US3423907A - End closure for disposable dust bag - Google Patents

End closure for disposable dust bag Download PDF

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Publication number
US3423907A
US3423907A US483183A US3423907DA US3423907A US 3423907 A US3423907 A US 3423907A US 483183 A US483183 A US 483183A US 3423907D A US3423907D A US 3423907DA US 3423907 A US3423907 A US 3423907A
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United States
Prior art keywords
flaps
dust bag
bag
hole
sheet
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
US483183A
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English (en)
Inventor
George Leslie Hughes
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 AB
Original Assignee
Electrolux AB
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Publication date
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Publication of US3423907A publication Critical patent/US3423907A/en
Anticipated expiration legal-status Critical
Assigned to EL ACQUISITION CORPORATION, N/K/A ELECTROLUX CORP. reassignment EL ACQUISITION CORPORATION, N/K/A ELECTROLUX CORP. RELEASE OF SECURITY INTEREST Assignors: BANKBOSTON NA
Expired - Lifetime legal-status Critical Current

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    • 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
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
    • A47L9/1454—Self-sealing closures, e.g. valves
    • 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
    • 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
    • A47L9/1436—Connecting plates, e.g. collars, end closures

Definitions

  • This invention relates to a dust bag for a vacuum cleaner, the dust bag being of the kind which is disposable or thrown away when full, and which is self-sealing or normally closed, but can be automatically opened either by insertion of the tubular end of the usual flexible hose of the vacuum cleaner, or by insertion of a tubular member forming part of an end cover of the vacuum cleaner.
  • Disposable and self-sealing dust bags are known, for example, of the type in which a paper dust bag is attached at its open end to a mounting plate provided with a circular hole normally closed by an elastic diaphragm having a small central hole.
  • a paper dust bag is attached at its open end to a mounting plate provided with a circular hole normally closed by an elastic diaphragm having a small central hole.
  • the diaphragm is stretched and its small hole greatly enlarged, so that the tubular hose end or member can enter and communicate with the interior of the dust bag.
  • the diaphragm resumes its normal shape and substantially closes the dust bag.
  • This known construction is disadvantageous in that it is somewhat expensive and does not satisfy the requirement for a really low cost disposable or throw away bag.
  • a disposable and self-sealing dust bag for a vacuum cleaner comprises an end closure or a mounting plate with a hole for entry of dust and the like, means for automatically closing the hole, and a bag fixed to one face of the mounting plate around the hole therein.
  • the end closure or mounting plate of a disposable and self-sealing dust bag comprises two layers of cardboard or the like each having a central hole, with the central hole of the inner layer being closed by spring-biased flap means and the central 3,423,907 Patented Jan. 28, 1969 hole of the outer layer being of smaller area than that of the inner layer to provide a surrounding abutment zone against which the flap means can bear and thus be prevented from opening outwardly.
  • closing of the central hole of the inner cardboard layer is effected by two flaps which are defined by integrally connected parts formed or out from the inner layer so as to be swingable inwardly about parallel, spaced fold lines, and such flaps are urged to their closed positions against the abutment zone surrounding the central hole of the outer layer by means of a one-piece spring.
  • the one-piece spring for urging the flaps to their closed positions is preferably of generally U-shaped configuration to present legs which extend along the fold lines of the flaps and are connected by a cross-piece anchored between the two adhesively secured together layers, and the spring further has arms extending from the free ends of its legs to lie against the surfaces of the flaps facing away from the outer layer, whereby the legs of the spring torsionally resist inward swinging of the flaps from their closed positions.
  • FIG. 1 is a perspective view of a vacuum cleaner having a dust bag embodying this invention disposed therein, and with the end cover of the vacuum cleaner being shown in its open position;
  • FIG. 2 is a fragmentary perspective view similar to a portion of FIG. 1, but illustrating the withdrawal of the dust bag, when full, from the vacuum cleaner;
  • FIG. 3 is an enlarged, fragmentary axial sectional view of the vacuum cleaner with the dust bag installed therein;
  • FIG. 4 is an exploded perspective view of the several components of a disposable and self-sealing dust bag embodying this invention
  • FIG. 5 is an enlarged side elevational view of the dust bag assembled from the components of FIG. 4;
  • FIG. 6 is a plan view of the mounting plate of the dust bag, as viewed from the inner side thereof, and with one of the flaps being partly broken away;
  • FIG. 7 is a view similar to that of FIG. 6, but showing the mounting plate as viewed from the outer side thereof, and with part of the outer layer being broken away;
  • FIG. 8 is a plan view of the spring forming a part of the mounting plate
  • FIG. 9 is an end view of the spring
  • FIG. 10 is a plan view of a paper blank from which a disposable dust bag is produced.
  • FIG. 11 is a view of the blank after the pleating thereof
  • FIG. 12 is a sectional view taken along the line 12 12 on FIG. 11;
  • FIG. 13 is a sectional view taken along the line 13 13 on FIG. 5.
  • a vacuum or suction cleaner 10 for which the disposable and self-sealing dust bags embodying this invention are intended may be of the tank type comprising a casing 11 having a front end cover 12 and a rear end cover 13.
  • the casing 11 is provided with a handle 14 and with Skids 15, as shown, or wheels on which it can be moved.
  • the front end cover 12 may be removably secured on the front end of the casing 11 in any suitable manner.
  • the cover 12 is hinged to the casing 11 by means of a hinge pin 16 to adapt the front end cover to swing away from and open the adjacent end of the casing.
  • the end cover 12 is formed with an air inlet opening 17 (FIG. 3) surrounded by a rearwardly projecting tube 18 (FIGS. 1, 2 and 3) adapted to removably receive one end of a suction hose (not shown).
  • the outer free end of the suction hose is connected to a wand on which suitable cleaning appliances may be detachably mounted.
  • annular flange 19 At the front end of casing 11 there is an annular flange 19 (FIG. 3) which carries a resilient sealing ring or gasket 20.
  • a cloth filter bag 21 extends from gasket into casing 11 and is adapted to receive a disposable and self-sealing dust bag 22 embodying this invention which acts to separate dust and other suspended material from air entering the casing through the tube 18.
  • the flow of air through the casing 11 is effected by a motorfan unit (not shown) mounted within the rear end portion of the casing to receive air which passes through the dust bag 22 and the cloth filter bag 21 and to discharge the air through an air outlet opening 23 (FIG. 1).
  • the end cover 12 is normally held in its closed position (FIG. 3) by a latch mechanism that includes a latch member 24 on the cover and a latch keeper 25 mounted on the casing 11.
  • the latch member 24 may comprise a sheet metal plate pivotally mounted at one end on a pin 26 and having a latching detent or catch 27 adjacent its other end.
  • Pin 26 is mounted between bosses 28 on cover 12, and a hairpin spring 29 surrounds pin 26 and has its legs engaged with a lug 30 on the cover and with latch member 24 to urge the latter toward its latching position.
  • An integral lug extends upwardly from latch member 24 and carries a push button 31 which projects into an opening 32 in cover 12.
  • the latch keeper 25 may be in the form of a pin extending between spaced lugs 33 projecting forwardly from flange 19 of casing 12 and being receivable in latching detent 27, as shown on FIG. 3.
  • latch member 24 When push button 31 is manually depressed, latch member 24 is rocked downwardly and releases keeper 25 from detent 27 to permit swinging of cover 12 to its open position, as shown on FIGS. 1 and 2.
  • cover 12 When cover 12 is moved to its closed position, a curved nose 34 on latch member 24 cams under keeper pin 25 until the latter is received in detent 27 to hold the cover in its closed position.
  • the dust bag 22 generally comprises a paper bag 35 and a mounting plate assembly 36.
  • the bag 35 is formed of a single sheet of filter paper, as hereinafter described, so as to have walls 37 (FIGS. 4 and 13) joined at one end of the bag, as at a fold 38 (FIGS. 4 and 5), and also joined at the sides of the bag by longitudinal pleats 39.
  • the number of the pleates 39 is not critical, and is selected in accordance with the permissible air resistance of the total bag surface, taking into account the air permeability of the paper and its properties in resisting clogging by fine particles of dust.
  • the walls 37 and the pleats 39 at the open end of the bag 35 remote from the fold 38 are splayed outwardly so as to present a generally flattened end zone 40 (FIGS. 4 and 5) around the mouth of the bag at which the latter is adhesively attached to the inner surface of mounting plate assembly 36.
  • the end closure or mounting plate assembly 36 includes outer and inner flexible sheets 41 and 42 which are both in the form of discsand may be formed of cardboard, for example.
  • the outer disc or layer 41 has a central round hole 43 (FIGS. 4 and 7) dimensioned to receive the tube 18 of cover 12 and a tab 44 projecting from its periphery by which the mounting plate assembly may be grasped when effecting manual removal of the dust bag from the vacuum cleaner, as shown on FIG. 2.
  • the inner cardboard layer or disc 42 has its central region cut along spaced lines 45 and 46 and along a line 47 connecting the mid-points of lines 45 and 46 (FIG. 6) to define two flaps 48 and 49 which are bendable or swingable about score or fold lines 50 and 51 extending between the ends of lines 45 and 46.
  • the hole 43 of disc 41 has a smaller area than the opening defined in disc 42 when flaps 48 and 49 are opened or swung inwardly about score lines 50 and 51 so that, when discs 41 and 42 are adhesively secured together, an abutment zone 52 is defined around hole 43 within the area of the flaps 48 and 49 to prevent outward opening of the flaps.
  • the mounting plate assembly 36 further includes a onepiece, generally U-shaped spring 53 of piano wire or the like which is bent into the configuration shown on FIGS. 8 and 9 so as to have legs 54 and 55 connected, at one end, by a cross-piece 56, and preferably V-shaped arms 57 and 58 extending from the free ends of legs 54 and 55 into the space between the latter. As shown particularly on FIG.
  • the V-shaped arms 57 and 58 preferably normally lie in planes that are offset by the angles a, of approximately 10, with respect to the plane containing legs 54 and 55 and cross-piece 56, so as to facilitate arrangement of the spring 53 with its legs 54 and 55 extending along the score lines 50 and 51 at the outer or front surface of disc 42 and with its V-shaped arms 57 and 58 in back of flaps 48 and 49, respectively, as shown on FIG. 6.
  • discs 41 and 42 are adhesively secured to each other in facially abutting relation, whereby cross-piece 56 of the spring is anchored between the two adhesively secured discs or cardboard layers and thereby maintained in the desired assembled position.
  • the outwardly splayed or flattened zone 40 of paper bag 35 is adhesively attached to the back or inner surface of inner disc 42 at the region of the latter defined between the dot-dash lines 59 and 60 shown on FIG. 6.
  • the inner layer or disc 42 may be cut more or less along the line 59 so as to form a central section containing the flaps 48 and 49 and a peripheral section constituted by the portion of disc 42 disposed outside of line 59.
  • the disc 42 is formed of a central section and a peripheral section, as described above, only the central section is initially attached to disc 41 for securing spring 53 in its assembled position, and the splayed or flattened zone 40 of paper bag 35 is adhesively attached to the peripheral section of disc 42 prior to the attachment of that peripheral section to disc 41 so as to extend around the previously attached central section.
  • this produces a bag generally similar to that shown in FIG. 4, except for the deformed or outwardly splayed open end.
  • the fold line 38b of FIG. 11 corresponds to the fold 38 of FIG. 4.
  • the bag so produced is clamped in a vise or other clamping tool, with only the top or open end portion projecting therefrom, and such projecting portion is then splayed out and flattened, so that it forms the deformed and generally flattened end zone or portion 40 of FIGS. 4 and 5 for adhesive attachment to the mounting plate assembly 36, as described above.
  • the paper bag 35 gradually becomes filled with dust and the like and expands accordingly.
  • the pleats 39 permit such expansion, the folding of the pleats at the closed end of the bag, at 38, and the attachment of the splayed end portion 40 to the rigid mounting plate assembly 36 limit the expansion of the pleats 39 and thus ensure that, when the paper bag 35 is filled, it will nevertheless be easily removable from within the cloth filter bag 21.
  • cover 12 When bag 35 is filled, cover 12 is opened, as shown on FIG. 2, to withdraw its tube 18 from the hole 43 of mounting plate assembly 36 and spring 53 then strongly urges flaps 48 and 49 to their closed positions for sealing the dust bag 22.
  • the tab 44 may then be grasped to effect removal of the dust bag 22 as a unit, whereupon a new bag can be installed.
  • the superimposed flexible sheets 41 and 42 define an end closure 36 for the dust bag 35 in which the outer sheet 41 is formed with a single hole 43 which is coplanar therewith and through which dust-laden air is adapted to be introduced into the dust bag 35.
  • the inner sheet 42 has a plurality of cuts 45, 46 and 47 therethrough and a plurality of scorings 50 and 51 therein defining the two flaps 48 and 49 which are integral with the sheet 42 and partially severed therefrom.
  • the flaps 48 and 49 are normally cantilevered from the inner sheet 42 and, when coplanar therewith, so arranged that they extend in opposite directions toward one another with their outer free edges in abutting relation and with both flaps 48 and 49 covering the single hole 43 in the outer sheet 41 and also overlying the regions 52 of the inner face of the outer sheet 41 about the hole 43.
  • the unsevered scorings 50 and 51 in the inner sheet 42 are located at opposite sides of the hole 43 in the outer sheet 41 and serve as hinges about which the flaps 48 and 49 swing into the dust bag 35.
  • the flaps are adapted to be forcibly swung into the dust bag 35 to form a single aperture in the inner sheet 42 which is coplanar therewith and at least as large as the single hole 43 in the outer sheet and in registry therewith.
  • the flaps 48 and 49 are biased to their positions coplanar with the inner sheet 42 when force is removed therefrom.
  • This is accomplished by the single bent wire spring 53 of generally U-shaped configuration.
  • the leg 54 and arm 57 of spring 53 form one elongated bent wire spring section and the leg 55 and arm 58 form another elongated bent wire spring section.
  • the legs 54 and 55 are substantially straight and disposed at the outer face of the inner sheet 42 in alignment with and along the unsevered scorings 50 and 51 serving as the hinges.
  • the cross-piece 56 of the bent spring 53 which is disposed between the outer and inner sheets 41 and 42, functions as means to anchor the ends of the legs 54 and 55 to which the cross-piece 56 is joined. With this arrangement torsional resistance is developed in the legs 54 and 55 by the arms 57 and 58 when the flaps 48 and 49 swing into the dust bag 35, the arms functioning in this manner for the reason that they extend along and bear against the inner surfaces of the flaps.
  • An end cover for a dust bag comprising a mounting plate including inner and outer flexible sheets, said outer sheet having a hole therein, said inner sheet having two flaps cut therefrom and being swingable about parallel fold lines out of the plane of said inner sheet to define an opening of greater area than said hole, said sheets being fixed to one another about said opening so as to center said hole with respect to said opening and thereby expose a portion of said outer sheet at said opening to constitute an abutment zone preventing outward swinging of said flaps, spring means urging said flaps against said abutment zone to close said hole, said spring means comprising a single bent wire spring of generally U-shaped configuration having legs joined at one end by a crosspiece and arms extending from the free ends of said legs, said spring being arranged with said legs extending lengthwise of and at the vicinities of said fold lines of the flaps at the outer side of said inner sheet and said cross piece being anchored between said sheets fixed to one another, and with the arms of said spring engaging the inner surfaces of said flaps so that inward opening of said
  • a disposable, self-sealing dust bag for a vacuum cleaner including a dust bag which is open at one end; a mounting plate assembly comprising inner and outer flexible sheets, said outer sheet having a central hole adapted to receive a tubular member for the entry of dust-laden air into the bag, said inner sheet having swingable flap means cut therefrom to define an opening of greater area than said hole at which a portion of said outer sheet is exposed to form an abutment Zone for limiting outward swinging of said flap means, said flap means comprising two flaps swingable about parallel fold lines out of the plane of the remainder of said inner sheet, said inner and outer sheets being fixed to one another about said opening of the inner sheet, said dust bag having its open end secured to said inner sheet about said opening, spring means yieldably urging said flaps to closed positions against said abutment Zone so as to close said hole when the tubular member is withdrawn therefrom, said spring means comprising a single bent wire spring of generally U-shaped configuration having legs joined at one end by a cross-piece and arms extending from
  • An end closure for a dust bag comprising (a) superimposed outer and inner flexible sheets,
  • both flaps when in coplanar relation with the inner sheet, being arranged such that they extend in substantially diametrically opposite directions toward one another with their outer free edges substantially in abutting relation and with both flaps covering the single hole in the outer sheet and also overlying regions of the inner face of the outer sheet about the hole, and
  • both flaps being adapted to be forcibly swung into the dust bag to form a single aperture in the inner sheet which is coplanar therewith and at least as large as the single hole in the outer sheet and in registry therewith.
  • An end closure for a dust bag comprising (a) superimposed outer and inner flexible sheets,
  • the inner sheet having a plurality of cuts therethrough and a plurality of scorings therein defining two flaps which are integral therewith and coplanar with the inner sheet and adapted to be partially severed from the sheet,
  • both flaps when coplanar with the inner sheet, being so arranged that they extend in substantially opposite directions toward one another with their outer free edges substantially in abutting relation and with both flaps covering the single hole in the outer sheet and also overlying regions of the inner face of the outer sheet about the hole,
  • the unsevered scorings in the inner sheet being located at opposite sides of the hole in the outer sheet and serving as hinges about which the flaps swing into the dust bag, and
  • both flaps being adapted to be forcibly swung into the dust bag to form a single aperture in the inner sheet which is coplanar therewith and at least as large as the single hole in the outer sheet and in registry therewith.
  • An end closure for a dust bag as set forth in claim 4 which includes HARRY B.
  • the arms being arranged such that they extend along the inner surfaces of the flaps and, responsive to torsional resistance developed in the legs when the flaps swing into the dust bag, function to bias the flaps to their positions coplanar with the inner sheet when force is removed from the flaps, and
  • An end closure for a dust bag as set forth in claim 4 which includes (a) a single bent wire spring of generally U-shaped configuration having legs joined at one end by a cross-piece and arms extending from the opposite free ends of the legs,
  • bent wire spring being arranged with the legs at the outer face of the inner sheet and extending lengthwise of and at the vicinities of the unsevered scorings serving as the hinges, and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
US483183A 1964-09-08 1965-08-27 End closure for disposable dust bag Expired - Lifetime US3423907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1079164 1964-09-08

Publications (1)

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US3423907A true US3423907A (en) 1969-01-28

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ID=20292850

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Application Number Title Priority Date Filing Date
US483183A Expired - Lifetime US3423907A (en) 1964-09-08 1965-08-27 End closure for disposable dust bag

Country Status (9)

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US (1) US3423907A (de)
CH (1) CH450647A (de)
DE (1) DE1503726C3 (de)
DK (1) DK117855B (de)
FI (1) FI41990C (de)
FR (1) FR1446596A (de)
GB (2) GB1046200A (de)
NL (1) NL145447B (de)
NO (1) NO117761B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491791A (en) * 1968-01-19 1970-01-27 Bard Inc C R Flutter valve and method of making same
US3675399A (en) * 1969-04-21 1972-07-11 Whirlpool Co Vacuum cleaner
FR2118908A1 (de) * 1970-12-22 1972-08-04 Electrolux Ab
US3724179A (en) * 1966-12-26 1973-04-03 Electrolux Ab Self-sealing end closure for disposable dust bag
US3751881A (en) * 1970-06-18 1973-08-14 Electrolux Ab Dust receptacle for a vacuum cleaner
JPS5020463U (de) * 1973-06-14 1975-03-07
US3873285A (en) * 1972-04-07 1975-03-25 Hoover Co Suction cleaner
US3933451A (en) * 1972-04-24 1976-01-20 Johansson Goran R Dust collecting bag
US4936883A (en) * 1988-04-06 1990-06-26 Aktiebolaget Electrolux Arrangement in a suction cleaner
US20090272083A1 (en) * 2006-04-25 2009-11-05 Eurofilters Holding N.V. Holding Plate for a Vacuum Cleaner Filter Bag
WO2021165687A1 (en) * 2020-02-21 2021-08-26 Numatic International Limited Vacuum cleaner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9016939U1 (de) * 1990-12-17 1991-04-04 Wolfgang B. Schroeter GmbH, 4973 Vlotho Filtereinrichtung für einen Staubsauger
DE19948909A1 (de) * 1999-10-11 2001-04-12 Vorwerk Co Interholding Filterbeutel für einen Staubsauger
DK2366319T3 (en) * 2010-03-19 2015-05-26 Eurofilters Holding Nv Vacuum cleaner filter bag

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2070674A (en) * 1935-11-05 1937-02-16 Utility Innovations Inc Dust bag
US2225389A (en) * 1938-04-14 1940-12-17 Osterdahl Ragnar Vacuum cleaner bag
US2649926A (en) * 1945-09-22 1953-08-25 Electrolux Corp Means to eject dust bag from vacuum cleaner casing
US2848062A (en) * 1954-04-22 1958-08-19 Lewyt Corp Filter bag
US2961063A (en) * 1958-06-06 1960-11-22 Studley Paper Company Inc Bag
US3108736A (en) * 1952-12-20 1963-10-29 Electrolux Corp Container closures
US3237846A (en) * 1964-03-06 1966-03-01 Electrolux Corp End closure for disposable dust bag

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2070674A (en) * 1935-11-05 1937-02-16 Utility Innovations Inc Dust bag
US2225389A (en) * 1938-04-14 1940-12-17 Osterdahl Ragnar Vacuum cleaner bag
US2649926A (en) * 1945-09-22 1953-08-25 Electrolux Corp Means to eject dust bag from vacuum cleaner casing
US3108736A (en) * 1952-12-20 1963-10-29 Electrolux Corp Container closures
US2848062A (en) * 1954-04-22 1958-08-19 Lewyt Corp Filter bag
US2961063A (en) * 1958-06-06 1960-11-22 Studley Paper Company Inc Bag
US3237846A (en) * 1964-03-06 1966-03-01 Electrolux Corp End closure for disposable dust bag

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724179A (en) * 1966-12-26 1973-04-03 Electrolux Ab Self-sealing end closure for disposable dust bag
US3491791A (en) * 1968-01-19 1970-01-27 Bard Inc C R Flutter valve and method of making same
US3675399A (en) * 1969-04-21 1972-07-11 Whirlpool Co Vacuum cleaner
US3751881A (en) * 1970-06-18 1973-08-14 Electrolux Ab Dust receptacle for a vacuum cleaner
FR2118908A1 (de) * 1970-12-22 1972-08-04 Electrolux Ab
US3873285A (en) * 1972-04-07 1975-03-25 Hoover Co Suction cleaner
US3933451A (en) * 1972-04-24 1976-01-20 Johansson Goran R Dust collecting bag
JPS5020463U (de) * 1973-06-14 1975-03-07
US4936883A (en) * 1988-04-06 1990-06-26 Aktiebolaget Electrolux Arrangement in a suction cleaner
US20090272083A1 (en) * 2006-04-25 2009-11-05 Eurofilters Holding N.V. Holding Plate for a Vacuum Cleaner Filter Bag
US8092562B2 (en) * 2006-04-25 2012-01-10 Eurofilters Holding N.V. Holding plate for a vacuum cleaner filter bag
WO2021165687A1 (en) * 2020-02-21 2021-08-26 Numatic International Limited Vacuum cleaner

Also Published As

Publication number Publication date
DE1503726A1 (de) 1969-05-22
NO117761B (de) 1969-09-22
DE1503726B2 (de) 1973-11-08
GB1046200A (en) 1966-10-19
DE1503726C3 (de) 1974-05-30
FI41990B (de) 1969-12-31
FR1446596A (fr) 1966-07-22
DK117855B (da) 1970-06-08
CH450647A (de) 1968-01-31
FI41990C (fi) 1970-04-10
GB1046199A (en) 1966-10-19
NL6511706A (de) 1966-03-09
NL145447B (nl) 1975-04-15

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Owner name: EL ACQUISITION CORPORATION, N/K/A ELECTROLUX CORP.

Free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:BANKBOSTON NA;REEL/FRAME:009580/0655

Effective date: 19980831