Abstract: A holder (10) for a vacuum cleaner dust bag which is removably arranged in the vacuum cleaner and includes a sleeve (14) on which an open end (13) of the bag (11) is received. Two or more clamping blocks (17) at least partly surround the sleeve and can be moved in a radial direction toward and away from the sleeve in order to secure the dust bag to the holder and release the dust bag from the holder.

Abstract: A dust container for vacuum cleaners includes a bag and a front plate. The bag is made of a material that, essentially, is permeable only to air. The front plate encloses a suction opening in the bag. The front plate is of a shape that is independent of the vacuum cleaner model in which the dust container is to be used. A mechanism for attaching a mounting plate to the front plate is also provided for the purpose of fitting the dust container in the vacuum cleaner. The mechanism for attaching the mounting plate to the front plate is designed specifically for the vacuum cleaner in which the dust container is to be used.

Abstract: A disposable reusable vacuum cleaner bag for a vacuum cleaner of the home appliance type is disclosed. The vacuum bag has an inlet for receiving materials from the vacuum cleaner, an apparatus for attaching the bag to the vacuum cleaner, and a resealable outlet for removing collected vacuumed materials from the bag whereby the bag is reusable in a next dirt collection/disposal cycle. The outlet may be sealed by a compression fit polymer fastener, a zipper, hook and loop fasteners, or any other suitable closure.

Abstract: A dust filter bag (1) for a vacuum cleaner (3), with a retaining plate (H). The bag is constructed of a solid paper material, such as cardboard for example, to which a dust bag (12) is joined, for example adhesively, with a closure flap (13) turned towards the inside (15) of the dust bag (12), hinged on the retaining plate (H), which closure flap (13) is openable against a spring action and, in closed condition, keeps closed an opening (O) in the retaining plate (H). To make the dust filter bag simpler in construction and more advantageous as regards use, a band-like spring element (F) is attached to the closure flap (13) in such a way that, in the closed condition (FIG. 4), there is formed a clearance (Y) between a band end (E--E) and a hinge axis (14), lying outside of the band, of the closure flap (13), where the hinge axis (14) is provided turned towards the inside (15) of the dust bag (1).

Abstract: A manually closable collar for a vacuum cleaner bag is adapted to be secured to an air bag. The collar is formed from a single blank of relatively rigid material folded to define three overlying and generally planar panels. Each of the panels defines an aperture therethrough, the apertures being initially aligned in the collar to enable the passage of air therethrough and into the air bag. The middle panel of the collar defines (i) a fixed raceway element adhesively secured to at least one of the outer panels of the collar, and (ii) a detachable slider element secured to the raceway element only by various nicks. The slider element has a first portion defining the aperture of the middle panel and a second portion which is unapertured.

Abstract: A connection device between a suction pipe and a vacuum cleaning unit, the unit having a closing flap (5) displaceable between an open position and a closed position at the suction inlet of the unit by using a control member (11) as well as a component for locking the nozzle (20) to the suction unit. The suction unit is a vacuum cleaner having a dust bag (1), the closing flap (5) being arranged on the bag (1), and a control member (11) cooperating with the nozzle (20) by means of a cooperation device so that the locking of the nozzle (20) is possible as soon as the flap (5) is in its open position. Application to vacuum cleaners with disposable bags.

Abstract: The invention pertains to a filter bag (8) for a vacuum cleaner (1), with a retainer plate (16) made of a cardboard-paper material that can be attached to a dust bag (37), for example by gluing, and that has a sealable opening (19) for a suction tube (vacuum connector (18)) of a vacuum cleaner (1), where the opening (19) can be closed off with a separate closure piece (V) which can be moved from an open position to a closure position, being slid between two tiers (38, 40). For greater ease of handling the invention proposes that the closure piece (V) be practically fully enclosed in an outer contour of the retainer plate (16) in the open position and in the closure position and that the closure piece (V) lie exposed in a recess (57) of the uppermost tier (38) separate from the opening (19), the longitudinal extension of the recess (57) conforming to the closure piece (V).

Abstract: A manually closable collar for a vacuum cleaner bag is adapted to be secured to an air bag. The collar is formed from a single blank of relatively rigid material folded to define three overlying and generally planar panels. Each of the panels defines an aperture therethrough, the apertures being initially aligned in the collar to enable the passage of air therethrough and into the air bag. The middle panel of the collar defines (i) a fixed raceway element adhesively secured to at least one of the outer panels of the collar, and (ii) a detachable slider element secured to the raceway element only by various nicks. The slider element has a first portion defining the aperture of the middle panel and a second portion which is unapertured.

Abstract: An obturation device for the disposable bag (1) of a vacuum cleaner, the bag (1) having a rigid area (1a) in the vicinity of a closable filling inlet, in order to fix the bag (1) to a frame part (13) of the vacuum cleaner, as well as a flap (5) for closing the bag (1) , the flap being displaceable by rotation between an open position and a closed position of the filling inlet in the extension plane of the rigid area (1a). The closing flap (5) is mounted in the rigid area (1a) which is provided with a profiled perforation (4a) whose shape and contour form a guiding structure (4) within which the closing flap (5) can move. Application to disposable bags for vacuum cleaners.

Abstract: A vacuum bag for use with a vacuum device having a dirty air vacuum inlet has a conventional self-sealing collar including a pair of apertured planar panels, an apertured resilient membrane therebetween, and a finger extending at least partially across the outer panel aperture. However the collar is made self-aligning with a vacuum inlet by adding a third planar panel disposed parallel to and outwardly of the pair of panels. The third panel defines a respective third aperture therethrough configured and dimensioned for receipt of a vacuum inlet therethrough and aligned with the apertures of the pair of panels. The third aperture is of a thickness to facilitate blind placement of the collar on a vacuum inlet. In a combination of the bag and a vacuum device, the dirty air inlet extends through the three panel apertures as well as the membrane aperture of the collar.

Abstract: A pressure relief valve for both reducing pressure in a vessel when the pressure of a mixed media combination made up of a mixture of gaseous and nongaseous components and contained in the vessel is at a relief valve actuating pressure, and for filtering nongaseous components from a mixed media combination flowed from the valve. The valve includes a housing with an inlet and a discharge port. The housing inlet is disposed in mixed media combination receiving communication with the vessel. The housing defines a housing chamber and the housing also includes a valve member movable within in the chamber between an occluding position, relative to the inlet when the vessel pressure is not at the actuating pressure, and a non-occluding position, relative to the inlet, when the vessel pressure is at the actuating pressure. The pressure relief valve also includes a filter device expandable by the mixed media combination when the vessel pressure is at the actuating pressure.

Abstract: A vacuum bag for use with a vacuum device having a dirty air vacuum inlet has a conventional self-sealing collar including a pair of apertured planar panels, an apertured resilient membrane therebetween, and a finger extending at least partially across the outer panel aperture. However the collar is made self-aligning with a vacuum inlet by adding a third planar panel disposed parallel to and outwardly of the pair of panels. The third panel defines a respective third aperture therethrough configured and dimensioned for receipt of a vacuum inlet therethrough and aligned with the apertures of the pair of panels. The third aperture is of a thickness to facilitate blind placement of the collar on a vacuum inlet. In a combination of the bag and a vacuum device, the dirty air inlet extends through the three panel apertures as well as the membrane aperture of the collar.

Abstract: A method and a device are provided for cutting off a gas flow through a filter element in a ceramic filter of high-temperature type upon breakage of the filter element, wherein a pulling member which is fixed to the lowermost part of the filter element causes a valve to be closed upon breakage of the filter element, whereby the outlet of the filter element for normally cleaned gases is closed.

Abstract: A vacuum cleaner filter bag has a connection member, whose side edge parts are adapted to be inserted into holding grooves in the vacuum cleaner. A substantially tabular or plate-like, board-like, stiff main body of the connection member possesses a fitting opening for fitting same onto the connector tube of a vacuum cleaner. The main body carries and guides a closing slide with a passage opening, which is able to be drawn out from an open position clearing the fitting opening into a closed setting by way of a handle part. On the side edge parts there is respectively a holding rail able to be inserted into the adjacent vacuum cleaner groove, such holding rail extending from the front to the rear as far as a rail attachment point. The holding rails are connected with the main body at the rail attachment point but otherwise separated or separable from the same.

Abstract: A vacuum cleaner filter bag has a connection member with an essentially tabular, board-like, stiff main body, which has a fitting opening for fitting on a vacuum cleaner connector tube. The main body guides a closing slide with a passage opening, which by way of a handle part is able to be moved out from an open position clearing the fitting opening into the closed position. The main body is divided into a holding ring surrounding the fitting opening on the outer side of the connection member and a closing slide guide: part constituted by the rest of the main body, the holding ring and the closing slide guide part being connected together at an attachment joint while being otherwise separate or separable from each other. In the position of use, with the connection member seated on the connector tube, the closing slide guide part is able to be pivoted away from the connector tube so that the closing slide comes clear of the connector tube and is able to be drawn into its closed setting.

Abstract: A dust filter bag for a vacuum cleaner, having a holding plate (1) of a cardboard paper material, which holding plate (1) has a sealing-closable opening (9) for a suction pipe of a vacuum cleaner, the opening (9) being adapted to be closed from the outside by a separate closure tab (10) which has an insertion region, and, in order to obtain an improved dust filter bag, the cardboard-paper material is developed in three layers (layers a, b, c) in the region of the opening (9) and in at least two layers in the remaining region of the holding plate (1), a rubber gasket (11) being gripped between two layers, preferably the second and third layers (b, c).

Abstract: A filter bag for a vacuum cleaner possesses a substantially plate-shaped connection member with a stationary two-part base body and a sliding door arranged between the two layers of the base body. The layers of the base body have aligned passage openings and the sliding door has a through opening, which in the open position of the sliding door is aligned with the passage openings. In the closed position the sliding door shuts off the passage openings. The base body has at least one abutment element, which fits into an abutment recess in the sliding door, the rim of the abutment recess constituting a terminal abutment striking against the abutment element at least in the closed position of the sliding door.

Abstract: A method and a device are provided for the adsorption and chemisorption, respectively, of gaseous components out of a gas stream. The dust return is achieved within a fabric filter. A combination comprising a nozzle and a trap shaft are disposed in the lower part of the fabric filter. Thereby both a changeable gas return as well as a dust return changeable and variable over wide ranges can be effected. This method is performed in a total filter plant with several filter chambers. One of the filter chambers is alternatingly cleaned for the discharge of the reaction products and simultaneously at least one filter chamber is operated in on-line operation.

Abstract: A depth filtration method employing a depth filter media sheet, a method of forming the depth filter media sheet and the structure of the depth filter media sheet are described wherein the depth filter media sheet is formed from a wet strength layer and a filter septum layer, the filter septum layer being substantially thicker than the wet strength layer and being formed as a matrix from at least one fiber selected to provide substantial loft and pore structure throughout the filter depth of the filter septum layer, the wet strength layer and the filter septum layer being arranged adjacent each other and preferably bonded together with a lateral surface of the filter septum layer being substantially totally exposed for receiving fluid to be filtered with the porous matrix of the filter septum layer being available to receive and capture particulate solids from the fluid, the filter septum layer also preferably including a second fiber or additional fibers selected in combination with the first fiber for defin

Abstract: A dust filter bag (1) for a vacuum cleaner, having a holding plate (2) which has a tightly closed opening (3) for a suction pipe of a vacuum cleaner, the opening (3) being adapted to be closed from the outside by a separate closure flap (5) which has an insertion region (6). In order to achieve more favorable handling, in particular, of the closure flap, the closure flap (5) is detachably connected to the holding plate (2) in its open position.

Abstract: A duct filter bag (1) for a vacuum cleaner having a holding plate (2, 15) which has a tightly closed opening (4) for a pipe connection of a vacuum cleaner, the opening being adapted to be closed from the outside by a separate closure flap (5) which has an insertion region (8, 9, 11). In order to make the dust filter bag (1) more favorable in use, the closure flap (5) is hinged to the holding plate (2) laterally of its region of swing (V).

Abstract: The invention relates to an electric vacuum cleaner having a filter bag intermediate carrier disposed between a filter cassette arranged above a motor-driven blower and the motor housing. The intermediate carrier is pivotally mounted via a hinge and has guide cams which dip into engaging recesses of a base plate of the filter bag. The vacuum cleaner apparatus can only be operated with filter bags which are specific to this apparatus. Safety cams are formed on the intermediate carrier and follow the inner wall surface of the filter cassette when the intermediate carrier is closed. Catches are formed on the inner wall surface but do not catch the safety cams if an authorized filter bag is placed in the filter cassette. However, if an unauthorized filter bag is placed in the filter cassette, then the structure of this filter bag causes the safety cams to deflect and catch in the catches thereby preventing the operator from completely closing the intermediate carrier on the filter cassette.

Abstract: A connecting member for filter bags or the like used for collecting dust has a main body secured to the filter bag, which main body has a multi-ply structure of board or cardboard. The main body has a passageway therethrough for facilitating the passage of dust into the filter bag. A slide gate is arranged on the main body between two plies of the main body and a handle thereon projects laterally beyond the main body and is movable between a moved in position leaving the passage opening uncovered and a moved out position shutting it. The main body is folded from a single piece of material cutout along preset fold lines. The plies of the main body placed on top of each other after folding are bonded together. The slide gate is at least partly a component of the cutout and is connected with the rest of the cutout via preset tear lines so that the slide gate may be torn off to the side after folding and bonding.

Abstract: A novel vacuum cleaner bag is disclosed comprising a closed receptacle having an inlet orifice, the bag being formed from a sheet containing at least 65% flashspun polyolefin fibers. The vacuum cleaner bag is suitable for conventional vacuum cleaners and provides efficient removal of particulate matter, especially soil particles less than 10 microns in size.

Abstract: A vacuum cleaner bag is described which has a sealing closure device for an inlet opening in a collar of the vacuum cleaner bag. A disc, partially die-cut out of the collar or a separate disc attached to the collar is arranged for hinged movements between a covering position wherein the inlet opening is effectively closed and sealed and and uncovering position wherein the inlet opening is accessible for passage of an inlet fitting of a vacuum cleaner. A locking mechanism is provided for positively locking the hinged cover to disc in its covering position to prevent inadvertent escape of debris from a filled vacuum cleaner bag after removal from the vacuum cleaner. The locking mechanism may consist of a projecting finger on the disc or cover which is forced beyond the inlet opening and snaps behind the collar, or the projecting finger may be secured with any suitable fastener, such as hook and loop tape.

Abstract: Air leakage passageways formed by an elongated sealing finger deflected through a sealable collar of a vacuum cleaner bag are substantially eliminated by the use of straddling tabs or an additonal elastic membrane across the collar opening which assure a total seal between the collar opening and the vacuum cleaner inlet fitting when the latter extends through the opening.

Abstract: An electric insect trapping device having a vacuum pump in a hollow body and a removable nozzle, and an insect receiving cage, or container, for trapped insects. The nozzle, when attached to the hollow body, has a rearwardly extending part that penetrates through a self-closing opening in the cage. When the nozzle is detached from the hollow body the opening in the cage automatically closes, thus preventing the contents thereof from escaping.

Abstract: The invention relates to an electric vacuum cleaner and the corresponding filter bag (7) which can be removed from a chamber (6) after opening and separating a socket connection. In order to achieve easier, cleaner handling upon changing the filter bag, the chamber (6) is separable by disengagement in a region of the shaft, about which the chamber can pivot, (14) after swinging separation from the filter bag (7).

Abstract: The present invention relates to an arrangement of filter bags in electric vacuum cleaners in which the filter bag has a bottom plate which has an insertion opening for a fan-side air-blast socket and at least one side-edge indentation (28) and is arranged as a transverse wall in a filter-bag chamber (6) which is adjacent a motor-fan housing (5) and can be lifted off from it. A second side-edge indentation is disposed opposite first side-edge identation and housing-side profections extend into both indentations and protrude beyond the lower side of the bottom plate.

Abstract: A mesh filter bag fits over a metal support. The bag has opposed edges longitudinally extending along one side of the mesh filtering bag from the bottom of the bag to the top of the bag. A rope extends from the filtering bag bottom along one opposed edge over the top and along the other opposed edge to the bottom. The opposed edges are held in sealing engagement by a tube.

Abstract: A mounting collar for a vacuum cleaner bag comprising three or more panels defined from a unitary blank and adhesively bonded in overlying relation to each other. The panels incorporate central aligned openings therethrough which, either in and of themselves or with an adhesively secured elastomeric sheet, provide for a sealing to the exhaust tube of a vacuum cleaner. The blank and the individual panels formed therefrom are from a low caliper stock paperboard material within the range of 15-30 points (0.015 inch to 0.030 inch). The intermediate panel or panels of the overlying panels are peripherally smaller than the outer panels and have the openings therein peripherally larger than the aligned openings in the outer panel.

Abstract: An electric vacuum cleaner having a chamber arranged above the motor housing to receive a filter bag the side of which facing the motor housing is in valve-closed socket-connection communication with the fan-air channel and which can be removed from the chamber after opening and separating the socket connection. The filter bag is in socket-connection communication with a filter-bag intermediate support which is carried along upon the swinging open of the chamber and which has the valve-closure member and from which the filter bag can be separated somewhat on the other side of the vertical position of the cross-sectional plane of the socket connection.

Abstract: A special bag assembly provides a primary material collection receiver to efficiently, effectively, and safely collect, remove, and dispose asbestos and other hazardous material without exposing surrounding personnel to the collected asbestos or other hazardous material. The primary material collection receiver can have a porous or perforated inner bag positioned within the interior of a solid imperforate bag, a perforated inner shell to accommodate expansion of the bags, a shroud to prevent hazardous material from contaminating the outside of the outer bag, and a vacuum tank surrounding the shroud.

Abstract: A special bag assembly provides a primary material collection receiver to efficiently, effectively, and safely collect, remove, and dispose asbestos and other hazardous material without exposing surrounding personnel to the collected asbestos or other hazardous material. The primary material collection receiver has a porous or perforated inner bag positioned within the interior of a solid imperforate bag, a perforated inner shell to accommodate expansion of the bags, a shroud to prevent hazardous material from contaminating the outside of the outer bag, and a vacuum tank surrounding the shroud.

Abstract: A dust collector including two tubes which communicate through an interconnecting conduit. A first tube operates as a cyclone which separates a great fraction of dust or solid components from the incoming air and collects the same in a bag at the bottom of the tube. The second tube includes a filter unit composed of a coarser filter as well as a surrounding fine filter, the filter unit receiving the pre-purified air from the cyclone tube through the interconnecting conduit and separating the remaining dust particles therefrom.

Abstract: A filter cartridge for filtering fluids comprising: a cylindrical porous support tube which is permeable to the fluid to be filtered; at least one layer of boro-silicate glass filter paper being wrapped around the cylindrical support; a porous sleeve including a wall having a longitudinal slit therein to allow wrapping of the sleeve around the filter paper; and a zipper affixed to the wall which closes the slit and maintains the position of the glass filter paper without damage to the paper. Also disclosed is a method for manufacturing a filter cartridge having as a principle filtering element a boro-silicate glass paper which is very fragile and can be seriously degraded by crushing. The method comprises wrapping at least one layer of boro-silicate glass paper around a cylindrical porous support; wrapping a cylindrical porous sleeve including a wall having a longitudinal slit therein around the filter paper to secure and protect the filter paper; and closing the slit by closing a zipper attached to the wall.

Abstract: A dust collecting bag with a central opening in the endwall thereof, which opening can be covered and uncovered by a cover flap hinged on the endwall of which it constitutes an integral part so that a portion of its free edge opposite the hinged mounting is positioned within the area of the opening. The central opening has at least one locking flap disposed along a portion of the edge opposite the hinged mounting of the cover flap and the portion of the free edge of the cover flap within the area of the opening has slits extending from the edge, with the portion of the cover flap defined by the slits being pivotable out of the plane defined by the remainder of the cover flap. The locking flap bridges the space between the cover flap and the edge of the opening.