US2860725A - Mechanism in the cover of a vacuum cleaner for rendering the cleaner inoperative if no bag is in place - Google Patents

Mechanism in the cover of a vacuum cleaner for rendering the cleaner inoperative if no bag is in place Download PDF

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Publication number
US2860725A
US2860725A US625087A US62508756A US2860725A US 2860725 A US2860725 A US 2860725A US 625087 A US625087 A US 625087A US 62508756 A US62508756 A US 62508756A US 2860725 A US2860725 A US 2860725A
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US
United States
Prior art keywords
bag
cover
cleaner
casing
latch
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
Application number
US625087A
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English (en)
Inventor
Allen P Cawl
John J Kowalewski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Corp
Original Assignee
Electrolux Corp
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 Electrolux Corp filed Critical Electrolux Corp
Priority to US625087A priority Critical patent/US2860725A/en
Priority to US621638A priority patent/US2860724A/en
Priority to GB35099/57A priority patent/GB810369A/en
Priority to NL222363A priority patent/NL98562C/xx
Priority to CH357842D priority patent/CH357842A/de
Priority to FR1194432D priority patent/FR1194432A/fr
Application granted granted Critical
Publication of US2860725A publication Critical patent/US2860725A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1472—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters combined with security means, e.g. for preventing use, e.g. in case of absence of the bag
    • 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
    • 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
    • A47L9/19—Means for monitoring filtering operation
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/65—Emergency or safety

Definitions

  • Our invention relates to vacuum cleaners and more particularly to vacuum cleaners of the tank or canister type in'which the dust bag is concealed from view within the casing of the cleaner.
  • the removable cover of the cleaner may be "so constructed that it does not lseal the dust bag compartment, the aforementioned cardboard disc being relied 'upon vforV this purpose. Consequently, if nodustibag is in position within the cleaner, the dust bag compartment will lnot be sealed, but will be open to the atmosphere so that if the motor-fan unit is operated relatively clean air will be drawn directly into the dust bag compartment and little or no flow will take place through the hose, inasmuch as the latter path offers ⁇ a much greaterl resistanceto ow. Consequently, while the motor-fan unit may be operated, no dirt will be drawn into the cleaner.
  • Such arrangements are shown in Patent No. 2,567,221 issued September 11, 1951, to G. E. Lofgren and Patent No. 2,641,330 issued lune 19, 1953, to Lofgren, Lampe and Ferraris.
  • our invention contemplates a member movably "mounted on the front cover and so arranged that if no bag is in position a portion of this member is biased into the path of travel of the latch which removably secures the front ⁇ cover to the casing of the cleaner so that the latch is prevented from engagement, which in turn assures that the front cover will not remain closed.
  • This movable member is so arranged that, it either a cloth bag or a disposable bag is in position, a portion of the member contacts such bag so as toi'rnove the member out of the path of travel of the latch, thus permitting the ⁇ latter to function in the normal manner to secure the cover in place.
  • Fig. 1 is a view partlyin cross-sectionof'avacuurn cleaner including one embodiment ofcurinvention"'and showing the cleaner with "a "disposable bag in Aplace
  • Fig. 2 isV a cross-sectionalview similar tot Figli, but on a larger scale;
  • Fig. 3 is a cross-sectional view similarto Fig. 2, but showing the cleaner with a cloth bag'in position; p
  • Fig. 4 is a view similar to' Figs. 2 and 3, butshowingno bag in the cleaner;
  • a cover or closure member 24 is pivotally and removably securedto the ring 22 by meansof a hinge26. ⁇ "A
  • ⁇ latch member Sil is pivotally mounted at 32 in the cover diametrically opposite from the hinge 26and is provided with a spring 34 urging' it in a counter-clockwiserdirec tion, as viewed in Figs. ⁇ 1 through 4.
  • the u'pperp'artof ring 22 is provided with a pair of ears'- 36 ⁇ extending ror-4 wardlytherefrom and between which is disposed ⁇ a keeper in the form of a bar or pin 38.
  • the latch 30 is in engagement with the pin 3S ⁇ so as to hold the cover closed.
  • Latch 30 has a button portion40 which extends outm wardly through an opening in the cover 24 so as to be, ⁇ accessible for manual operation.
  • the latch 30 also has.. attached thereto an arm 42 which is engaged by a stern 44 connected to a diaphragm 46 which constitutes onewall of a diaphragm chamber 4S formed in the cover.
  • the interior or chamber 48 is connected by means of a conduit 5t) with a space S2 within the housing of adif- 'erential pressure responsive'device designated generally by reference character 54.
  • This device includes a pressure responsive diaphragm 56, the right-hand side of which, as' viewed in Fig. l, is; subjected through a conduit dito the pressure existing within an inlet conduit 6@ carried by the front cover.
  • the other side of the diaphragm 56 is subjected to the suction produced by the motor-fan unit ⁇ and communicated through the dust bag compartment 16, a short conduit 62 carried by the ring 22 and a conduit 64 in the cover 24.
  • the ends of conduits 62 and 64 are in sealing relationship with each other when the cover 24 is closed.
  • the diaphragm 56 is biased to the right by means of a spring 66.
  • ⁇ A valve member 68 is slidably mounted in the device 54 and is attached to a valve stern 70 which is disposed so as to be contactedV by the diaphragm when the latter moves to the ⁇ left.
  • a spring 72 tends to seat the valve 68.
  • high suction from the'fan ⁇ will be communicated to the left side or the diaphragm 56 and, if the valve 68 is opened by movement of the diaphragm to the left, this suction will be communicated through the space 52 and the conduit 50 to the diaphragm chamber 48, thus moving the diaphragm 46 to the left so as to pivot the latch 30 in a clockwise direction to thereby disengage it from the keeper 38.
  • the latch 30, diaphragm chamber 48 and control devices 54 are enclosed within the cover 24 by a plate 73.
  • This vacuum cleaner is designed to employ either a disposable paper dust bag or cloth bag which may be emptied and used repeatedly.
  • a disposable bag designated generally by reference character 74.
  • This bag includes a substantially rigidv cardboard disc 76 to which is secured a bag portion 78 made of pervious paper so that the air may pass therethrough while the dust is retainedv therein.
  • the disc 76 is formed with a centrally located aperture 79 through which extends the inlet conduit 60 when the cover is closed.
  • Plate 73 of the cover preferably carries a gasket member 80 which surrounds the inlet conduit 60 and bears against the disc 76 so as to hold the outer periphery or flange portion of the latter against a seat formed by a gasket 82 carried by the ring 22.
  • conduit 60 is formed as one part of a separable coupling so that a flexible hose carrying the other part of the coupling may be connected thereto. Operation of the motor-fan unit 12 serves to draw air in through the hose and conduit 12 to the interior of the dust bag, which separates from the air any dirt entrained therewith, the clean air passing through the pervious material of the bag.
  • bracket 84 Secured as by rivets 83 to the upper side of housing 10 is a bracket 84, which is disposed between the casing and a trim piece 85.
  • This bracket is formed with a rear upwardly extending arm 90 having a slot formed therein.
  • a rod 94 extends through the slot and through an aligned opening formed in ring 22.
  • a coil spring 96 is disposed around rod 94 and is confined between arm 90 and a collar 'or ange 98 formed on the rod. Consequently, this .spring tends to move the rod 94 to the left, as viewed in Fig. 1.
  • the right-hand end of the rod 94 is connected ,to the operating member 100 of an electric switch, the
  • the upper part of plate 73 is formed with a pocket or depression 102 in which is movably mounted structure comprising a lever member 104 pivotally mounted at 106.
  • a spring 108 is provided which tends to pivot the lever 104 in a counter-clockwise direction.
  • the lower arm of the lever 104 is so positioned that it will strike the disc 76 of the dust separating member 74 if the latter is in position within the casing, as is shown in Figs. l yand 2.
  • This causes the lever to be pivoted in clockwise direction ⁇ .against the force of spring 108 so that the upper arm ⁇ of the lever is removed from the path of travel of the latch member 30. Consequently, as viewed in Figs. l and 2, the latch member is in engagement with pin 38 so as to secure the cover 24 in closed position.
  • a cloth bag 110 is shown in position within the vacuum cleaner.
  • This bag includes a cloth portion secured to a metal rim 112, which in turn has an outwardly extending flange portion 114 carrying a gasket 116.
  • the gasket 116 is disposed in sealing relationship between the plate 73 and the gasket 82.
  • the lower arm of the pivoted lever 104 contacts the gasket 116 of the cloth dust bag so as to pivot the lever in a clockwise direction against the force of spring 108, thereby removing the upper end of the arm from the path of travel of the latch 30. Consequently, under these conditions the latch is able to engage the pin 38 so as to secure the cover in closed position.
  • Fig. 4 the cleaner is shown with no bag therein and under these conditions the spring 108 is able to hold the pivoted arm 104 in a position such that the upper end of the arm is disposed in the path of travel of the latch member 30.
  • the relative strengths of the springs 108 and 34 are such that the pivoted arm is able to move the latch member to the position shown in Fig. 4, wherein it is out of engagement with the pin 38 and consequently there is nothing to secure the cover 24 in closed position.
  • the cover may be moved to this position by hand, as soon as the hand is removed the rod 94 under the force of spring 96 immediately opens the cover.
  • the cover may be moved to this position by hand, as soon as the hand is removed the rod 94 under the force of spring 96 immediately opens the cover.
  • Movement of the rod 94 assures that the switch 100 is in open position and therefore it is impossible to operate the vacuum cleaner. Even'if the rod 94 were not connected to the switch so that the motor could be operated, this would cause only clean air to be drawn in through the open end of the housing 10, and no dust-ladened air would be drawn in through the hose.
  • the movably mounted structure comprises a pivoted lever 120 mounted by means of a bracket 121 on the inner surface of plate 73 and in the space enclosed within the cover 24.
  • This lever is provided with a spring 122 which tends to pivot the lever in a clockwise direction, as viewed in Fig. 8.
  • a portion of the structure comprising the end 124 of this lever is disposed so as to be in the path of travel of the arm 42 of the latch member 30, the spring 122 being of suiiicient strength to pivot the latch member against the force of its spring 34.
  • Another portion of the structure comprising the end 126 of the lever 120 extends through a slot formed in the wall 73 so as to strike either the cardboard disc of a disposable dust bag or the ring 112 of the cloth dust bag 110, as shown in Fig. 5.
  • the lever is pivoted so that its end 124 is out of the path of travel of the arm 42, thus permitting the latch 30 to engage the pin 38, as illustrated inFig. 5.
  • the spring 122 is able to pivot the end 124 of the lever 120 against the arm 42 of the latch 30,
  • a casing having an opening, a dust separating member receivable in said casing, a closure for said opening, 'a latch member movably mounted on said closure for releasably securing the latter in closed position, structure movably mounted on said closure, and means for biasing one portion of said structure into the path of movement of said latch member to prevent the latter from latching, another portion of said structure contacting said dust separating member when the latter is in place in said casing for holding 'the first-mentioned portion out of said path of movement.
  • a casing having an opening, a dust separating member receivable in said casing, a closure for said opening, a latch member pivotally mounted on said closure for releasably securing the latter in closed position, a lever pivotally mounted on said closure, and means or biasing one portion of said lever into the path of travel of said latch member to prevent the latter from l'atching, another portion of said lever contacting said dust separating member when the latter is in place in said casing for holding the first-mentioned portion out of said path of travel.
  • a casing having an' opening, -a dust separating member receivable in said casing, a keeper secured to said casing, a closure for said opening, a latch member pivotally mounted on said closure, spring means for urging said latch into engagement with said keeper for releasably securing said closure in closed position, movable means mounted on said closure, and spring means for biasing one portion of said movable means into the path of travel of said latch member, the relative strengths of said spring means being such that said lever prevents said latch member from engaging said keeper, another portion of said movable means contacting said dust separating member when the latter is in place in said casing for holding the first-mentioned portion out of said path of travel.
  • a casing having an' opening, a dust separating member receivable in said casing, a keeper secured to said casing, a hollow dish-shaped closure for said opening, a plate member forming a cover for enclosing a space within said hollow closure, a latch member pivotally mounted in said space and having a portion for engaging said keeper to releasably secure the closure in closed position, a lever pivotally mounted on the outside of said plate member, and spring means for biasing one end of said lever into the path of travel of said portion of the latch member for preventing the latter from engaging said keeper, the other end of said lever contacting said dust separating member when the latter is in place in said casing for holding said one end out of said path of travel.
  • a casing having an opening, a dust separating member receivable in said casing, a keeper secured to said casing, a hollow dish-shaped closure for said opening, a plate member forming a cover for enclosing a space within said hollow closure, a latch member pivotally mounted in said space and having a portion for engaging said keeper to releasably secure the closure in closed position, said plate member formed with an inwardly extending recess adjacent to said latch member, a lever pivotally mounted in' said recess, and spring means for biasing one end of said lever into the path of travel of said portion of the latch member for preventing the latter from engaging said keeper, the other end of said lever contacting said dust separating member when the latter is in place in said casing for holding said one end out of said path of travel.
  • a vacuum cleaner a casing having an opening, a dust separating member receivable in said casing, a
  • keeper' secured to said casing, a hollow dish-shaped closure for said opening, a plate member forming a cover for enclosing a space within said hollow closure, a latch member pivotally mounted in said space and having a portion for engaging said keeper to releasably secure the closure in closed position, structure movably mounted on said plate, a portion of said structure being disposed within' said space, and spring means for biasing said portion into the path of travel of said latch member for preventing the latter from engaging said keeper, another portion of said structure ⁇ extending through an aperture in said plate member to contact said dust separating member when the latter is in place in said casing for holding the first-mentioned portion out of said path of travel.
  • a casing having an opening, a dust separating member receivable in said casing, a keeper secured to said casing, a hollow dish-shaped closure for said opening, a plate member removably secured t0 said closure and forming a cover for enclosing a space within said hollow closure, a latch member pivotally mounted in said space and having a portion for engaging said keeper to releasably secure the closure in closed position, a lever mounted on the inner side of ⁇ said plate within said space, and spring means carried by said plate for biasing one end of said lever into the path of travel of said latch member for preventing the latter from engaging said keeper, the other end of said lever extending through an aperture in said plate member to contact said dust separating member When the latter is in place in said casing for holding said one end out of said path of travel.
  • a casing having an opening, a dust separating member receivable in said casing, a keeper secured to said casing, a hollow dish-shaped c10- sure for said opening, a plate member removably secured to said closure and forming a cover for enclosing a space within said hollow closure, a latch member pivotally mounted in said space and having a portion for engaging said keeper to releasably secure the closure in closed position, movable means mounted on said plate, and spring means carried by said plate for biasing one portion of said movable means into the path of travel of said latch member for preventing the latter from engaging said keeper, another portion of said movable means contacting said dust separating member when the latter is in place in said casing for holding said one portion out of said path of travel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
US625087A 1956-11-29 1956-11-29 Mechanism in the cover of a vacuum cleaner for rendering the cleaner inoperative if no bag is in place Expired - Lifetime US2860725A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US625087A US2860725A (en) 1956-11-29 1956-11-29 Mechanism in the cover of a vacuum cleaner for rendering the cleaner inoperative if no bag is in place
US621638A US2860724A (en) 1956-11-29 1956-11-29 Mechanism for rendering a vacuum cleaner inoperative if no bag is in place
GB35099/57A GB810369A (en) 1956-11-29 1957-11-11 Improvements in vacuum cleaners
NL222363A NL98562C (de) 1956-11-29 1957-11-12
CH357842D CH357842A (de) 1956-11-29 1957-11-12 Staubsauger
FR1194432D FR1194432A (fr) 1956-11-29 1957-11-13 Mécanisme servant à arrêter le fonctionnement d'un aspirateur de poussière lorsqu'aucun sac à poussière n'y est placé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US625087A US2860725A (en) 1956-11-29 1956-11-29 Mechanism in the cover of a vacuum cleaner for rendering the cleaner inoperative if no bag is in place
US621638A US2860724A (en) 1956-11-29 1956-11-29 Mechanism for rendering a vacuum cleaner inoperative if no bag is in place

Publications (1)

Publication Number Publication Date
US2860725A true US2860725A (en) 1958-11-18

Family

ID=27089009

Family Applications (2)

Application Number Title Priority Date Filing Date
US625087A Expired - Lifetime US2860725A (en) 1956-11-29 1956-11-29 Mechanism in the cover of a vacuum cleaner for rendering the cleaner inoperative if no bag is in place
US621638A Expired - Lifetime US2860724A (en) 1956-11-29 1956-11-29 Mechanism for rendering a vacuum cleaner inoperative if no bag is in place

Family Applications After (1)

Application Number Title Priority Date Filing Date
US621638A Expired - Lifetime US2860724A (en) 1956-11-29 1956-11-29 Mechanism for rendering a vacuum cleaner inoperative if no bag is in place

Country Status (5)

Country Link
US (2) US2860725A (de)
CH (1) CH357842A (de)
FR (1) FR1194432A (de)
GB (1) GB810369A (de)
NL (1) NL98562C (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016982A (en) * 1958-04-01 1962-01-16 Electrolux Ab Vacuum cleaner cover latch control
US3150403A (en) * 1959-03-24 1964-09-29 Electrolux Ab Tank type suction cleaner
US4001912A (en) * 1975-01-31 1977-01-11 Aktiebolaget Electrolux Vacuum cleaner device
US4044421A (en) * 1975-01-20 1977-08-30 Aktiebolaget Electrolux Combination dust container and latching means for a vacuum cleaner
US4281864A (en) * 1978-04-17 1981-08-04 Siemens Aktiengesellschaft Locking device for a transport container of an electrically driven, rail-bound transport car with a contact device actuatable by a transport container cover for monitoring the locking state
USD272571S (en) 1981-02-25 1984-02-07 Electrolux Corporation Vacuum cleaner
USD285619S (en) 1984-09-12 1986-09-09 Electrolux Corporation Vacuum cleaner
US5907886A (en) * 1996-02-16 1999-06-01 Branofilter Gmbh Detector device for filter bags for vacuum cleaners
US6610121B2 (en) 2002-01-09 2003-08-26 Hp Intellectual Corp. Odor removal system
US6660060B2 (en) 2002-01-09 2003-12-09 Hp Intellectual Corp. Air filtering system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH625116A5 (en) * 1978-02-14 1981-09-15 Rotel Ag Vacuum cleaner with an exchangeable filter bag
DE3028571C2 (de) * 1980-07-28 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Staubsauger mit einem den Staubraum abschließenden Deckel
DE202005015042U1 (de) * 2005-09-23 2007-02-08 Vorwerk & Co. Interholding Gmbh Staubsauger mit darin befindlichem Filterbeutel
CN111067415B (zh) * 2018-10-19 2022-07-12 德国福维克控股公司 带有具有锁止装置的腔盖的抽吸清洁设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392948A (en) * 1943-11-16 1946-01-15 Reeves Hazard Portable crib
US2656897A (en) * 1948-03-20 1953-10-27 Jr Edward H Yonkers Suction cleaner
US2742105A (en) * 1953-12-11 1956-04-17 Air Way Ind Inc Device for preventing dust from being drawn into a vacuum cleaner when filter bag is not in place

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2322948A (en) * 1941-01-23 1943-06-29 Electrolux Corp Vacuum cleaner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392948A (en) * 1943-11-16 1946-01-15 Reeves Hazard Portable crib
US2656897A (en) * 1948-03-20 1953-10-27 Jr Edward H Yonkers Suction cleaner
US2742105A (en) * 1953-12-11 1956-04-17 Air Way Ind Inc Device for preventing dust from being drawn into a vacuum cleaner when filter bag is not in place

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016982A (en) * 1958-04-01 1962-01-16 Electrolux Ab Vacuum cleaner cover latch control
US3150403A (en) * 1959-03-24 1964-09-29 Electrolux Ab Tank type suction cleaner
US4044421A (en) * 1975-01-20 1977-08-30 Aktiebolaget Electrolux Combination dust container and latching means for a vacuum cleaner
US4001912A (en) * 1975-01-31 1977-01-11 Aktiebolaget Electrolux Vacuum cleaner device
US4281864A (en) * 1978-04-17 1981-08-04 Siemens Aktiengesellschaft Locking device for a transport container of an electrically driven, rail-bound transport car with a contact device actuatable by a transport container cover for monitoring the locking state
USD272571S (en) 1981-02-25 1984-02-07 Electrolux Corporation Vacuum cleaner
USD285619S (en) 1984-09-12 1986-09-09 Electrolux Corporation Vacuum cleaner
US5907886A (en) * 1996-02-16 1999-06-01 Branofilter Gmbh Detector device for filter bags for vacuum cleaners
US6610121B2 (en) 2002-01-09 2003-08-26 Hp Intellectual Corp. Odor removal system
US6660060B2 (en) 2002-01-09 2003-12-09 Hp Intellectual Corp. Air filtering system

Also Published As

Publication number Publication date
GB810369A (en) 1959-03-11
NL98562C (de) 1961-07-17
CH357842A (de) 1961-10-31
FR1194432A (fr) 1959-11-09
US2860724A (en) 1958-11-18

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