Abstract: In a device for removing toner or similar substance deposited on a recording sheet or similar sheet, projections are formed on a back-up member and located at portions on which the rear of a separating member slide. While a sheet is passed through a pressing portion in contact with the separating member, the projections raise the rear of the separating member toward the surface of the sheet carrying the toner. Hence, even solitary particles of the substance adjoining relatively thick and large masses of the substance can contact the front of the separating member. Hence, the solitary particles are prevented from remaining on the sheet.

Abstract: A method for cleaning the wheels of a car used in a semiconductor manufacturing plant uses a pair of endless belts that carry a dust trapping material on their outer surfaces. The car is located with a wheel supported by two rollers that each carry one of the belts. One of the rollers is turned and as the wheel rides in a gap between the two belts it turns with the first belt and transfers a turning motion to the other belt. As the wheel turns with the belts, dust on the wheel is transferred to the belts.

Abstract: In a method of and an apparatus for regenerating an image support from a used image-bearing support which bears thereon hydrophobic images formed of thermofusible or heat-softening ink, a plurality of image releasing members are used for removing the hydrophobic images from the used image-bearing support. Specifically, at least one of the image releasing members has a first portion which is able to adhere to the hydrophobic images and a second portion which is unable to adhere to the hydrophobic images, and the image releasing members are arranged in series in order of size of the first portion from small to large along a feeding direction of the used image support. Accordingly, the image releasing members are allowed to adhere to the hydrophobic images in order of size of the first portion from small to large so that the hydrophobic images are removed from the used image support effectively.

Abstract: A portable water recycler for cleaning and recycling water used in a produce washing system or another similar system. The portable water recycler is most particularly advantageous in the recycling of water used in a potato washing system. The portable water recycler includes a conveyor filter which removes and conveys debris generally laterally while allowing water to pass generally vertically through a funnel and into a reclaiming tank. The reclaiming tank has a sloped floor and a bottom outlet. Dirty water is discharged from the bottom outlet and pumped through at least one centrifugal separator for further separation of particulate material from the water.

Abstract: A sheet cleaning apparatus having sets of cleaning rollers, wherein the rollers are integrated into a removable cartridge structure. Couplers are provided at roller shaft ends to connect to the roller drive. The cartridge is received in a slide carriage, permitting the cartridge to be readily removed from the apparatus by sliding the carriage out, and lifting the cartridge out from the slide carriage. With this arrangement, the down time for the sheet cleaning apparatus is minimized, since the sheet cleaning apparatus can be provided with two cartridges, and the cartridge needing maintenance can simply be quickly removed and replaced with a fresh cartridge. The production line can quickly be put back into operation, and the removed cartridge can be serviced off line for subsequent use.

Abstract: System (10) for automatically conveying photosensitive cargo containers (15) through a storage compartment (14) of a vehicle, preferably a trailer (12) and selective environmentally controlled enclosures (32,40,42) comprises a conveyor device (18) positioned in the storage compartment (14) that cooperates with interconnected conveying devices (34) in the enclosures (32,40,42). Devices are provided for aligning and positioning the rear exit end (16) of vehicle (12) snugly against the entrance port (30) of a proximally positioned enclosure (32). A system control device (100) connecting the conveying device (18) and conveying devices (34) enables the cargo containers (15) to be automatically conveyed from the vehicle (12), through the entrance port (30) and into the proximal enclosure (32).

Abstract: In a device for removing toner or similar substance deposited on a recording sheet or similar sheet, projections are formed on a back-up member and located at portions on which the rear of a separating member slide. While a sheet is passed through a pressing portion in contact with the separating member, the projections raise the rear of the separating member toward the surface of the sheet carrying the toner. Hence, even solitary particles of the substance adjoining relatively thick and large masses of the substance can contact the front of the separating member. Hence, the solitary particles are prevented from remaining on the sheet.

Abstract: A system for cleaning a substrate comprising bringing a contact cleaning web into moving synchronous contact with the surface of a member to be cleaned to clean the surface.

Abstract: A device for removing cobwebs comprising a handle (6) housing electrical storage cells (16), and a motor (14); said motor (14) being drivably connected to a length of rod (8) which when made to come in contact with cobwebs while being spun by the energized motor (14) causes cobwebs (30) to stick to and get tightly wound around said rod resulting in the effective removal and disposal of the cobwebs.

Abstract: An apparatus for cleaning a buffing pad mounted on a rotary powered buffing machine is adapted to be adjustably mounted by a plurality of support legs within an open container containing a liquid cleaning solution. The buffing pad is placed in an upper enclosure that can be adjusted in size to correspond to buffing pads of varying thickness. The bottom of the enclosure includes a water wheel mounted for engagement by the buffing pad and rotatable between the enclosure and a point below the level of cleaning solution in the container, such that powered operation of the buffing machine and rotation of the pad drives the water wheel to deliver cleaning solution to the pad enclosure to clean accumulated wax, dirt and other materials from the pad. The device makes use of a series of rotatable cleaning wheels of the type used in prior devices which are also driven by the buffing pad and assist in loosening and removing accumulated materials from the buffing pad.

Abstract: A cleaner for cleaning the compressible media portion of a fluid transfer member including an apertured liquid holding receptacle, the aperture of which is provided with a flexible rim adapted to compress the media portion therefrom when passed therethrough.

Abstract: An apparatus for recycling a recording medium having an image forming substance deposited on both sides of the recording medium. A first image removing unit removes the image forming substance from a first side of the recording medium and a second image removing unit removes the image forming substance from a second side of the recording medium. A driving portion feeds the recording medium sequentially through the first image removing unit and then through the second image removing unit. Each image removing unit includes an image separating material which is constructed of a substance to which the image forming substance tends to adhere to and a backpressing material, which is formed opposite to the image separating material, and which presses the recording medium against the image forming substance. A surface of the backpressing material is formed of a material to which the image forming substance tends not to adhere.

Abstract: System (10) for automatically conveying photosensitive cargo containers (15) through a storage compartment (14) of a vehicle, preferably a trailer (12) and selective environmentally controlled enclosures (32,40,42) comprises a conveyor device (18) positioned in the storage compartment (14) that cooperates with interconnected conveying device (34) in the enclosures (32,40,42). Devices are provided for aligning and positioning the rear exit end (16) of vehicle (12) snugly against the entrance port (30) of a proximally positioned enclosure (32). A system control device (100) connecting the conveying means (18) and conveying device (34) enables the cargo containers (15) to be automatically conveyed from the vehicle (12), through the entrance port (30) and into the proximal enclosure (32).

Abstract: An apparatus and associated method for removing microscopic particle contaminants from an object such as a photomask or a semiconductor wafer. The apparatus utilizes an inspection device to identify the position of any particle contaminants on the target object. Once the positions of the various particle contaminants has been identified, a probe is dispatched to the position of one of the particle contaminants. The probe removes the particle contaminant from the target object and moves to a cleaning compartment, wherein the particle contaminant is removed from the probe. The probe is then moved to the next subsequent particle contaminant until all the contaminants are removed from the target object. By removing particle contaminants one-by-one from the target object, the manufacturing yield of zero defect products is greatly increased.

Abstract: A method of removing plastic ink film from a sheet of copy paper by preheating the paper sheet in a preheating chamber to loosen the plastic ink film from the paper sheet followed by contacting the heated paper sheet with an adhesive surface by pressing the adhesive surface against the heated paper sheet, fusing the plastic ink film to the adhesive surface and then peeling the heated paper sheet from the adhesive surface so that the plastic ink film is removed from the paper sheet. The fused plastic ink film is then removed from the adhesive surface by cleaning and the adhesive roller is made ready for another paper sheet. The paper sheet is then rehumidified, calenderized and treated with white toner to restore whiteness, followed by optical inspection of the paper sheet for the presence of holes and to determine if the plastic ink film has been removed from the paper sheet. Depending on the optical inspection, the paper sheet is sorted into a rejected or accepted output bin.

Abstract: In a device for recycling a recording medium by removing a film-like image forming substance from the medium, a separating member contacts one side of the medium carrying the substance. The separating member is durable because its surface contacting the medium is provided with a measure against deterioration. Anticorrosion means reduces the deterioration rate of the separating member.

Abstract: An aluminum wheel having a side on which an annular groove is formed is stably led to a polishing and cleaning station in a compact shot blasting apparatus in which the aluminum wheel is uniformly polished and cleaned, and in which an inlet guide way and an outlet guide way on which the aluminum wheel rolls are provided upstream and downstream of a pair of eccentric rollers, a stopper is provided above the inlet guide way while a kick-out bracket which can ascend and descend passing through a gap between the eccentric rollers is provided so that the aluminum wheel is led onto the eccentric rollers with its rolling speed being controlled by the stopper and the kick-out bracket. Further, the shot blasting zone on the aluminum wheel is extended horizontally in a band-like shape.

Abstract: A hand operated paint roller cleaning apparatus (10) which extracts residual reusable paint (33). Mechanically advanced by a one-way drive (25) the roller brush (32) is conveyed longitudinally through the aperture (26). The aperture (26) supports a circular wiper (15) which has a interference fit when contacting with the nap of the roller (32). The trigger handle (12) when compressed increments the roller (32) through the aperture (26) expelling the paint (33) and wringing the roller nap (32).

Abstract: A medal cleaning apparatus for mixing and jumbling medals and cleaning material, cleaning the medals, separating the medals and the cleaning material and then expelling the medals comprises a transporting pipe, the lower end of the transporting pipe having an inlet for taking-in the medals and the cleaning material and the upper end of the transporting pipe becoming a medal expulsion outlet, a spiral member, installed within the transporting pipe, for mixing, jumbling and transporting the medals and the cleaning material, a driving mechanism for rotating the spiral member, a filter, set up around and extending from one side of the upper end of the transporting pipe, and a return pipe for guiding the cleaning material separated at the filter to the lower end of the transporting pipe, with the filter being arranged so as to be inclined downwards in the direction of progress of the medals and the plane of the medal expulsion outlet at the upper end of the transporting pipe being inclined downwards in the directi

Abstract: A rotary applicator cleaning device in which a roller is placed within a housing and rotated within that housing as it is subjected to a cleaning solution and a resilient scrubbing.

Abstract: A cleaning apparatus has a roller unit coated with an adhesive layer formed from acrylic emulsion for eliminating contaminants from a surface of a semiconductor wafer and a washing unit for washing away a piece of adhesive substance left on the surface of the semiconductor wafer, and the adhesive layer formed from acrylic emulsion is so large in tackiness and hydrophilic that the cleaning apparatus removes not only large but also micro particles without residue of the adhesive substance on the surface of the semiconductor wafer.

Abstract: An apparatus for cleaning a buffing pad mounted on a rotary powered buffing machine is adapted to be mounted on the upper edge of an open container containing a liquid cleaning solution. The buffing pad is placed in an upper enclosure the bottom of which includes a water wheel mounted for engagement by the buffing pad and rotatable between the enclosure and a point below the level of cleaning solution in the container, such that powered operation of the buffing machine and rotation of the pad drives the water wheel to deliver cleaning solution to the pad enclosure to clean accumulated wax, dirt and other materials from the pad. The device makes use of a series of rotatable cleaning wheels of the type used in prior devices which are also driven by the buffing pad and assist in loosening and removing accumulated materials from the buffing pad.

Abstract: A web cleaning apparatus and method for cleaning the surface of a web (22), for example a photographic film. The apparatus has a rotatable particle transfer roller (10) for removing particulate contamination from the web and a rotatable renewal roller (30) having a cleaning surface (36) for contacting and cleaning the particle transfer roller. Wiping contact is established between the particle transfer roller and the renewal roller to effectuate cleaning of the transfer roller. An absorbent cleaning member (46) is positioned in a cleaning fluid reservoir (32) for wetting and cleaning the cleaning surface of the renewal roller.

Abstract: The present invention relates to a device for cleaning and/or treating elongated closed ducts or channels, particularly ventilation ducts. The device includes an automotive vehicle and mounted thereon a rotary brush useful for cleaning and/or surface treating. The rotary brush is mounted for rotation on a shaft that extends generally at right angles to the longitudinal axis of the duct. The invention also contemplates mounting a television camera onto the automotive vehicle for monitoring results of the cleaning and/or treating operation.

Abstract: A method for forming images including the steps of: developing an electrostatic latent image formed on a latent image carrying member with a liquid developer including a carrier liquid; and bringing a toner image thus formed into contact with an oil absorbent selected from the group consisting of a network-forming oil-absorbent material and a gel-swelling oil-absorbent material, to remove the carrier liquid.

Abstract: A carpet wheel is provided for a rotary cleaning apparatus of the type having an electric motor in a housing, a brush member attached to a drive shaft of the motor, a holding tank for a liquid cleaning fluid and a handle extending at an angle upwardly from the holding tank. The carpet wheel comprises a circular shaped base member. Elements are on the base member in a pattern, for forming a plurality of radially extending grooves. The groove forming elements can be releasably positioned against the underside of the brush member, to be rotated thereabout. A plurality of balls are also provided. A structure is for rotatively carrying the balls in the base member, in spaced apart radially extending locations under every other groove, so that the balls will contact and roll upon a carpet.

Abstract: A cleaner for cleaning debris from the bristles of a bristle bed which provides the work material support surface for a sheet material cutting machine performs its cleaning operation while the bristle bed or the bristle units making up the bristle bed remain in place on the cutting machine. A plurality of blades which may be either rotary or non-rotary are fixed to and spaced relative to one another along a given line. During a cleaning operation the blades enter the bristle bed and are moved in a direction perpendicular to the given line and parallel to the support surface to dislodge debris from the bristles. A vacuum device may be included in the cleaner to collect the dislodged debris and the cleaner may also include a vibrator for vibrating either the blades or the bed in the vicinity of the blades to assist in freeing the debris from the bristles.

Abstract: Apparatus for cleaning foreign particles from the surface of sheets of material, such as printed circuit boards during fabrication processing. Two pairs of sheet cleaning rollers are located along the sheet path, and the sheet is passed through the nips between the pairs of rollers. The rollers have a surface tack sufficient to transfer the foreign particles from the surfaces of the sheet to the cleaning roller surfaces. Upper and lower roller cleaning rolls having surfaces of even greater surface tack are arranged in tangential contact with respective ones of the sheet cleaning rollers. The surfaces of the roller cleaning rolls have even greater surface tack, sufficient to transfer the foreign particles from the sheet cleaning rollers to the cleaning roll surfaces. An adjustable preload force is applied to each roller cleaning roll to urge each roll against the sheet cleaning roller surfaces.

Abstract: An apparatus for applying ultrasonic energy in precision cleaning includes a pressure vessel having a plurality of sonic plates, with or without a rotary device located inside the vessel. The plates may be arranged centrally within the vessel to propagate sonic waves outward, or the plates may be located on an interior wall in the pressure vessel, directed inward. Each plate includes a plurality of sonic transducers, spaced along the longitudinal axis of the pressure vessel. The rotary device may include a plurality of arms carrying removable brush holders or a rotating parts basket. In either case, the device is driven by a motor mounted in a top cover of the pressure vessel. A liquid cleaning fluid, preferably carbon dioxide, is charged in the pressure vessel to submerge the sonic plates and workpieces secured in the pressure vessel. The transducers are then energized and the rotary device engaged to apply both sonic and mechanical agitation to the workpieces for enhanced removal of particulates.

Abstract: A movable oil and oil sludge removal apparatus which can be inserted into the manhole of a storage and process tank, the apparatus including a platform, a pump connected to the platform, two track assemblies connected to the platform, tracks connected to each track assembly to drive the track assemblies, a motor for driving the track assemblies, and an auger apparatus connected to the track assemblies for cutting the sludge and channeling the sludge to the pump intake.

Abstract: Self-propelled steerable apparatus for removing material, such as sludge, from the bottom surface of a liquid storage tank for disposition elsewhere comprises a support platform and a reversely rotatable motor-driven auger mounted below the support platform and cooperating therewith to define a space for receiving sludge when the rotatable auger is engaged with the surface. A motor-driven pump mounted on the support platform is operable to receive sludge from the auger and deliver it through a discharge hose to a remote location. Rotation of the auger delivers the sludge to the pump and propels the apparatus across the surface. A remotely controllable steering mechanism on the support platform has a tail wheel which engages the surface and steers the apparatus along a desired path. A winch-controlled back-haul cable is connected to the apparatus to periodically stop forward movement of the apparatus while the auger is still rotating so that the sludge can be more efficiently removed.

Abstract: A movable oil and oil sludge removal apparatus which can be inserted into the manhole of a storage and process tank, the apparatus including a platform, a pump connected to the platform, two track assemblies connected to the platform, tracks connected to each track assembly to drive the track assemblies, a motor for driving the track assemblies, and an auger apparatus connected to the track assemblies for cutting the sludge and channeling the sludge to the pump intake.

Abstract: A contact cleaner roll cleaning system includes a frame supporting the system relative to a moving web, a contact cleaner roll turret on the frame, and a roll cleaner on the frame. The turret supports two or more rotatable contact cleaner rolls, an active roll in rolling contact with the web, and an idle roll out of contact with the web for cleaning. The idle roll is kept rotating while it is idle and being cleaned. The turret is rotatable to sequentially put the cleaner rolls into and out of contact with the web. The roll cleaner includes an absorbent cleaning material mounted adjacent to the idle roll for placement against it and movement lengthwise along it to wipe it clean. Spindles advance the cleaning material between wipings of the idle roll, and a liquid delivery system keeps the cleaning material wet.

Abstract: Apparatus for wringing mops, sheets, strips or other wet commodities has a housing which can be placed on top of a bucket and contains a first roller and a second roller movable radially toward and away from the first roller. The mechanism for moving the second roller toward the first roller comprises a pivotable lever which can turn two sector-shaped collecting elements each connected to the trailing end of a discrete flexible elastic pusher the front end of which engages a bearing for the second roller. The pushers are confined to movement along selected paths while they push the second roller toward the first roller so that the rollers cooperate to expel moisture from a commodity between them at a rate which is determined by the selected position of the lever. The first roller can be driven to move a commodity between the rollers upwardly, and springs are provided to pull the second roller away from the first roller.

Abstract: A vehicle for the removal of sludge from the interior bottom of liquid storage tanks is disclosed. The vehicle includes a gathering header at the lead edge of the vehicle and a gathering arm extendable out over the header. The gathering arm reaches out and gathers sludge between the header and arm urging the sludge toward the header of the vehicle and the vehicle towards the sludge. The gathering header includes a floor mounted brass scraper and a cross feeding auger. The cross feeding auger in combination with the header body receives the material forced into the header by the gathering arm and directs it to a central portion of the header. Underlying the central portion of the header there is positioned a super charging auger series feeding a positive displacement pump.

Abstract: A bottle and can picking apparatus includes a portable carrier frame, a rotatable member mounted on the carrier frame, a plurality of flexible loops attached to the rotatable member and extending radially therefrom for picking up the bottles, cans and other litter, a drive motor for driving the rotation of the rotatable member, and a waste receptacle for receiving and holding the litter picked up by the loops. As the carrier frame is moved over the ground and the rotatable member is rotated, the flexible loops come in sweeping contact with the ground, dislodging the litter and lifting it upwardly and rearwardly into the waste receptacle.

Abstract: A movable oil and oil sludge removing apparatus which can be inserted into the manhole of a crude oil storage, the apparatus including a platform, a pump connected to the platform, two drive assemblies connected to the platform, tracks connected to each drive assembly to drive the drive assemblies, a motor for driving the drive assemblies, and an auger apparatus connected to the platform for cutting the sludge and channeling the sludge to the pump intake.

Abstract: A self-propelled, sludge cleaning machine including a sludge auger, a sludge pump, crawler tracks and hydraulic motors for propulsion, steering and pumping is assembled at a job-site and inserted into the storage tank through a top access opening. A tether line is connected between the cleaning machine and a control assembly temporarily installed near the access opening to sense tether line length and angle. A sludge discharge hose, hydraulic lines and an electric wire for an ultrasonic sludge-depth sensor on the machine extend outwardly through the access opening. The hose discharges sludge through a filter and into a sludge-collection tank on a first truck. The hydraulic lines are connected to a control valve assembly located on a second truck and controlled by a preprogrammed job-site computer located in the second truck. Length, angle and sludge-depth data from the sensors are fed to the job-site computer which provides a visual display showing cleaning machine position and sludge-depth.

Abstract: An apparatus including a pneumatic gun member, including a trigger to selectively direct pressurized air into contact with teeth members mounted circumferentially about a support disk. The teeth members, upon rotation, are directed against a cleaning pad to effect dislodgement and pneumatic removal of debris such as polishing compound and the like formed about a surface of the pad.

Abstract: The apparatus for vibratory cleaning the surface of an article from foreign matter, comprising at least one exciter (1) of mechanical pulses, including an electromagnetic inductor (2) with a plate (3), a frame (7) and at least one striking surface to be cleaned in an area or areas of the most probable location of the foreign matter, fixedly mounted on the frame (7). Each electromagnetic inductor (2) with the plate (3) closely adjoining this inductor (2) is fixedly mounted on the frame (7).

Abstract: A method and apparatus for cleaning buffing pads includes a hollow cleaning enclosure for receiving the pad while still attached to the buffing machine and permitting rotation of the pad within the enclosure. Agitating members are provided to contact the buffing pad while cleaning solutions are injected into the enclosure and against the buffing pad face while rotating. A pump drive wheel driven by the rotating buffing pad provides power to drive a pump contained within a reservoir of cleaning fluid to pump the cleaning fluid to the enclosure and pad.

Abstract: A sheet surface cleaing apparatus for cleaning the surface of a sheet on which painting or printing is to be conducted. The apparatus has a rotatable dust removing roll having a sticky surface capable of making rolling contact with the sheet surface to be cleaned. The apparatus also has a roll cleaning device mounted for movement parallel with the axis of rotation of the dust removing roll and capable of cleaning the surface of the dust removing roll. The dust removing roll is mounted for swinging movement between a position where it engages the roll cleaning device and a position where it engages the sheet surface. The surface of the roll cleaning device contactable with the dust removing roll is formed of a flexible porous cleaning pad which is mounted so as to be delivered in a direction perpendicular to the axis of rotation of the dust removing roll.

Abstract: A washing machine wherein liquid detergent is applied to shots (A) having relatively low hardness, which are then impinged against an object to be washed (B) by the use of a centrifugal blaster (8; 105), and thereafter the shots are returned to the blaster (8; 105), which machine comprises a recovery device (7, 10, 13, 15, 16, 19; 102, 107, 112, 112a), a detergent supply (17, 117), a safety shutter for preventing improper shot (119), a rubber plate for isolating vibration and sound (129), a sweeper for discharging shots (5; 111), and a rotary body to hold objects to be washed for shifting a shot zone (3; 103) etc. This washing machine applies to objects which are very dirty and require washing as a whole, such as an iron plate for roasting meat and tableware, a shopping bucket, a portable bottle case, a hook for hanging painted matter etc.

Abstract: A power apparatus for cleaning pine needles and other debris from overhead rain gutters while operated by an individual who is standing on the ground. A disk with protruding plastic apikes is attached to a gear assembly and electric motor. The disk rotates and throws debris from the gutter. A guard prevents said thrown debris from landing on the roof. The electric motor and gear assembly are located inside a housing which is at one end of a crossarm. A guide, fitting underneath said housing, can be adjusted to provide the proper amount of contact between the disk and debris laying in the bottom interior of the gutter. At the opposite end of said crossarm to the housing is a dislodge blade used to shift debris which may be unreachable by said disk especially debris located directly beneath gutter hangers. The dislodge blade is used to push this debris to a more accessible area of the gutter where the, disk is then used.

Abstract: An improved cleaning apparatus for use in cleaning the floor which comprises a first belt as a broom, a second as a mop and a trash containing corner whereby as the cleaning apparatus is pushed the wheels, the conveyor belt and wiping belt are driven so as to perform the functions of sweeping, wiping, and effectively protecting the trash from dropping therefrom.

Abstract: A method and apparatus, comprising a tool having a clam shell design, for sealing the interface volume between the internal wall of a reactor pressure vessel and submerged piping that penetrates the wall, and for cleaning the interface volume using a series of hydraulic and pneumatic operations. The tool is operable from a remote suface location, using a robotic arm for fine positioning, to clamp around the penetrating pipe. Hydraulic nozzles compressed air and mechanical brushes on the tool may be used to dislodge sediment in the interface volume.

Abstract: A motor operated, hand held apparatus for dislodging and removing of accumulated earwax within the canal of a hearing aid. This apparatus utilizes a narrow elongated tool which has a spiral exterior surface which is to be inserted within the canal of the hearing aid and operated at high speed to remove and move the earwax exteriorly of the canal. Associated with this tool is a cover which is to be movable to different positions to limit the amount of extension of the tool to within the canal to thereby eliminate any potential damage to the electronic mechanism of the hearing aid.

Abstract: A foam generator constituting or forming part of a carpet-cleaning apparatus has a foam body and a pressing element which alternately compresses and permits relaxation of the foam body to generate the foam with a cleaning liquid supplied to the foam body from the interior of the device. The foam is driven through apertures into the carpet therebelow.

Abstract: A ditch cleaning machine is for a longitudinally extending ditch having in a vertical trapezoidal transverse cross-section a greater width at the top than at the bottom and having slanting side walls. The machine has a steerable main frame ground-supported and engine-driven to advance along the ditch. The two-wheel main frame is laterally stabilized by adjustable outrigger wheels. A pair of cleaning rotors is pivoted to the main frame and to the forward end of a longitudinal elevator trough so as to engage the ditch side walls. The elevator trough rests on a transverse roller on the main frame, and the trough and the cleaning rotors are jackknifed about a transverse axis by a hydraulic jack connected to the elevator trough and to the main frame. Conveyor flights move debris from the cleaning rotors at the ditch bottom along the elevator trough for discharge onto a transverse conveyor extendable to and discharging from either side of the main frame.

Abstract: A cleaner of remote-control type is disclosed, which comprises a cleaner body A which includes a movement means having front wheels 2 and rear wheels 3, a dust collecting means 4 comprising an adhesive-backed roller provided at the front lower portion of the cleaner body and a receiver 7, and a transmitter B which includes a power means 8 such as a battery, a power switch 9, a movement controller 10 for controlling forward, stop and backward movements and a direction controller 11 for controlling left-turn, straight drive and right-turn.