Abstract: A vacuum cleaner includes a body having a cavity, an outlet for cleaned air, a filter removably mounted in the cavity upstream of the outlet, at least one device mounted in the body upstream of the filter for separating and collecting dirt and dust entrained in an induced airflow through the cleaner, and a closure for closing an opening in the cavity, the closure being openable for providing access to the filter and separation device through the opening. An arm extends into the cavity for engaging a formation on the filter, the latter holding the arm in a retracted position. If the filter or a component of the separation device is omitted or incorrectly inserted in the body, the arm adopts an extended position and prevents the closure from being closed. In this manner the user is immediately alerted to the fact that the filter or a component of the separation device is not correctly in-situ and remedial action can be taken.

Abstract: A floor cleaning apparatus includes a housing having a nozzle assembly and a canister assembly. The nozzle assembly includes a suction inlet. Both a suction generator and a dirt collection assembly are carried on the housing. The dirt collection assembly includes a dirt cup, a shroud concentrically received within the dirt collection chamber defined by the dirt cup and at least one rib projecting from the shroud toward the bottom wall of the dirt cup. The rib is positioned so as to reduce air turbulence in the dirt collection chamber between an airflow guide on the shroud and the bottom wall of the dirt cup.

Abstract: A bagless vacuum cleaner includes a separating unit for separating dirt and dust from a dirt-laden airflow which is drawn in by the cleaner. The separating unit has a chamber with collection areas for collecting dirt and dust which is separated from the airflow. A base of the separating unit is movable between a closed position and an open position. A dividing wall between the collection areas is arranged so that its end is spaced from the base by different distances at different respective regions. This enables an enlarged opening, by which dirt and dust can be emptied from the chamber, to be provided, which facilitates emptying of the chamber.

Abstract: An upright surface cleaning apparatus comprises a floor cleaning head having a dirty air inlet and an upright section moveably mounted to the surface cleaning head. The surface cleaning apparatus also includes an air flow passage extending from the dirty air inlet to a clean air outlet. The air flow passage includes a conduit section. The surface cleaning apparatus also includes a suction motor and an air treatment member positioned in the air flow passage, provided in one of the floor cleaning head and the upright section. The conduit section has an inlet end and an outlet end. The inlet end is rotatably connected to the air flow passage about an axis parallel to air flow through the inlet end, and the outlet end is rotatably connected to the air flow passage about an axis parallel to air flow through the outlet end.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor is positioned in the air flow path. At least one cyclone chamber positioned in the air flow path. An associated dirt collection chamber is optionally exterior the cyclone chamber. A pre-motor filter is positioned downstream of the cyclone chamber and upstream of the suction motor. The pre-motor filter has an upstream side and a downstream side. The pre-motor filter may overlie at least a portion of the suction motor and the cyclone chamber.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor is positioned in the air flow path. At least one cyclone chamber is positioned in the air flow passage. An associated dirt collection chamber is exterior to the cyclone chamber. The cyclone chamber and the suction motor are positioned side by side and have generally parallel longitudinal axes. The dirt collection chamber may surround part of the suction motor. Alternately, or in addition, a pre-motor filter having an enhanced surface area may be provided by configuring the pre-motor filter to extend outwardly of the pre-motor filter, such as by overlie part of the cyclone chamber or the dirt collection chamber.

Abstract: The surface cleaning apparatus includes a cyclone positioned in am air flow passage. The cyclone has a cyclone air inlet and a cyclone air outlet, a dirt outlet spaced from the cyclone air inlet, a cyclone chamber wall and a longitudinal axis. The surface cleaning apparatus also includes a dirt collection chamber in communication with the dirt outlet. The dirt collection chamber has an openable wall mounted to the surface cleaning apparatus by a hinge and a centrally positioned longitudinal axis, the openable wall has a centre and a hinge side. The surface cleaning apparatus also includes a plate positioned at an interface of the dirt collection chamber and the cyclone. The plate is moveably mounted to the openable wall. The surface cleaning apparatus also includes a biasing member biasing the plate towards the hinge side of the openable wall a suction motor positioned in the air flow passage.

Abstract: An upright surface cleaning apparatus comprises a floor cleaning head having a dirty air inlet, and an air flow passage extending from the dirty air inlet to a clean air outlet. An upright section is moveably mounted to the surface cleaning head between a storage position and an in use position. The upright section comprises a filtration member and a suction motor provided in the air flow passage. The suction motor has an air inlet end, an opposed distal end, and an air inlet direction. The upright section further comprises a motor housing. The motor housing comprises a motor section in which the suction motor is provided. The motor section has a first end at the air inlet end of the suction motor and an opposed second end at the distal end of the suction motor. An openable post motor filter chamber is provided in the motor housing and has an inlet end and an outlet end. At least a portion of the filter chamber is provided in the motor section.

Abstract: The invention relates to a device for cleaning a ground surface of artificial turf with filler, comprising a frame, moving and supporting means arranged on the frame for the purpose of moving the device over the ground surface, and processing means arranged on the frame for processing a flow of material taken up from the ground surface, such as dirt and filler, wherein the processing means comprise: a take-up means, a separating means, a collecting means, a feedback means. The invention is characterized in that the processing means further comprise a dust suction device, wherein the dust suction device comprises at least a pump means for creating an underpressure and a dust inlet which is connected to a suction side of the pump means and which is arranged in the vicinity of the separating means in the device.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor is positioned in the air flow path. At least one cyclone is positioned in the air flow passage. An associated dirt collection chamber is exterior to the cyclone. The cyclone and the suction motor are positioned side by side and have generally parallel longitudinal axes. The dirt collection chamber may surround part of the suction motor. Alternately, or in addition, a pre-motor filter having an enhanced surface area may be provided by configuring the pre-motor filter to extend outwardly of the pre-motor filter, such as by overlie part of the cyclone or the dirt collection chamber.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. The surface cleaning apparatus further comprises a cyclone comprising a cyclone air outlet and positioned in the air flow passage downstream of the dirty air inlet. A suction motor is provided in the air flow passage downstream of the cyclone. A pre-motor filter is upstream of the suction motor and downstream of the cyclone. The pre-motor filter has an upstream side and a downstream side. The surface cleaning apparatus further comprises a bleed valve having an air inlet and an air outlet. The air outlet is positioned between the suction motor and the downstream side of the pre-motor filter and facing the downstream side of the pre-motor filter.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor positioned in the air flow passage. A cyclone is removably mounted to the surface cleaning apparatus and positioned in the air flow path. The cyclone has a cyclone air inlet and a cyclone air outlet. The cyclone is mountable to the surface cleaning apparatus in a mounting direction. An air inlet seal is positioned in a first plane and seals the cyclone air inlet to the airflow passage. An air outlet seal is positioned in a second, non-orthogonal plane and seals the cyclone air outlet to the airflow passage. The air inlet seal and the air outlet seal are concurrently sealed by movement of the cyclone in the mounting direction.

Abstract: A vacuum cleaner is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is integrally formed as part of a cyclone bin. The present invention may be adapted for use with cyclonic separation devices of all types, including single- and multi-stage cyclonic separators.

Abstract: A vacuuming device has a housing having an air intake and at least one air outlet opening. A suction motor is arranged in the housing. At least two filters are arranged in the housing and each has a flow passage to the suction motor, wherein dirty air sucked into the housing by the suction motor passes through the at least two filters and exits through the at least one air outlet opening. The at least two filters each are provided with a cleaning device and a valve device adapted to close off the flow passage to the suction motor, respectively, as needed.

Abstract: A vacuum cleaner includes a cyclonic airflow chamber that facilitates the separation of contaminants from a suction airstream. The airflow chamber includes a chamber inlet and a chamber outlet, with the chamber inlet being fluidically connected with at least one of a suction nozzle and an above-the-floor cleaning tool. An exhaust filter housing includes a suction duct and an exhaust plenum, with the suction duct communicating with the chamber outlet. A suction source housing includes an open end communicating with the exhaust plenum and a closed end. A suction source is positioned within the suction source housing to define an annular exhaust flow passageway surrounding the suction source from the housing closed end to the housing open end. The suction source includes a suction inlet communicating with the suction duct and an exhaust outlet communicating with the housing closed end.

Abstract: An upright vacuum cleaner for cleaning a surface includes an upper body with a dust collection container received therein and a base unit with a front portion with respect to the travel direction of the vacuum cleaner. At least one electrical load is disposed in the front portion of the base unit. A carriage is provided to move the base unit on the surface. The vacuum cleaner includes a tilting joint operable to provide relative tilting between the upper body and the base unit about a tilting axis that is horizontal when the vacuum cleaner is in a position of use. At least one cable is routed between the upper body and the at least one electrical load. A plurality of cable ducts are disposed in the vicinity of the tilting axis and configured to receive the at least one cable.

Abstract: A vacuum cleaner is provided. The vacuum cleaner includes a cleaner body including a suction motor, a dust separation device communicated with the cleaner body, the dust separation device separating dusts, a dust container separably mounted on the cleaner body, the dust container including a dust storage part storing the dusts separated by the dust separation device, a compressing member compressing the dusts stored in the dust storage part, a magnetic member seat part disposed at the dust container, a magnetic member seated on the magnetic member seat part, a cover coupled to the magnetic member seat part to cover the magnetic member, and a magnetism detection unit disposed at the cleaner body to detect magnetism of the magnetic member.

Abstract: Described is a filter bag for a vacuum cleaner which may include a tubular bag with a closed free end area and an opposed, at least partially closed area as well as with a retaining plate. The bag is made from a bag material having at least one non-woven layer, and the at least partially closed area is folded forming a bottomPlies of the bag material which lie the one above the other are formed in areas, and is at least partially closed by a weld seam extending centrally in the bottom, the plies of the bag material which lie the one above the other being at least partially connected to one another.

Abstract: An upright vacuum cleaner (A) includes an upright housing section (B) and a nozzle section (C). A cyclonic airflow dirt and dust separating chamber (54) is defined in said upright housing section. A suction source (E) pulls air and entrained dirt, dust, and other contaminants through a main suction opening (26) formed in the underside (24) of the nozzle and into the cyclonic airflow chamber (54). The cyclonic airflow chamber causes the suction airstream to travel in a cyclonic path such that the entrained contaminants are separated therefrom and deposited into a dirt container (52) that defines the chamber (54). A main filter element (K) filters residual contaminants from the suction airstream between the chamber and the suction source. The main filter element is preferably made from high-density polyethylene porous filter media.

Abstract: A cleaning appliance includes a main body and a collecting chamber releasably held on the main body. The collecting chamber includes a closure member which is movable between a closed position and an open position in which the collecting chamber can be emptied and an actuating member adapted and arranged to release the collecting chamber from the main body and, when the collecting chamber is released from the main body, to release the closure member from the closed position. By providing such an arrangement, a single actuating member can be used to release the collecting chamber from the main body of the cleaning appliance and also to open the closure member to empty the collecting chamber. A single actuating member is less complex, requires less space and is more intuitive for a user to operate.

Abstract: A cleaner which removes dirt from an additional cleaning apparatus automatically is provided. The cleaner includes a cleaning apparatus which is removably mounted in the cleaner and is dismounted from the cleaner to perform an additional cleaning operation, and includes a housing to store dirt therein, an outlet through which the dirt stored in the housing is discharged, and a movable cover movable between a closing position to close the outlet and an opening position to open the outlet, a receiving unit for receiving the cleaning apparatus, a conversion unit for converting the movable cover of the cleaning apparatus from the closing position to the opening position, a suction unit for drawing in dirt from a cleaning surface along with air, and a dust-collector which is fluidly connected to the suction unit and the cleaning apparatus to separate dirt from air.

Abstract: In order to measure the degree of filling of a dust collector (5), where the dust (15, 16) collected in the dust collector may be of a very varied composition ranging from very fine dust (15) to rather large particles (16), a high pressure difference and a low pressure difference are measured by two differential pressure meters (11, 12), where the one differential pressure meter (12) measures the pressure difference between the compartment (4) of the dust collector, in which the dust collector (5) is arranged, and a measurement position at the connecting stub (6) of the vacuum cleaner, as is known, while the other differential pressure meter (11) measures between two measurement positions inside the connecting stub (6).

Abstract: A vacuum cleaner is provided. The vacuum cleaner may include a dust collection container that stores dust, a compression member that is provided in the dust collection container and which is capable of rotating in first and second directions, and a driver that rotates the compression member. The compression member rotates in a first space corresponding to a first angle range and at least a portion of the dust is stored in a second space corresponding to a second angle range.

Abstract: A surface cleaning apparatus comprises a recovery tank. The surface cleaning apparatus can further include a base, and the recovery tank can have side rails to facilitate alignment of the recovery tank with the base. The recovery tank can include a float assembly with a pivotable closure member. The recovery tank can have a lid with a handle and latch to secure the lid to the recovery tank. Further, the recovery tank can comprise a lid with a working air conduit mounted to the lid and removable from the recovery tank with the lid.

Abstract: A vacuum bag (10) attachment device and method. One embodiment provides a device for attaching a vacuum bag to a suction port of a vacuum cleaner (11), wherein the vacuum cleaner has a fixation projection (22) positioned adjacent the suction port (17). The attachment device comprises a holding plate (12) having a first aperture (15) configured and adapted to be received on the suction port of the vacuum. The holding plate also has a hinged portion (18) with a second aperture (21) positioned within the hinged portion. The hinged portion is moveable between a first position in which the hinged portion does not secure the holding plate to the vacuum and a second position in which the hinged portion secures the holding plate to the vacuum. The second aperture is configured and dimensioned to be received on the projection (22) adjacent the suction port of the vacuum cleaner when the hinged portion is in the second position.

Abstract: A vacuum cleaner attachment useful to collect dispersed packing particulates and the like comprises a thin-walled polymeric enclosure defined by a plurality of generally planar panels surrounding at their free edges a receiving opening through which the particulates are collected by the vacuum draw against a perforated screening structure. As the particulates accumulate in the enclosure the large pressure drop across the outer ranks thereof produces inward pressure forces across the panels, resulting in the inward flexures thereof to assist in the retention of the particulates in the enclosure as it is moved over a collection receptacle.

Abstract: The subject invention provides a vacuum unit and a waste container. The vacuum unit applies a vacuum to clean an area to collect debris and the waste container collects waste by a user separate from debris collected by the vacuum unit. The vacuum unit includes a battery for powering a motor of the vacuum unit. The vacuum unit also includes an exhaust port which exhausts air in an exhaust path. The battery is disposed in the exhaust path to provide for cooling of the battery.

Abstract: An industrial dust collector comprises a frame body, a suction device attached to the frame body, a suction device attached to the suction device. The frame body has a containing cavity for containing the suction device. A supporting device is disposed between the suction device and the frame body for the suction device being movably attached to the frame body, so that the suction device can move between an unfolding status and a containing status. In the unfolding status, the suction device is unfolded relative to the containing cavity; in the containing status, the suction device is contained in the containing cavity. Therefore, the industrial dust collector has the advantages of small packaging size, convenient transportation and low transportation cost.

Abstract: A multi-function board eraser structure includes a dust-collecting device, a flexible pipe, a wiping absorber opening and a mobile guiding track. The dust-collecting device is small in volume, has intense absorbing forces and is capable of moving about as well as being devised with a light-indicative power switch, an overload protective fuse base, an overheating protective indication lamp, and a dust-collecting chamber saturated pressure switch display. Above the dust-collecting chamber are a dust-collecting breach and a scraping plate for absorbing dust accumulated at the wiping absorber opening for restoring the wiping absorber opening to an optimal status for further usage. The wiping absorber opening has a wiping plane, which is an arched body for gathering chalk dust at a middle section of the main body during a wiping process and is made of a highly elastic material for facilitating dust collection. The wiping plane is covered by a velvet plane that is highly electrostatic and wear-resistant.

Abstract: A bagless vacuum cleaner system dustcup assembly and method for using said system with a vacuum cleaner apparatus to separate dirt from a mixture of dirt and air inducted into said vacuum cleaner apparatus. Said bagless vacuum cleaner system generally comprises a dustcup assembly, a handle assembly and a motor intake adaptor.

Abstract: A cyclonic surface cleaning apparatus incorporates a series of sequential physical filtration members to progressively remove smaller particulate matter whereby the physical filtration members collectively have a longer in use time prior to being clogged, thereby permitting a longer operating time prior to the cleaning or replacement of the physical filtration members.

Abstract: A dust collector comprises a tank having an intake opening; a head unit mounted on the tank; a motor provided on the head unit and having a rotor, a stator and an output shaft; a fan provided on the head unit and rotating under power from the motor, for sucking air or liquids into the tank from the intake opening; and a filter housed in the tank, that separates dust from the air or liquid sucked into the tank. The rotor has a coil disc having multiple roughly annular coils arranged in a circumferential direction centered on the output shaft in the direction of the axial line of the output shaft. The stator has a magnetic flux generation mechanism that generates magnetic flux that passes through the coil disc in the direction of the axial line of the output shaft.

Abstract: A mobile yard vacuum cart that incorporates a leaf blower and trash can into a vertical support assembly that allows an operator to collect leaves into the trash can for disposal simultaneously while moving the mobile yard vacuum cart across a lawn without lugging the leaf blower. The mobile yard vacuum cart has a vertical support assembly, a pickup assembly, a discharge assembly and a strap assembly. The coupling of the leaf blower with the pickup assembly allows the operator to simply push the mobile yard vacuum cart without having to simultaneously manipulate a blower intake tube across the lawn surface. If the leaf blower has a chopping impeller blade, the mobile yard vacuum cart advantageously directs the leaves into the impeller of the leaf blower for chopping. The mobile yard vacuum cart provides adaptors in a variety of configurations to couple the tubes supplied with the leaf blower.

Abstract: A dust remover according to the present disclosure forms an air flow in a space formed between a charge-coupled device and a shutter unit, and removes dust on a surface of the charge-coupled device, the dust remover comprising an air injector having a plurality of air injecting holes; an air discharger which is installed on a surface facing the air injector, and has at least one air discharging hole which is smaller than the air injecting hole; and an exhausting dust collecting filter which is installed in the air discharger, and collects dust in the air being discharged.

Abstract: A handheld vacuum cleaner having a housing with an electric motor, a fan driven by the motor, a debris emptying hole for removal of debris from a debris collecting compartment inside the vacuum cleaner, a lid pivotally hinged about a pivot axis and adapted to allow closing and opening of the debris emptying hole, a nozzle defining a nozzle opening in a forward end of the vacuum cleaner through which an air stream may be drawn for collecting debris, and at least two wheels, which are positioned adjacent the nozzle opening and are rotatable about a common rotation axis. The pivot axis for the lid and the rotation axis for the wheels are located on a common axis.

Abstract: Disclosed related to a vacuum cleaner comprising a cleaner body in which a dust collector mount part is formed; a dust collector attached and removed at the dust collector mount part, and having a dust storage part in the inside; at least one of the compressing member reducing the volume of the dust stored in the dust storage part as arranged in the dust storage part movably; a power transfer unit transferring the driving force to the compressing members from outside as connected with the compressing members; and a control unit deciding the amount of the dust stored in the dust storage unit.

Abstract: The present invention relates to a vacuum cleaner, in which circulates a flow of drawn-in air loaded with particles, between an inlet nozzle and an aperture communicating with a suction chamber. The vacuum cleaner includes a water-air separator intercalated between an upstream conduit and suction device, capable of orienting the gas phase into the suction chamber, and the particles into a tank. The invention relates to a heating body incorporated in the vacuum cleaner. The vacuum cleaner also includes a filament embedded in ceramic materials, and a spray chamber formed by a helical space between two bodies or casings nested into each other, at least one of the bodies or casings being a ceramic body incorporating, embedded, a metallic filament.

Abstract: The invention concerns a vacuum cleaner (100) comprising a lower body (200) and an upper body (400) enclosing in particular a motor fan unit and a waste separating device. The invention is characterized in that: the lower body (200) and the upper body (400) are made of expanded polypropylene, at least one so-called upper rigid part (190) is supported on the upper body (400), or is secured to the upper body, at least one so-called lower rigid part (152, 162) is supported on the lower body (200), or is secured to the lower body, at least one rigid linking element (150, 160, 194, 520) is mechanically linked to at least one upper part (190) and to one lower part (152, 162) passing through the upper body (400) and the lower body (200) so as to maintain by compression the upper (400) and lower (200) bodies.

Abstract: A vacuum bag includes a container portion having at least one opening. A threaded fitting is disposed in communication with the at least one opening, and the threaded fitting is configured for attachment to a vacuum nozzle of a vacuum cleaner.

Abstract: A vacuum cleaner is disclosed that includes a dust-separating apparatus, a shutter unit, and a dust receptacle. The dust-separating apparatus can be fixed to a cleaner body and includes a dust outlet. The shutter unit is formed on the dust-separating apparatus to selectively open and close the dust outlet. The dust receptacle is detachably attached to a lower portion of the dust-separating apparatus. The dust receptacle opens the shutter unit when attached to the dust-separating apparatus and closes the shutter unit when detached from the dust-separating apparatus.

Abstract: The invention concerns an upright vacuum cleaner comprising a cleaning head portion supporting an upright portion which includes a collector for vacuumed detritus, the cleaning head portion being provided with wheel means which allow the cleaner to be moved and directed over a floor surface by a user holding a handle provided at an upper region of the upright portion, wherein a lower region of the upright portion is structurally attached to the cleaning head by a tubular conduit in which air-entrained detritus can be conveyed from the cleaning head to the collector, and wherein the tubular conduit is provided with a swivelling connection in which a first tubular member associated with the upright portion engages with a second tubular member associated with the cleaning head portion, so that a male end of one of the tubular portions is seated co-axially in a female end of the other, and wherein the tubular portions are retained in engagement by an elongate flexible locking member which is accommodated in an an

Abstract: A latch assembly for a vacuum cleaner is disclosed. The latch assembly includes a housing and a handle pivotally mounted to the housing and movable between an operational position and an storage position. The latch assembly further includes an arcuate surface defined in the handle near a pivot axis of the handle and a notched engagement surface defined in the handle proximate to the arcuate surface. The latch assembly yet further includes a latch pivotally mounted to the housing and offset from an axis of rotation of the handle and movable between a locked position and release position. The arcuate surface of the handle slides along the latch when the latch is in the release position allowing the handle to move between the operational position and the storage position. The notched engagement surface of handle engages the latch when the latch is in the locked position thereby preventing rotation of the handle relative to the housing and placing the handle in the operational position.

Abstract: A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. The first end is provided with a fluid inlet and the second end is provided with a dirt outlet. The dirt outlet provides a lateral outlet to a dirt collection chamber in communication with the cyclone chamber via the dirt outlet. The dirt outlet is positioned from about 90 to about 330° around the cyclone casing in a flow direction from the fluid inlet.

Abstract: In a device that uses the tank from a conventional vacuum cleaner, the tank is under positive pressure. A cap fits over a tubular element inside the tank and closes the conventional air inlet. The cap has a peripheral wall that extends between a solid back and a front radial rim, and interior axial ribs. The lid is held by a latch that has an element that pivots with respect to the tank and the lid, and a clasp that has a bent arm. A tensioner pulls the bent arm. The tensioner has a threaded rod that extends from a handgrip though a hole in the pivoting element. A nut on the clasp receives a threaded end of the threaded rod, enabling the handgrip to be used to tighten the clasp. An outer wall of the latch is disposed outwardly of the threaded rod and the bent arm.

Abstract: A self-propelled mobile vacuum system comprising a vacuum source that provides suction for the removal of debris, a collection tank for storing debris collected by said vacuum source suction, and at least two rolling drive systems for maneuvering the vacuum system within a work space. A motor provides power to the vacuum source and the two rolling drive systems, and the system has an overall width within the range of 24 to 48 inches, an overall length within the range of 5 to 10 feet, and an overall height within the range of 60 to 84 inches.

Abstract: A vacuum cleaner having a main body and a dust collecting bin, the dust collecting bin is removably mounted in a mounting portion of the main body.

Abstract: A vacuum bag hold-down arrangement for a dust collection system maintains a negative pressure in the space between a dust collection drum and a plastic film liner or bag in the drum. A cyclonic separator at the station separates the dust from an air flow and deposits it into the liner in the drum. The hold-down arrangement employs a vacuum pump producing about 1 to 3 psig negative pressure. A vacuum conduit extends from the pump through a penetration in the drum and into the space between wall of the drum and the liner bag. A porous pad, e.g., open cell foam, is situated over the vacuum conduit and separates the bag liner from the vacuum conduit. This distributes the air flow into the vacuum conduit and creates a more uniform grip of the liner or bag to the drum.

Abstract: In a powered floor finishing machine or surface abrading machine, a housing encloses an abrading component. Dust is collected at the edge of the abrading component by an airflow drawn through the gap between the abrading component and the edge of the housing, through the housing to a suction port and on to a dust collection system. Supplemental air at relatively higher pressure is injected into the housing at a favorable position and angle as to the interior geometry and normal airflow pattern so as to inhibit dust collection within the housing and increase average airflow velocity from the gap to the suction port. Less dust is precipitated out of the airflow before it gets to the suction port, thus improving the efficiency and effectiveness of dust collection, and extending the intervals between which the interior of the housing need be cleaned.

Abstract: A robot cleaner comprises a main body having a suction port at a bottom surface thereof, a pair of wheel assemblies disposed at both sides of the main body, and configured to move the main body, a dust box mounted to contact the bottom surface of the main body, and configured to collect dust sucked through the suction port, a filter unit configured to filter air discharged from the dust box, a suction fan configured to form a suction pressure on a suction channel defined by the suction port, the dust box and the filter unit, and a battery disposed at a side of the dust box.

Abstract: A cyclonic portable vacuum cleaner/dust collector for workshop or other use has a conic body that is supported on a hand cart or dolly. A funnel shaped divider plate within the conic body divides it into a cyclonic chamber between the divider plate and the lower nose, and a filter chamber between the divider plate and a motor plate that closes the upper mouth of the conic body. The filter chamber contains a filter cartridge. A vacuum air pump is mounted on the motor plate, and is covered by a shroud or housing. Clean, filtered air is exhausted into the ambient. Process dust settled into a dust collection drum supported beneath the nose of the conic body. A pulse cleaning arrangement serves for periodic filter cleaning. The supporting cart can be wheeled or can use a wall bracket for wall mounting.