US2237499A - Vacuum-cleaner bag - Google Patents
Vacuum-cleaner bag Download PDFInfo
- Publication number
- US2237499A US2237499A US195370A US19537038A US2237499A US 2237499 A US2237499 A US 2237499A US 195370 A US195370 A US 195370A US 19537038 A US19537038 A US 19537038A US 2237499 A US2237499 A US 2237499A
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- Prior art keywords
- bag
- body portion
- collapsible
- cleaner
- mouth portion
- Prior art date
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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
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- 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
- Y10S55/00—Gas separation
- Y10S55/02—Vacuum cleaner bags
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- 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
- Y10S55/00—Gas separation
- Y10S55/03—Vacuum cleaner
Definitions
- VACUUl-CLEANER BAG l Filed ual-n 11, 195s 2 Sheets-Sheet 2 TjT/a lPatented Apr. 8, 1941 UNITED VACUUM-CLEANER BAG Ragnar K. sterdahl, Essingen, Sweden Application Maren 11, 193s, serial' No. 195,370
- This invention relates to vacuum cleaners and morepartlcularly to bags adapted to be attached to the same to receive more or less coarse sweepings and, preferably, also the dust collected by the cleaner, and it is an vobject of my invention to provide a replaceable and destructlble bag for such purpose, which may be made very cheaply, supplied to the consumer at a very low price and can be shipped and stored in a completely flattened shape, even though it has in use an outwardly extending annular flange for its safe fastening to the cleaner.
- 4Another object of my invention is to provide a vacuum-cleaner bag that can be secured to the vacuum cleaner by means of an outwardly extending ange which can easily be collapsed, so as to avoid the escape of dust and dirt from the bag, when the latter is removed from the container.
- Fig. 1 is a longitudinal view, partly in section, of the main parts of a vacuum cleaner illustrating the improved bag in place.
- Fig. 2 is a side view of the flat bag.
- Fig. 3 is an end View of the opened bag ready for insertion into the cleaner.
- Figs. 4-7 illustrate some steps of manufacturing the bag.
- Fig. 8 illustrates a part of the bag.
- Fig. 9 illustrates, partly in section, a modified embodiment of the improved flat bag.
- Fig. 10 illustrates a modified part of the bag shown in Fig. 9.
- Fig. 11 illustrates .another modified part of the bag shown in Fig. 9.
- Fig. 12 is a sectional View showing a modifled embodiment of the mouth of the bag shown ln
- Fig. '1 shows the air-pervious bag I in place within the casing 2 of the vacuum cleaner which encloses l the motor driven fan 45.
- the inserted bag has an annular, radially extending iiange 3 which is clamped between a ring 40 and acover 4.
- the bag I is' placed within a bag 42 of cotton which has a metal flange 4I that is clamped between the ring 40 and an annular flange 5 of the casing 2.
- the opening 6 in the cover 4 is connected with the suction nozzle (not shown) of the cleaner, and the opening 1 of the casing is the outlet for air passing .through the fan 45.
- the bag is composed of a mouth portion 8 and a perforated body portion 9 which has aps I0 cut out in its wall.
- a band I6 of paper or another suitable sheet material is provided with transverse creases II and I2, a longitudinal crease I3 and creases I4 extending diagonally between the creasesV II and I2, as shown in Fig. 4. These creases have the effect of pleating the mouth portion of the bag. Thereafter, the band I6 is folded transversely along the creases II and I2, as shown in Figs.
- One or a plurality of the vacnum-cleaner bags can be enclosed in their flattened state in a hat envelope, since the portion of the bag that is adapted to form an annular attaching flange forms a direct extension of the bag when the latter is collapsed. Thus they can easily be packed, stored, shipped and distributed and even though, when in use, they are intended to form a substantially cylindrical collector having an outwardly extending annular flange for a particularly safe attachment.
- the folded mouth 8 is bent outwards to form a substantially annular flange 3 (Fig. 3) which obtalns a regular polygonal shape as the creases I4 facilitate a regular unfolding of the folds I1.
- this bag has substantially for its object to collect fibrous matter, so that the cleaner can be in use for a very long time before it will be necessary to release and clean the ordinary fabric bag.
- the perforated paper bag will form an air-pervious layer that porous filler 23 consisting of fibrous lignocellulose enclosed within the wall 9 and an inner openwork wall or lining 24 which affords large openings 26.
- porous filler 23 consisting of fibrous lignocellulose enclosed within the wall 9 and an inner openwork wall or lining 24 which affords large openings 26.
- a filler of fibrous lignocellulose is particularly well adapted for the purpose as it will not be unduly felted when the bag is in use or stored.
- the filler 23 is first glued to a web of open-work lining leavingmargins 26 and 2l extending beyond the filler.
- a web of paper having cut out flaps I0 covering its perforatlons is glued at some points to the filler.
- 'I'he folded bandv 8 is made substantially in the manner heretofore described but it is provided by way of example that a fiat band 28 is doubled on and glued to both sides of a margin of the folded band 8.
- the band 28 is glued to the margin 26 and to the adjacent edge of the wall 9, so that an air tight joint is obtained.
- the margin 21 of the lining 24 is,tightly attached to the wall 9 by means of a strip 29 which is glued to the inner side of the wall 9 and to the margin 21.
- the blank thus formed with the mouth portion is cut, folded and 'sealed in the same manner as mentioned above to constitute substantially a Satchel bag of paper or similar suitable combustible material.
- the manufacture of the bag can be carried out completely automatically on forming a continuous band composed of the outer wall, ⁇ a filler, a lining and a folded band which is fed through the machine.
- a corrugated, air-pervious filler 3l,as shown in Fig. 10 may be substituted for the fibrous filler 23.
- the filler might be covered with a fibrous coating 46 of lignocellulose or another suitable material. Said coating serves to trap coarser impurities whilst the filler 9 serves to trap dust ⁇ or the like.
- the band 8 is glued to the inner side of the wall il.
- a strip 44 of paper or another suitable sheet material is glued to the margin 26 of the lining as well as to the band 8, so that an air tight joint is obtained.
- Such an attachment might be arranged also in the embodiment shown in Figs. 2 and 3.
- 'Ihe filler may be saturated 75 with one or more suitable matters adapted to adhere dust, absorb moisture of the air as well to refresh the air passing through the cleaner.'
- the bag with its mouth portion can be fiattened completely it can be enclosed hermetically within an envelope, the additional matters will not evaporate or be destroyed when the bags are stored.
- the bag inserted into the vacuum cleaner assumes when in use a substantially cylindrical shape conforming to the annular shape of its mouth, but it is likely to resume its original fiat shape when the suction effect is changed.
- the porous or fibrous finer or coating has a selfcleaning tendency due to pulsatory movements of the bag Walls.
- a vacuum-cleaner bag having a collapsible body portion and a collapsible mouth portion having substantially the same width as said body por-tion and forming a longitudinal extension thereof, said collapsible mouth portion consisting of a strip attached at one edge to said body portion and having collapsible pleats extending in the longitudinal direction of said body portion. said pleats being stuck together at said edge, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular fiange extending laterally beyond said body portion for attachment to the vacuum cleaner.
- a vacuum-cleaner bag having a Vcollapsible body portion, a collapsible mouth portion of substantiallythe same Width as said body portion and forming a longitudinalextension thereof, said mouth portion consisting of a strip attached at one edge .to said body portion and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, and another strip adhesively applied to said edge of said pleated strip transversely to said body portion to retain said pleats in flatly folded condition at a distance from thev upper edge of said mouth portion, ⁇ said mouth portion being adapted to be bent outwards on unfolding the upper part of said collapsible pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to said vacuum cleaner.
- a vacuum-cleaner bag having a collapsible body portion and a collapsible mouth portion of substantially the same width as said body portion, said collapsible mouth portion forming a longitudinal extension of said body portion and having folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radi-- ally extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said pleats being formed to impart to said ange a polygonal periphery.
- a vacuum-cleaner bag having a collapsible body portion and a collapsible mouth portion of substantially the same width as said body portion, said mouth portion forming a longitudinal extension of said body portion and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said pleats having creases extending diagonally between their longitudinal edges.
- a vacuum-cleaner bag having a. collapsible body portion, a collapsible mouth portion of substantially the same width as said body portion, and a bottom which isfoldable in fiat relationship to said body portion and said mouth portion, said collapsible mouth portion forming a longitudinal extension of said body portion and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, saicimouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner.
- Alvacuum-cleaner bag having a collapsible mouth portion comprising collapsible pleats extending longitudinally of the bag and being adapted to be bent outwards to form a substantially annular radially extending supporting.
- said pleats being secured against unfolding at a distance from the end of said mouth portion defining the width of said iiange, the difference between the circumferential length of the material forming said mouth portion and the circumferential length of said mouth portion when tion.
- said collapsible mouth portion forming a longitudinal extension of said body portion and having collapsible folds forming pleats extending in the longitudinal direction of 'said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner.
- a vacuum-cleaner bag having a collapsible body portion composed of an outer wall and -a lining of fibrous air-straining material. and a collapsible mouth portion of substantially ⁇ the same width as said body portion, said mouth portion forming a longitudinal extension of said body portion beyond said lining and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said body portion and said mouth portion being collapsible to form a flat and smooth lining and envelope completely covering said lining.
- a vacuum-cleaner bag having a collapsible body portion composed of an outer wall and a corrugated lining of air-straining material, and a collapsible mouth portion of substantially the same width as said body portion, said mouth portion forming a longitudinal extension of said bodyV portion beyond said lining and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said body portion and said mouth portion being collapsible to form a flat and smooth lining and envelope completely covering said lining.
- a vacuum-cleaner bag having a collapsible body portion composed of an outer perforated wall and a lining of fibrous air straining material, a collapsible mouth portion having substantially the same width as said body portion and forming a longitudinal extension of said body portion beyond said lining and having collapsible folds forming pleats extending in the longitudinal direction o1' said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleated folds to form a substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, and a sealing strip for con ⁇ necting said lining to said outer wall, said mouth portion being attached to the inside of the upper edge of said outer wall and said strip extending transversely of said body portion and being attached at its upper edge to the inside of said mouth portion to prevent the upper lter edge from getting loose from said outer wall when said mouth portion is folded outwardly.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Description
April 8, 1.941. y R. K. sTERDAHL vAcUUl-CLEANER BAG Fld March 11, 1938 2 Sheets-Sheet 1 f-fglz UUUU April 8, 1941.
' R. K. OsTERDAl-n.
VACUUl-CLEANER BAG l Filed ual-n 11, 195s 2 Sheets-Sheet 2 TjT/a lPatented Apr. 8, 1941 UNITED VACUUM-CLEANER BAG Ragnar K. sterdahl, Essingen, Sweden Application Maren 11, 193s, serial' No. 195,370
In Sweden March 19, 1937 l 11 Claims.
This invention relates to vacuum cleaners and morepartlcularly to bags adapted to be attached to the same to receive more or less coarse sweepings and, preferably, also the dust collected by the cleaner, and it is an vobject of my invention to provide a replaceable and destructlble bag for such purpose, which may be made very cheaply, supplied to the consumer at a very low price and can be shipped and stored in a completely flattened shape, even though it has in use an outwardly extending annular flange for its safe fastening to the cleaner.
4Another object of my invention is to provide a vacuum-cleaner bag that can be secured to the vacuum cleaner by means of an outwardly extending ange which can easily be collapsed, so as to avoid the escape of dust and dirt from the bag, when the latter is removed from the container. I l
Other objects and advantages of my invention will appear from the following detailed description in connection with the accompanying drawings, in which:
Fig. 1 is a longitudinal view, partly in section, of the main parts of a vacuum cleaner illustrating the improved bag in place.
Fig. 2 is a side view of the flat bag.
Fig. 3 is an end View of the opened bag ready for insertion into the cleaner.
Figs. 4-7 illustrate some steps of manufacturing the bag. f
Fig. 8 illustrates a part of the bag.
Fig. 9 illustrates, partly in section, a modified embodiment of the improved flat bag.,
Fig. 10 illustrates a modified part of the bag shown in Fig. 9.
Fig. 11 illustrates .another modified part of the bag shown in Fig. 9.
Fig. 12 is a sectional View showing a modifled embodiment of the mouth of the bag shown ln Referring in detail to the drawings, Fig. '1 shows the air-pervious bag I in place within the casing 2 of the vacuum cleaner which encloses l the motor driven fan 45. The inserted bag has an annular, radially extending iiange 3 which is clamped between a ring 40 and acover 4. The bag I is' placed within a bag 42 of cotton which has a metal flange 4I that is clamped between the ring 40 and an annular flange 5 of the casing 2. lThe opening 6 in the cover 4 is connected with the suction nozzle (not shown) of the cleaner, and the opening 1 of the casing is the outlet for air passing .through the fan 45. A
As shown in Fig. 2, the bag is composed of a mouth portion 8 and a perforated body portion 9 which has aps I0 cut out in its wall. In the manufacture of the bag a band I6 of paper or another suitable sheet material is provided with transverse creases II and I2, a longitudinal crease I3 and creases I4 extending diagonally between the creasesV II and I2, as shown in Fig. 4. These creases have the effect of pleating the mouth portion of the bag. Thereafter, the band I6 is folded transversely along the creases II and I2, as shown in Figs. 5 and 6, whereafter a strip I5 is glued to the folded band immediately below the forated sheet material, so that the lower parts of the folds I'I are collapsed between the band I5 and the sheet I8. The perforations of the sheet I8 are formed by the out out flaps I 0 the ends of which have suitably narrow and fragile connections 2l with the sheet I8. Thereafter, bag blanks are cut out, and said blanks are folded along definite folding creases to form a collapsed bag that has a sealed Satchel bottom 22, as shown in Fig. 2. All parts of the bag consist preferably of paper or another suitable combustible material. The bag .thus manufactured is very cheap as it can be manufactured completely automatically in a slightly modified machine for making commercial paper bags. One or a plurality of the vacnum-cleaner bags can be enclosed in their flattened state in a hat envelope, since the portion of the bag that is adapted to form an annular attaching flange forms a direct extension of the bag when the latter is collapsed. Thus they can easily be packed, stored, shipped and distributed and even though, when in use, they are intended to form a substantially cylindrical collector having an outwardly extending annular flange for a particularly safe attachment. For the purpose of inserting the bag into the cleaner casing 2 the folded mouth 8 is bent outwards to form a substantially annular flange 3 (Fig. 3) which obtalns a regular polygonal shape as the creases I4 facilitate a regular unfolding of the folds I1. When the mouth 8 is bent outwards its doubled portion I9 is unfolded. The forming of the flange crease I3 can assist thereby. Therefore, there is no danger that the bag .will be inserted into the cleaner in an incorrect position which might cause rupture of the bag when in use subjected Dre to air pressure and the load of collected dirt and dust.- Furthermore. no uncontrolled deformation of the bag will occur when subjected to air ure.
It is provided by way of example that .the bag now described is intended itself merely to trap relatively coarse particles, such as fibrous matter,
and to let through air and fine dust through the flaps I the connections 2i of which are ruptured when the bag is subjected to suction. Thus this bag has substantially for its object to collect fibrous matter, so that the cleaner can be in use for a very long time before it will be necessary to release and clean the ordinary fabric bag. I
have experienced that the disagreeable task of cleaning the outer fabric bag 42 will not be necessary untilafter a very long time of use, since the felted fibrous matter trapped by .the perforated paper bag will form an air-pervious layer that porous filler 23 consisting of fibrous lignocellulose enclosed within the wall 9 and an inner openwork wall or lining 24 which affords large openings 26. I have found by experience that a filler of fibrous lignocellulose is particularly well adapted for the purpose as it will not be unduly felted when the bag is in use or stored. In the manufacture of the bag illustrated in Fig. 9, the filler 23 is first glued to a web of open-work lining leavingmargins 26 and 2l extending beyond the filler. Thereafter, a web of paper having cut out flaps I0 covering its perforatlons is glued at some points to the filler. 'I'he folded bandv 8 is made substantially in the manner heretofore described but it is provided by way of example that a fiat band 28 is doubled on and glued to both sides of a margin of the folded band 8. 'I'hereafter, the band 28 is glued to the margin 26 and to the adjacent edge of the wall 9, so that an air tight joint is obtained. The margin 21 of the lining 24 is,tightly attached to the wall 9 by means of a strip 29 which is glued to the inner side of the wall 9 and to the margin 21. The blank thus formed with the mouth portion is cut, folded and 'sealed in the same manner as mentioned above to constitute substantially a Satchel bag of paper or similar suitable combustible material. The manufacture of the bag can be carried out completely automatically on forming a continuous band composed of the outer wall,` a filler, a lining and a folded band which is fed through the machine. Possibly, a corrugated, air-pervious filler 3l,as shown in Fig. 10, may be substituted for the fibrous filler 23. As shown in Fig. 1l, the filler might be covered with a fibrous coating 46 of lignocellulose or another suitable material. Said coating serves to trap coarser impurities whilst the filler 9 serves to trap dust` or the like. In the embodiment shown in Fig. l2 the band 8 is glued to the inner side of the wall il. A strip 44 of paper or another suitable sheet material is glued to the margin 26 of the lining as well as to the band 8, so that an air tight joint is obtained. Such an attachment might be arranged also in the embodiment shown in Figs. 2 and 3. 'Ihe filler may be saturated 75 with one or more suitable matters adapted to adhere dust, absorb moisture of the air as well to refresh the air passing through the cleaner.'
As the bag with its mouth portion can be fiattened completely it can be enclosed hermetically within an envelope, the additional matters will not evaporate or be destroyed when the bags are stored. The bag inserted into the vacuum cleaner assumes when in use a substantially cylindrical shape conforming to the annular shape of its mouth, but it is likely to resume its original fiat shape when the suction effect is changed. Thus the porous or fibrous finer or coating has a selfcleaning tendency due to pulsatory movements of the bag Walls.
When using the bag now described, having a air straining filler or coating, no separate dust collector is needed. I have experienced that the bag having substantially the shape of. an ordinary commercial paper bag is sumciently resistant to withstand, without additional supporting means, the internal air pressure to which it is subjected when in use. For the purpose of vclearness the thickness of the fillers is shown exaggeratedly in Figs. 9 to 12.
Where in the accompanying claims I have defined the direction of extent of the annular flange portion of the bag mouth when applied in operating position in a vacuum cleaner as extending radially, it is to be construed as meaning that the flange need not be exactly radial, but that as long as it has an extent in the radial direction with respect to lthe bag axis, the purpose will be accomplished and the terms of the nently secured against unfolding at a distance from the end of said mouth portion corresponding to the desired width of said ange, said upper edge portion being free to be unfolded by bending the mouth portion to form said flange.
2. A vacuum-cleaner bag, having a collapsible body portion and a collapsible mouth portion having substantially the same width as said body por-tion and forming a longitudinal extension thereof, said collapsible mouth portion consisting of a strip attached at one edge to said body portion and having collapsible pleats extending in the longitudinal direction of said body portion. said pleats being stuck together at said edge, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular fiange extending laterally beyond said body portion for attachment to the vacuum cleaner.
3. A vacuum-cleaner bag, having a Vcollapsible body portion, a collapsible mouth portion of substantiallythe same Width as said body portion and forming a longitudinalextension thereof, said mouth portion consisting of a strip attached at one edge .to said body portion and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, and another strip adhesively applied to said edge of said pleated strip transversely to said body portion to retain said pleats in flatly folded condition at a distance from thev upper edge of said mouth portion, `said mouth portion being adapted to be bent outwards on unfolding the upper part of said collapsible pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to said vacuum cleaner.
4. A vacuum-cleaner bag, having a collapsible body portion and a collapsible mouth portion of substantially the same width as said body portion, said collapsible mouth portion forming a longitudinal extension of said body portion and having folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radi-- ally extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said pleats being formed to impart to said ange a polygonal periphery.
5. A vacuum-cleaner bag, having a collapsible body portion and a collapsible mouth portion of substantially the same width as said body portion, said mouth portion forming a longitudinal extension of said body portion and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said pleats having creases extending diagonally between their longitudinal edges.
6. A vacuum-cleaner bag, having a. collapsible body portion, a collapsible mouth portion of substantially the same width as said body portion, and a bottom which isfoldable in fiat relationship to said body portion and said mouth portion, said collapsible mouth portion forming a longitudinal extension of said body portion and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, saicimouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner.
'7. Alvacuum-cleaner bag, having a collapsible mouth portion comprising collapsible pleats extending longitudinally of the bag and being adapted to be bent outwards to form a substantially annular radially extending supporting.
flange for attachment to the vacuum cleaner, said pleats being secured against unfolding at a distance from the end of said mouth portion defining the width of said iiange, the difference between the circumferential length of the material forming said mouth portion and the circumferential length of said mouth portion when tion.. said collapsible mouth portion forming a longitudinal extension of said body portion and having collapsible folds forming pleats extending in the longitudinal direction of 'said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner.
9. A vacuum-cleaner bag, having a collapsible body portion composed of an outer wall and -a lining of fibrous air-straining material. and a collapsible mouth portion of substantially` the same width as said body portion, said mouth portion forming a longitudinal extension of said body portion beyond said lining and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said body portion and said mouth portion being collapsible to form a flat and smooth lining and envelope completely covering said lining.
10. A vacuum-cleaner bag having a collapsible body portion composed of an outer wall and a corrugated lining of air-straining material, and a collapsible mouth portion of substantially the same width as said body portion, said mouth portion forming a longitudinal extension of said bodyV portion beyond said lining and having collapsible folds forming pleats extending in the longitudinal direction of said body portion, said mouth portion being adapted to be bent outwards on unfolding pleats to form a radially extending substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, said body portion and said mouth portion being collapsible to form a flat and smooth lining and envelope completely covering said lining.
11. A vacuum-cleaner bag, having a collapsible body portion composed of an outer perforated wall and a lining of fibrous air straining material, a collapsible mouth portion having substantially the same width as said body portion and forming a longitudinal extension of said body portion beyond said lining and having collapsible folds forming pleats extending in the longitudinal direction o1' said body portion, said mouth portion being adapted to be bent outwards on unfolding said pleated folds to form a substantially annular flange extending laterally beyond said body portion for attachment to the vacuum cleaner, and a sealing strip for con` necting said lining to said outer wall, said mouth portion being attached to the inside of the upper edge of said outer wall and said strip extending transversely of said body portion and being attached at its upper edge to the inside of said mouth portion to prevent the upper lter edge from getting loose from said outer wall when said mouth portion is folded outwardly.
RAGNAR K. STERDAHL.
CERTIFICATE OF QORRECTI ON.
v Patent No. 32,257,169. April 8, 19h11..
RAGNAR K. 'sTERDAHL It is hereby certified that error appears in the printed specification of the above numbered patent reqniring correction as follows: Page 2, second column', line 70? claim, before the word "mouth" insert -collalpsib1e;
page 5, second colmnn, line 57, claim lO', before "pleats" insert -said;
and that the v:said Letters Patent should be read with this correction therein that the same may conform to the recordof the case in the Patent Office.
Signed and sealed this 27th day of May, A, D. 1914.1.
Henry Van Arsdale, -(Seal) Acting Commissioner of Patents.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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SE512945X | 1937-03-19 |
Publications (1)
Publication Number | Publication Date |
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US2237499A true US2237499A (en) | 1941-04-08 |
Family
ID=20311012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US195370A Expired - Lifetime US2237499A (en) | 1937-03-19 | 1938-03-11 | Vacuum-cleaner bag |
Country Status (6)
Country | Link |
---|---|
US (1) | US2237499A (en) |
BE (1) | BE427037A (en) |
DE (1) | DE704513C (en) |
FR (1) | FR835465A (en) |
GB (1) | GB512945A (en) |
NL (1) | NL49777C (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2560827A (en) * | 1946-08-21 | 1951-07-17 | Hoover Co | Suction cleaner |
US2593328A (en) * | 1948-07-13 | 1952-04-15 | John W Meaker | Perforated multiple ply bag |
US2700430A (en) * | 1951-09-01 | 1955-01-25 | Hoover Co | Suction cleaner |
US2853154A (en) * | 1956-08-27 | 1958-09-23 | American Air Filter Co | Pocket-type air filters |
US3150403A (en) * | 1959-03-24 | 1964-09-29 | Electrolux Ab | Tank type suction cleaner |
US3365864A (en) * | 1963-02-23 | 1968-01-30 | Tokyo Electric Co Ltd | Vacuum cleaner |
US3452520A (en) * | 1967-05-25 | 1969-07-01 | Studley Paper Co | Vacuum cleaner filter bags |
US3456799A (en) * | 1966-06-22 | 1969-07-22 | Leo J Musial | Filter unit for vehicle gas tanks |
US3498031A (en) * | 1966-09-27 | 1970-03-03 | Studley Paper Co | Filter bag having a felt-like insert |
US5242588A (en) * | 1991-09-26 | 1993-09-07 | Reese Ronald K | Filter unit assembly |
WO1998022014A1 (en) * | 1996-11-21 | 1998-05-28 | Anders Rydin | A dust separator |
US5914416A (en) * | 1994-04-29 | 1999-06-22 | Vorwerk & Co. Interholding Gmbh | Device for separating solid or liquid particles from a stream of gas |
US20040187251A1 (en) * | 2001-10-01 | 2004-09-30 | Heribert Schwarz | Device for sucking up particles to be collected and a floor vacuum cleaner |
US6840385B2 (en) * | 2000-12-19 | 2005-01-11 | Sidney Goldman | Lateral dispersion filter basket |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE470437A (en) * | 1946-01-18 | |||
US2564845A (en) * | 1946-03-07 | 1951-08-21 | Marathon Corp | Disposable bag for vacuum cleaners |
US2800194A (en) * | 1953-03-09 | 1957-07-23 | Peek Roelof Theodorus | Disposable dust bag |
NL95572C (en) * | 1953-05-11 | |||
US2813596A (en) * | 1953-12-02 | 1957-11-19 | Kimberly Clark Co | Disposable filter bag |
NO137844C (en) * | 1976-07-16 | 1978-05-24 | Anders Engen | VACUUM BAG. |
DE2947613A1 (en) * | 1979-11-26 | 1981-05-27 | Arwed Löseke Papierverarbeitung und Druckerei GmbH, 3200 Hildesheim | Filter bag for industrial vacuum cleaners - has filter mat set in cut-out for easy mechanical mass production |
-
0
- NL NL49777D patent/NL49777C/xx active
- BE BE427037D patent/BE427037A/xx unknown
-
1938
- 1938-03-11 US US195370A patent/US2237499A/en not_active Expired - Lifetime
- 1938-03-16 DE DEO23481D patent/DE704513C/en not_active Expired
- 1938-03-18 GB GB8352/38A patent/GB512945A/en not_active Expired
- 1938-03-19 FR FR835465D patent/FR835465A/en not_active Expired
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2560827A (en) * | 1946-08-21 | 1951-07-17 | Hoover Co | Suction cleaner |
US2593328A (en) * | 1948-07-13 | 1952-04-15 | John W Meaker | Perforated multiple ply bag |
US2700430A (en) * | 1951-09-01 | 1955-01-25 | Hoover Co | Suction cleaner |
US2853154A (en) * | 1956-08-27 | 1958-09-23 | American Air Filter Co | Pocket-type air filters |
US3150403A (en) * | 1959-03-24 | 1964-09-29 | Electrolux Ab | Tank type suction cleaner |
US3209522A (en) * | 1959-03-24 | 1965-10-05 | Electrolux Ab | Dust bag holder for suction cleaners |
US3365864A (en) * | 1963-02-23 | 1968-01-30 | Tokyo Electric Co Ltd | Vacuum cleaner |
US3456799A (en) * | 1966-06-22 | 1969-07-22 | Leo J Musial | Filter unit for vehicle gas tanks |
US3498031A (en) * | 1966-09-27 | 1970-03-03 | Studley Paper Co | Filter bag having a felt-like insert |
US3452520A (en) * | 1967-05-25 | 1969-07-01 | Studley Paper Co | Vacuum cleaner filter bags |
US5242588A (en) * | 1991-09-26 | 1993-09-07 | Reese Ronald K | Filter unit assembly |
US5914416A (en) * | 1994-04-29 | 1999-06-22 | Vorwerk & Co. Interholding Gmbh | Device for separating solid or liquid particles from a stream of gas |
WO1998022014A1 (en) * | 1996-11-21 | 1998-05-28 | Anders Rydin | A dust separator |
AU719999B2 (en) * | 1996-11-21 | 2000-05-18 | Reidar Liland | A dust separator |
US6224645B1 (en) | 1996-11-21 | 2001-05-01 | Anders Rydin | Dust separator |
CN1129397C (en) * | 1996-11-21 | 2003-12-03 | 安德斯·吕丁 | Dust separator |
US6840385B2 (en) * | 2000-12-19 | 2005-01-11 | Sidney Goldman | Lateral dispersion filter basket |
US20040187251A1 (en) * | 2001-10-01 | 2004-09-30 | Heribert Schwarz | Device for sucking up particles to be collected and a floor vacuum cleaner |
US7367084B2 (en) * | 2001-10-01 | 2008-05-06 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Device for sucking up particles to be collected and a floor vacuum cleaner |
EP2090209B1 (en) | 2001-10-01 | 2016-01-06 | BSH Hausgeräte GmbH | Canister suction cleaner for aspirating and collecting particles |
EP2275016B1 (en) | 2001-10-01 | 2020-04-01 | BSH Hausgeräte GmbH | Suction cleaner for aspirating and collecting particles |
Also Published As
Publication number | Publication date |
---|---|
NL49777C (en) | |
GB512945A (en) | 1939-09-29 |
DE704513C (en) | 1941-04-01 |
FR835465A (en) | 1938-12-22 |
BE427037A (en) |
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