUUM CLEANER FOR COMMERCIAL AND HOUSEHOLD WITH A REMOVABLE DUST COLLECTOR
DE19855906A1 (en) * 1998-12-03 2000-06-08 Bsh Bosch Siemens Hausgeraete vacuum cleaner
DE19911226A1 (en) * 1999-03-13 2000-09-14 Josef Kraenzle Vacuum cleaner for cleaning purposes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2242278A (en) * 1940-04-19 1941-05-20 Jr Edward H Yonkers Suction cleaner
US4591368A (en) * 1984-04-27 1986-05-27 Macduff James L Built-in vacuum system
SE9003125L (en) * 1990-10-01 1991-11-25 Akp Tekno Oy CENTRAL UNIT FOR CENTRAL DUST CLEANER
KR200280377Y1 (en) * 1998-08-20 2002-11-23 주식회사코네트인더스트리 Air filter for vacuum cleaner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856102A1 (en) * 1978-12-23 1980-07-10 Rommag P Woerwag & Co VACUUM CLEANER FOR COMMERCIAL AND HOUSEHOLD
DE2856103A1 (en) * 1978-12-23 1980-07-10 Rommag P Woerwag & Co VACUUM CLEANER FOR COMMERCIAL AND HOUSEHOLD WITH A REMOVABLE DUST COLLECTOR
DE19855906A1 (en) * 1998-12-03 2000-06-08 Bsh Bosch Siemens Hausgeraete vacuum cleaner
DE19911226A1 (en) * 1999-03-13 2000-09-14 Josef Kraenzle Vacuum cleaner for cleaning purposes

Also Published As

Publication number Publication date
WO2004100747A3 (en) 2005-01-13
WO2004100747A2 (en) 2004-11-25

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