Abstract: A washing machine includes a casing, a tub, a drum, a pump, a gasket that is arranged between a case opening and a tub opening and that includes first nozzles and second nozzles, and a water pipe assembly that includes: first nozzle ports affixed to the first nozzles, second nozzle ports affixed to the second nozzles, a first conduit, and a second conduit. The gasket further includes port insertion pipes into which the first and second nozzle ports are inserted. Each of the first and second nozzle ports includes at least one press-fit protrusion that is formed on an outer circumferential surface of the nozzle supply port and that is configured to, in a state in which the nozzle supply port is inserted into a corresponding port insertion pipe, maintain contact with an inner circumferential surface of the port insertion pipe.

Abstract: A reactor for coating particles includes a stationary vacuum chamber having a lower portion that forms a half-cylinder and an upper portion to hold a bed of particles to be coated, a vacuum port in the upper portion of the chamber, a paddle assembly, a motor to rotate a drive shaft of the paddle assembly, a chemical delivery system to deliver a first fluid, and a first gas injection assembly to receive the first fluid from the chemical delivery system and having apertures configured to inject a first reactant or precursor gas into the lower portion of the chamber and such that the first reactant or precursor gas flows substantially tangent to a curved inner surface of the half-cylinder.

Abstract: A system and a method for treating a textile material with ozone gas. The system includes: an ozone gas supply system, a hollow chamber fillable with ozone provided by said gas supply system, a textile-feeding port connected to said chamber and comprising a first liquid fillable tank, a textile-discharging port connected to said chamber and comprising a second liquid fillable tank, guide rollers, driving rollers, at least one tension compensator located inside the hollow chamber. The system is adapted for implementing the method, the latter including: using the system and providing liquid to said first and second tanks, providing ozone gas to said hollow chamber, driving the textile material to pass tensed through the system while controlling its tension using the tension compensators. The use of the tension compensators prevents the formation of ozone induced defects on the textile material.

Abstract: A washing machine includes a casing, a tub, a drum, a pump, a gasket that is arranged between a case opening and a tub opening and that includes first nozzles and second nozzles, and a water pipe assembly that includes: first nozzle ports affixed to the first nozzles, second nozzle ports affixed to the second nozzles, a first conduit, and a second conduit. The gasket further includes port insertion pipes into which the first and second nozzle ports are inserted. Each of the first and second nozzle ports includes at least one press-fit protrusion that is formed on an outer circumferential surface of the nozzle supply port and that is configured to, in a state in which the nozzle supply port is inserted into a corresponding port insertion pipe, maintain contact with an inner circumferential surface of the port insertion pipe.

Abstract: A door gasket for a washing machine appliance includes a front ring engaging a front panel of the cabinet and extending around an opening defined by the front panel. A web extends from the front ring toward the wash tub and includes a flexing region (e.g., an S-fold) at least partially defining a trough. A back ring engages the wash tub and defines a plurality of venting apertures that provide fluid communication between the trough and the wash tub.

Abstract: Washing machine (1) for the washing of laundry such as clothes and textiles, which washing machine comprises a housing, open frame (1a), wherein the housing (1a) comprises: an inlet (4), for supplying washing water, an outlet (5), for disposal of washing water, a pump (6), for pumping the washing water and air, that the housing (1a) comprises at least one, preferably a plurality of washing drawers (2), each washing drawer (2) having a pair of conduits (4a, 5a) for fluid tight connection of a respective flexible washing compartment (10) for washing laundry and arranged in the washing drawer (2)), wherein each drawer (2) of the housing (1a) is arranged to lead water from the inlet (4) of the housing (1a) via conduit (4a) to the respective washing compartment (10) arranged therein and, by means of the pump (6) and conduit (5a), to pump air and water out from the respective flexible washing compartment (10) in order to create a pressure difference inside the washing compartment (10) with respect to the surroundin

Abstract: A liner for use with a basin to contain a liquid features two bodies of flexible plastic which are joined at adjacent faces of the distinct plastic bodies so as to form an interface of the plastic bodies. The liner includes an air conduit adapted for guiding pressurized air substantially within the thickness of the bag from an air discharge apparatus, which generates the pressurized air, to the interior of the liner. A length of the air conduit is formed at the interface of the plastic bodies such that a circumferential wall of the length of the air conduit is defined in part by an inner face of each plastic body. The plastic body of the liner that is arranged to contact an inside face of the basin is substantially imperforate so as to isolate the liner interior, where the liquid is received, from the basin.

Abstract: A cleaning tool set includes a rod; a mop head attached to the rod; a wiper attached to the mop head; and a bucket for receiving the mop; the rod includes an inner rod, an outer rod sleeved at least partially over the inner rod, and a driving mechanism for converting a telescopic motion between the inner rod and an outer rod into a rotating motion of the rod; the bucket includes at least one container, a rotatable dewatering frame with a central shaft. While the mop head is rotating with the rod to be dewatered, the mop head is put in the dewatering frame, and the water pumping device is driven by the drive mechanism to drain water out of the container which has the dewatering frame disposed therein.

Abstract: A bubble generating apparatus may include a driving shaft that rotates a drum, a rotatable fan on the driving shaft to generate an air flow as the fan rotates, a housing having a receiving space including or enclosing the rotatable fan, and an air tube connecting a stationary tub in the drum and the housing, configured to guide air from the housing to the drum.

Abstract: The present invention is related to methods for dyeing a traveling cellulosic substrate. The methods include steps of cationizing a cellulosic substrate followed by applying foam including one or more dyes to the cationized cellulosic substrate.

Abstract: An ozone laundry system and its method of use with continuous batch or tunnel washers is provided, wherein ozone can be injected into a plurality of different chambers along the continuous batch or tunnel washer and wherein the interfacing of a plurality of system controls occurs on a centralized HMI controller along with DOM and ORP monitoring. Vacuum sensors over vacuum switches are used to compensate for a slightly positive pressure at the ozone outlet, due to a long tube run with a weak vacuum.

Abstract: Disclosed herein is a washing machine that performs washing using bubbles. The washing machine may include an air bubble unit to generate air bubbles in detergent water using external air naturally introduced thereinto by pressure difference caused when the detergent water passes therethrough, a water tub having an introduction port to allow the detergent water containing the air bubbles to be introduced thereinto, and a washing tub rotatably provided in the water tub, the washing tub having a plurality of through-holes having a size less than the introduction port such that the air bubbles rise to a surface of the detergent water contained in the water tub.

Abstract: The ultrasonic ozone-generating unit in accordance with the present invention has an ozone-generating device, an independent seat, a sink device, an utensil-holding device and a vegetable basket. The utensil-holding device and the vegetable basket are mounted in a receiving space of the independent seat or in a sink of the sink device. An ozone gas generated by the ozone-generating device with a close-type air-pumping device capable of producing powerful ultrasonic carrier-airflow is guided into the receiving space or the sink and dissolved in water to sterilize deodorize and bleach an object to be cleansed.

Abstract: Disclosed is a washing machine having a bubble generator to wash laundry using bubbles. The washing machine includes a tub to contain washing water; and a bubble generator generating bubbles and supplying the bubbles to the tub, the bubble generator including a bubble generation pump allowing the washing water to flow therethrough and an ejector unit formed at one side thereof to mix air with the washing water. The washing machine minimizes a reduction of the speed of the washing water due to a passage resistance, and thus increases an amount of generated bubbles.

Abstract: A washing machine that circulates wash water and, at the same time, generates bubbles in the wash water. The washing machine includes a machine body, a tub disposed in the machine body. a tub cover provided above the tub, a pump mounted below the tub, and a circulation unit, having one end coupled to the pump and the other end coupled to the tub cover, to circulate wash water from the pump to the tub. The circulation unit includes a first channel, a second channel communicating with the first channel, the second channel having a smaller sectional area than the first channel, and an air inlet port provided in the second channel to allow air to be introduced into the circulation unit therethrough.

Abstract: Disclosed herein is a washing machine that performs washing using bubbles. The washing machine may include an air bubble unit to generate air bubbles in detergent water using external air naturally introduced thereinto by pressure difference caused when the detergent water passes therethrough, a water tub having an introduction port to allow the detergent water containing the air bubbles to be introduced thereinto, and a washing tub rotatably provided in the water tub, the washing tub having a plurality of through-holes having a size less than the introduction port such that the air bubbles rise to a surface of the detergent water contained in the water tub.

Abstract: A washing machine having high pressure angled air jets that introduce air into the wash water in a stationary pressurized tub. A circular swirl flow-pattern and air pressure within the warm wash water agitates and cleans the clothes without the need for a mechanically rotated drum or detergent. Sediment from the laundry is removed from the water by drains both at the top and the bottom of the tub. At the end of the wash cycle, the high pressure air is used to drain and dehydrate the clean clothes.

Abstract: A system for controlling a supply of ozone to a washing machine during operation thereof. The system comprising a washing machine having an internal drum for containing laundry and a quantity of a water. An ozone generator is connected to the washing machine and the ozone generator produces and supplies the produced ozone to the washing machine for ozonating the water. At least one sensor is provided for sensing a quantity of ozone exhausting from the washing machine during operation thereof, and the at least sensor being coupled to the ozone generator for interrupting production of ozone when a quantity of ozone exhausting from the washing machine exceeds a safe level.

Abstract: Disclosed is a washing machine having an improved circulation apparatus for pumping water in a lower side of the tub and discharging the pumped water from an upper side of the tub. The circulation apparatus includes a circulation motor, a circulation hose and an injection unit. The circulation motor communicates with a lower side of a tub of a washing machine to pump water in the tub. The circulation hose has one end that is connected with the circulation motor, and guides the pumped water. The injection unit includes a nozzle. that has a facing surface facing an inside of a drum and left and right surfaces of the facing surface, the facing surface and the left and right surfaces being completely opened. The nozzle disperses the water into the inside of the drum.

Abstract: A washing machine having high pressure angled air jets that introduce air into the wash water in a stationary pressurized tub. A circular swirl flow-pattern and air pressure within the warm wash water agitates and cleans the clothes without the need for a mechanically rotated drum or detergent. Sediment from the laundry is removed from the water by drains both at the top and the bottom of the tub. At the end of the wash cycle, the high pressure air is used to drain and dehydrate the clean clothes.

Abstract: Disclosed is an improved washing machine equipped with means for generating microbubbles of air in the detergent-containing water circulated from and to the stationary outer tub of the washing machine.

Abstract: Disclosed is an improved washing machine equipped with means for generating microbubbles of air in the detergent-containing water circulated from and to the stationary outer tub of the washing machine.

Abstract: There is provided an apparatus for treating garments and fabrics in a dry or wetted state or in an aqueous liquid. The apparatus has an apertured rotating barrel which hold the garments or fabric. A microprocess in association with a plurality of valves selectively admits oxidizing gas, or, steam and liquid into the barrel to desize and/or discolor the garments or fabrics.

Abstract: A pressurized pretreatment process for removal of stains on fabrics prior to washing employing means for delivering a stain pretreating solution under the pressure of water or air or a combination of water and air. Stains are effectively removed on such fabrics as polyester/cotton blends and cotton, and a washing machine having delivery means for delivering a stain pretreating solution under pressure.

Abstract: A treatment apparatus and method that greatly increases the efficiency and flexibility in using ozone in the laundry process by permitting an operator to set the level of dissolved ozone concentration delivered to the washing machines, depending upon the amount and type of soil on the laundry. Furthermore, the present invention ensures that there is enough dissolved ozone available in the wash water to meet the demand of the washing apparatus. Lastly, the present invention monitors and maintains the desired amount of dissolved ozone to be delivered to the washers.

Abstract: An ozonization system (100, 200 or 300) for washing and cleaning objects (71) is described. The system includes a container (110, 210 or 310), an ozonization unit (50) and a diffuser assembly. The container can be a standard kitchen sink, a commercial sink, enclosure (30) or an airtight box (410). The ozonization unit contains a pump (8), an ozone generator (6) and a water separator (162, 262 or 362) which are all controlled by a control circuit (5). The diffuser assembly in one embodiment is a diffuser wand assembly which fits within the standard spray opening (110A) of a kitchen sink. The diffuser tip (129) is inserted into the container and the ozone is diffused into the container through the diffuser tip. In another embodiment, the container has a diffuser plate (214 or 314) spaced apart from the bottom. The ozone is inserted into the gap (213 or 313) between the diffuser plate and the bottom of the container. The ozone is diffused from the gap through the diffuser plate into the container.

Abstract: A liquified gas dry-cleaning system having a pressure vessel for containing a liquid wash bath and a perforated basket rotatably supported within the pressure vessel for containing items during cleaning. For enhancing cleaning and the removal of solid particulate matter on the items to be cleaned, the basket has a plurality of radial mixing baffles fixed to the periphery of the rotary basket and a plurality of gas jet manifolds fixed to the baffles which are operable for directing pressurized jet streams of liquified gas into the basket for agitating the contained items and wash bath simultaneously with physical agitation by the mixing baffles.

Abstract: A pressurized pretreatment process for removal of stains on fabrics prior to washing employing means for delivering a stain pretreating solution under the pressure of water or air or a combination of water and air. Stains are effectively removed on such fabrics as polyester/cotton blends and cotton, and a washing machine having delivery means for delivering a stain pretreating solution under pressure.

Abstract: An automatic laundry washing machine that is suitable for use in living units having no area set aside for laundry facilities is achieved by replacing the heavy bulky parts of the currently popular automatic washing machine design with a light flexible bag. A large portion of the volume of any washing machine is the vessel for containing the laundry solution and articles to be washed. That vessel is a flexible bag made of modern durable material so as to be collapsible both while in use and for storage. The method of use includes the complete process of washing, rinsing, and extracting excess water in an automatic cycle analogous to standard automatic washing machines popular today. The vessel containing the items being laundered is a waterproof laundry bag with automatic washing apparatus attached. Items are automatically washed in that bag.

Abstract: An apparatus for cleaning a fiber mass suspension, the apparatus comprising a receptacle and an inlet channel and an outlet channel for feeding the suspension into and for discharging it from the receptacle. In addition, the apparatus comprises air feed means for feeding air into the lower portion of the receptacle. The apparatus comprises at least one partition wall dividing the receptacle into spaces in such a way that the suspension may flow between the spaces at the lower portion and the upper portion of the partition wall, respectively. The air feeding means are positioned to feed air into one aeration space, whereby the air separates impurities from the suspension and makes the suspension flow on different sides of the partition wall upwards and downwards, respectively, so that a spiral flow is created around the partition wall from the inlet channel into the outlet channel.

Abstract: Outlets of a contraction/enlargement exhaust nozzle type are formed in an air bubble-generating plate from which fine air bubbles are generated. The outlets are constituted with outer outlets and inner outlets. The outer outlets are formed along edge portions of the air bubble-generating plate and the inner outlets are formed in the inner portions of the air bubble-generating plate. Each of the outlets has a flow-in portion, a contraction portion, and a flow-out portion which are aligned in a coaxial line and have different diameters, so that each of the outlets are formed in a shape of a contraction/enlargement exhaust nozzle type. A diameter of the flow-out portion is smaller than a diameter of the flow-in portion, but larger than a diameter of the contraction portion. A height of the contraction portion is larger than a height of the flow-out portion, but smaller than a height of the flow-in portion.

Abstract: Disclosed is a washing machine having a device for eliminating hydrophobic substances contained in washing water, such as oil or hydrophobic groups of detergent. The device comprises a part for generating bubbles by spraying washing water, a part for separating the bubbles containing hydrophobic substances from the sprayed washing water, and a part for collecting the hydrophobic substances by drawing the separated bubbles. The washing water in which the hydrophobic substances have been eliminated is circulated into a tub. The circulated washing water contains detergent having only hydrophilic substances, so the washing operation is effectively performed, water contamination caused by the drained washing water is prevented, and laundry is effectively rinsed.

Abstract: An air bubble generator for a washing machine has an open box-type case, a porous member, and a plate. The open box-type case has an inlet in the bottom thereof for a passageway of compressed air and space therein for accommodating the compressed air. The porous member provides the accommodated compressed air with passageways. The plate fixedly covers the open box-type case and has through-holes therein. The plate provides air bubbles in the washing water. The porous member has a plurality of compartments symmetrically arranged with respect to each other. The plurality of compartments are arranged along the upper surface of the porous member. Each of the plurality of compartments is spaced apart from the bottom of the case.

Abstract: A dispenser for a washing machine integrates a bubble generator, an ozone generator, and a radical generator. In the dispenser for a washing machine, a housing has a gas mixing chamber therein. A bubble generator is disposed in the housing and generates air for generating air bubbles and ozone and pumping to the gas mixing chamber. An ozone generator is disposed in the gas mixing chamber and applies high voltage to the air introduced in the gas mixing chamber from the bubble generator in order to produce ozone. A radical generator has a ceramic catalyst for decomposing the ozone from the ozone generator into an oxygen for generating air bubbles and a generating oxygen to be reactive with a hydrogen ion in washing water in order to generate a radical. The dispenser sterilizes bacilli such as bacteria, viruses, mold, fungi, or algae which live in washing water or clothes. The dispenser also improves washing effect of a washing machine by oxidizing and bleaching actions of ozone and radical.

Abstract: A dry-cleaning system operable for selectively controlling agitation of items during cleaning, rinsing, and draining cycles. The dry-cleaning system includes a pressure vessel for containing a liquid gas dry-cleaning solvent and a rotary basket disposed within the vessel for containing items to be cleaned. Controlled agitation is achieved by the combination of (1) driving the basket by a directional, variable speed motor and (2) a simultaneously selectively operable gas jet system having a plurality of nozzles rotatable with the basket for directing pressurized jet streams into the liquid wash bath.

Abstract: The invention includes a method of reducing the microbial population on a textile in a washing machine. The washing machine has an outer shell for containing fluids and an internal assembly for containing textiles. The method includes introducing a wash liquor into the internal assembly, thus contacting the textile with the wash liquor and wetting the textile. The wash liquor is then removed from the internal assembly and the outer shell at a first point. At a second point, a combination of ozone gas, oxygen and/or oxygen enriched air is mixed into the wash liquor being removed from the outer shell to form an ozonated wash liquor. This ozonated wash liquor is re-introduced into the outer shell and internal assembly thus contacting the textile with the ozonated wash liquor for a period of time.

Abstract: A system and method for treating laundry with ozone is provided including a controller that receives a load signal based on a wash load selection. In response to the load signal, the controller transmits a power supply control signal to a variable power supply to vary an output potential to an ozone generator. The controller transmits a dryer control signal to an air dryer to provide desiccated air to the ozone generator. The controller transmits a sparging pump control signal to a sparging pump to pump the ozone generated by the ozone generator to a sparging rod adjacent the drain of a laundry machine where the ozone is dispersed directly into the wash liquor. In a preferred embodiment, an adapter removably secures the sparging rod to the wall of the laundry machine so that the sparging rod may be readily removed for cleaning, repair or replacement.

Abstract: A system and method for treating laundry with ozone is provided including a controller that receives a load signal based on a wash load selection. In response to the load signal, the controller transmits a power supply control signal to a variable power supply to vary an output potential to an ozone generator. The controller transmits a dryer control signal to an air dryer to provide desiccated air to the ozone generator. The controller transmits a sparging pump control signal to a sparging pump to pump the ozone generated by the ozone generator to a sparging rod adjacent the sump of the laundry machine where the ozone is dispersed directly into the wash liquor. In a preferred embodiment, an adapter removably secures the sparging rod to the wall of the laundry machine so that the sparging rod may be readily removed for cleaning, repair or replacement.

Abstract: A pressure vessel for receiving and storing pressurized fluid in a pressurized dense phase liquid dry cleaning apparatus is provided. The dry cleaning apparatus generally includes a cleaning vessel within which garments or the like are cleaned and a solvent recovery device which takes the contaminated cleaning fluid from the cleaning vessel and separates out the contaminants. The pressure vessel comprises a plurality of interconnected hollow structures and as such is substantially self-supporting and occupies less space within dry cleaning apparatus. The pressure vessel can also serve as the support structure for the other components of the dry cleaning system to provide a further cost and space savings.

Abstract: Substantial amounts of particulate soils in garments can be removed by agitation in gas-jet in a solvent-free, low-pressure environment. The ability of the present gas-jet agitation system to remove particulate soils from garments and fabrics rivals that of conventional dry-cleaning processes which agitate the garments and fabrics while immersed in solvent. Thus, a dry-cleaning operation may consist of a solvent-immersion step for removing soluble soils and a gas-jet agitation step to remove particulates. Considerable savings in equipment and operating costs may be realized in the practice of the invention, since solvent flow rates need not be boosted to provide necessary agitation for particulate soil removal. The savings achievable by employing gas-jet agitation are even more pronounced in dense phase gas dry cleaning systems, which require pressurized environments to maintain a liquified solvent.

Abstract: Disclosed is a washing machine having a centrifugal pump which not only sprays washing liquid onto the articles to be washed by circulating the washing liquid, but also supplies air bubbles into a spin tub, thereby improving the washing effect. The centrifugal pump includes a first housing, a second housing fixedly coupled to the first housing, an impeller accommodated in the first housing so as to circulate the washing liquid into a spraying nozzle or into an outer tub, a rotor which rotates in the forward and reverse directions, a driving shaft inserted into a center of the rotor in order to rotate together with the rotor, and a solenoid valve assembly for supplying the air to the impeller. The washing machine generates complex turbulence in the spin tub, thereby preventing the articles to be washed from being tangled at the center of the spin tub.

Abstract: Disclosed is a washing/drying machine which can upwardly blow heated air from a bottom of a spin tub to articles placed in the spin tub, thereby improving a drying effect. The washing/drying machine has a housing and an upper frame mounted on an upper portion of the housing. An outer tub for receiving a washing liquid is disposed in the housing. A spin tub, in which an article to be washed is placed, is accommodated in the outer tub. A pulsator for generating a liquid flow in the spin tub is mounted on a lower portion of the spin tub. An air guide, for guiding heated air towards a bottom wall of the outer tub, is attached to an inside wall of the upper frame. The air guide has a blower and a heater therein. A blowing fan is mounted on the lower portion of the spin tub so as to blow out the heated air towards the side wall of spin tub. An air guiding plate is disposed above the blowing fan so as to guide the heated air into the article in the spin tub.

Abstract: A detergent dissolving device for a clothes washing machine includes a receptacle for powdered detergent, and a cover for covering the top of the receptacle. The cover has a water supply opening. A water jet is provided for discharging a jet of water through the water supply opening along a direction inclined with respect to vertical and horizontal. The water jet is freely rotatable about a vertical axis and includes blades arranged to contact a water flow entering the water jet, whereby the water jet is rotated by the force of the water flow.

Abstract: A modification to atmospheric dye machines, in which the modification increases the attainable operating temperatures to a level in which polyester textiles can be successfully dyed. The modification is accomplished by relocating steam injection to a location which takes advantage of venturi principles and harnesses the slight pressurization obtained by injecting steam into the liquor. The combination increases circulation of dye liquor, convective heat transfer and minimizes the formation of isothermal layering of the dye liquor. Dye liquor subject to reheating is drawn from the tank bottom, further decreasing the amounts of cooler dye liquor which may still collect within the tank.

Abstract: Disclosed is a washing machine having a bubble feeding device installed at the inner surface of a door of the top of a washing body for feeding air bubbles into a rotatable tub to the top of a washer body. The bubble feeding device comprises a telescopic pipe and a drive device for driving the pipe. The drive device includes a motor and first and second pulleys operatively connected to the motor. The second pulley has gear teeth formed on its circumference and a flexible string having a train of teeth is wound on the second pulley to mesh the train of teeth with the gear teeth. The flexible string extends into an inner telescopic pipe coaxially installed within the telescopic pipe and the end of the string is fixed to the lower end of the inner pipe.

Abstract: Substantial amounts of particulate soils in garments can be removed by agitation in gas-jet in a solvent-free, low-pressure environment. The ability of the present gas-jet agitation system to remove particulate soils from garments and fabrics rivals that of conventional dry-cleaning processes which agitate the garments and fabrics while immersed in solvent. Thus, a dry-cleaning operation may consist of a solvent-immersion step for removing soluble soils and a gas-jet agitation step to remove particulates. Considerable savings in equipment and operating costs may be realized in the practice of the invention, since solvent flow rates need not be boosted to provide necessary agitation for particulate soil removal. The savings achievable by employing gas-jet agitation are even more pronounced in dense phase gas dry cleaning systems, which require pressurized environments to maintain a liquified solvent.

Abstract: A modification to atmospheric dye machines, in which the modification increases the attainable operating temperatures to a level in which polyester textiles can be successfully dyed. The modification is accomplished by relocating steam injection to a location which takes advantage of venturi principles and harnesses the slight pressurization obtained by injecting steam into the liquor. The combination increases circulation of dye liquor, convective heat transfer and minimizes the formation of isothermal layering of the dye liquor. Dye liquor subject to reheating is drawn from the tank bottom, further decreasing the amounts of cooler dye liquor which may still collect within the tank.

Abstract: A pressure dehydration low-frequency washing machine with a simplified structure using a single motor and a driving mechanism, including an electromotive rotation shaft horizontally installed below a washing tub, a selective drive for driving an oscillating plate of the washing tub by selectively converting rotation force of the electromotive rotation shaft to a reciprocation force according to the rotation direction of the electromotive rotation shaft, an air-compressor for converting the rotation force of the electromotive rotation shaft to a reciprocation force and compressing air by means of a piston driven by the reciprocation force, a pressure-applying dehydrator for applying pressure and dehydrating the laundry in the washing tub by being expanded by compressed air from the air-compressor when the electromotive rotation shaft is rotated in a direction where the selective drive is not driven, and a controller for selectively transferring the compressed air in the air-compressor to the pressure-applying

Abstract: A clothes washing machine includes outer and inner tubs, the inner tub being rotatable to perform a spin-dry operation. An oscillating pulsator is disposed in the inner tub for agitating water and laundry in the inner tub. A pumping member disposed below the pulsator is oscillatable along with the pulsator for pumping water upwardly through a central opening in the pulsator to generate an upward water current in a center of the inner tube which minimizes entanglement of clothes during a wash cycle.

Abstract: An improved washing machine equipped with a bubble producing apparatus and a bubble producing control method thereof capable of advantageously reducing the needed amount of detergents and preventing laundry from being damaged and entangled. The washing machine includes a washing machine body; an outer tub disposed inside the washing machine body for receiving detergent-containing water therein; an inner tub disposed inside the outer tub for receiving detergent-containing water and laundry therein and having a plurality of water drain holes formed on the circumferential surface thereof; and a bubble producing apparatus disposed on the bottom of the outer tub for producing bubbles.