Abstract: The present invention provides methods for facilitating weight loss in a patient. The methods of the present invention comprise the steps of administering a neurotoxin to a stomach tissue of an obese patient and performing one of several types of bariatric surgeries in the patient, thereby reducing or eliminating unwanted side effects, such as nausea and vomiting.

Abstract: A system for monitoring temperature in a body, the system comprising at least one implantable device, wherein the implantable device(s) is operable to sense temperature in the body and to generate status signals based on the sensed temperature in the body. The system further comprising a system control unit for wirelessly communicating with the implantable device(s), and the system control unit comprising a signal receiver for receiving the status signals, and also a programmable controller for producing notification signals based on the received status signals. A notification unit can alternatively communicate with the system control unit or the implantable device(s) for disclosing the sensed body temperature based on the notification signals.

Abstract: A smoking article may include a cigarette incorporated within an electrically powered aerosol generating device that acts as a holder for that cigarette. The smoking article possesses at least one form of tobacco. The smoking article also possesses a mouth-end piece that is used by the smoker to inhale components of tobacco that are generated by the action of heat upon components of the cigarette. A representative smoking article possesses an outer housing incorporating a source of electrical power (e.g., a battery), a sensing mechanism for powering the device at least during periods of draw, and a heating device (e.g., at least one electrical resistance heating element) for forming a thermally generated aerosol that incorporates components of tobacco. During use, the cigarette is positioned within the device, and after use, the used cigarette is removed from the device and replaced with another cigarette.

Abstract: In a wig 10 comprising a wig base 11 and hairs 12 tied thereon, the wig base 11 is made with a base member 14 of artificial skin and a second base member 15 made of a net member provided on its backside, hairs 12 are knotted to the second base member 15, and inserted and pulled out from the lower side of the first artificial skin base member 14 to the surface side, thereby a wig 10 is obtained in which a needle foot is not formed on the backside of a wig base, and which has such natural appearance as if the hair 12 grows from skin pores, and excels in appearance.

Abstract: The invention provides a manicure tool and method, specifically designed for the application of fingernail polish to the nail beds of human fingernails. The invention is described as a nail polish applicator with a central hub and four different sized, slightly concave protrusions on which the end of each has inverted crescent shaped ends.

Abstract: A hair styling apparatus comprising a handle and a hair styling member with a transparent window. The transparent window has substantially transparent electric heating substances which are distributed along the hair styling member.

Abstract: Disclosed is a powder vessel for makeup including a container body for storing powder, a coupling member coupled to a top portion of the container body, the coupling member having a stopper rib and a receiving bore provided above the stopper rib, an elastically deformable plug member fitted into the receiving bore of the coupling member and resting against the stopper rib, the plug member having a plurality of discharge holes for allowing the powder to be dispensed from the container body, a dispersion member for allowing the power to be uniformly dispersed to the outside, the dispersion member adapted to enclose an outer portion of the plug member and hold the plug member against removal from the receiving bore of the coupling member, and a cover combined with the coupling member in such a manner as to enclose the dispersion member against exposure to the outside.

Abstract: A motorized flosser comprising an elongated body and a flossing head secured to an end portion of the elongated body. The flossing head oscillates in an arcuate manner. A battery powered motor drives a drive mechanism which reciprocates an output drive shaft, which drive shaft is in turn connected through a flexible drive rod to a drive disc. The drive disc oscillates in a rotary arcuate motion to impart either pure rotary arcuate oscillatory motion or a combined rotary arcuate motion and translatory motion to flossing material carried by a yoke of the flossing head. The flossing head may incorporate a toothpaste holder mounted upon the flossing head or toothbrush bristles mounted upon tines of the yoke of the flossing head.

Abstract: To provide a method for removing foreign matters, capable of easily removing inorganic foreign matters strongly attached to the surface of a substrate made of silicon or glass or the surface of an inorganic coating formed on the substrate surface while the increase of the surface roughness is suppressed, and further capable of preventing reattachment of once removed foreign matters to the substrate surface. A method for removing inorganic foreign matters from the surface of a substrate made of silicon or glass or the surface of an inorganic coating formed on the surface of the substrate, which comprises applying a light beam in a wavelength range which makes the light absorption coefficient of at least one of a material of the substrate, a material of the inorganic coating and the inorganic foreign matters be at least 0.

Abstract: A device for removing layers of corrosion and other coatings from a metal surface is disclosed. Said device includes a signal generator driving an induction coil that is positioned on the structure. A control unit includes a temperature sensor that senses the temperature in the metal structure. The control unit is adapted to control the power output of the signal generator in accordance with the temperature in the metal structure.

Abstract: Methods of cleaning backing plates of electrode assemblies, or electrode assemblies including a backing plate and an electrode plate are provided. The methods can be used to clean backing plates and electrode plates made of various materials, such as silicon electrode plates and graphite and aluminum backing plates. The backing plates and electrode assemblies can be new, used or refurbished. A flushing fixture that can be used in the cleaning methods is also provided.

Abstract: Metal residue on a semiconductor surface resulting from metal chemical mechanical polishing (“CMP”) process are eradicated using a dry clean process. The dry cleaning uniformly removes or substantially eliminates metal residue from the surface of the semiconductor. An unintended metal short that may be present due to the residue may thereby be eliminated by adjusting the dry cleaning process based on a type of dry cleaning material, and type and a thickness of the residue.

Abstract: A grinding machine cleaning system and method provides a range of human safe products that can easily be introduced into the grinding chamber and cycled through the equipment. Some of the products include corn cobs, walnut shells, pecan shells, nuts, rice, dried corn kernels, corn meal, barley, wheat, bulgur, and other grain, fiber, legume, nut, bark, and shell products in varying shapes and sizes. Organic products have largely been considered ideal. However, inorganic materials also my be used with equal effect.

Abstract: The invention relates to a device and method for cleaning, activating or pre-treating workpieces by blasting a carbon dioxide snow which is produced from pressurized CO2-containing fluids and at least one type of carrying compressed gas and is accelerated by means of a discharge nozzle (14), wherein a two-phase carbon dioxide mixture of a carbon dioxide gas and carbon dioxide particles is produced in an agglomeration chamber (8) by agglomerating and compressing carbon dioxide snow crystals which are radially added to the carrying gas in a multistage mixing chamber (10, 11, 12) comprising a central jet pipe (4), around which the carbon dioxide mixture circulates and which is used for supplying said carrying gas in such a manner that a high-energy turbulent gas flow for processing a workpiece is obtainable.

Abstract: Provided area cleaning apparatus and an associated method of using the disclosed apparatus wherein the apparatus utilizes one or more nozzles configured to provide a coherent stream of one or more cleaning fluids for removing accumulated fine particulate matter, sludge, from surfaces. The nozzles may be sized, arranged and configured to provide coherent streams that maintain the initial stream diameter for a substantial portion of the maximum dimension of the space being cleaned. The apparatus and method are expected to be particularly useful in the cleaning of heat exchangers incorporating a plurality of substantially vertical and narrowly spaced tubes by directing cleansing streams along a plurality of intertube spaces.

Abstract: A substrate is inclined when treatment liquid is ejected onto the substrate to remove photoresist from the substrate. Uniform processing of the substrate with the treatment liquid and collection of the treatment liquid are thus facilitated. Collected treatment liquid is treated with ozone and then reused.

Abstract: A method of and system for cleaning a surface applies a first fluid to the surface by feeding the first fluid from a unitary cleaning receptacle removably secured to a cleaning unit and moves the unitary cleaning receptacle relative to the cleaning unit to agitate the cleaning solution.

Abstract: A method to prevent deposits on a ceramic surface comprising: (1) pretreating the surface by applying an aqueous solution containing from about 200 ppm to about 1000 ppm by weight of an amphoteric fluorosurfactant, and (2) periodically applying an aqueous maintenance solution comprising from about 1 ppm to about 200 ppm of at least one of an amphoteric or cationic fluorosurfactant or a mixture thereof, from about 5 ppm to about 100 ppm of a sequestering acid, and from about 2.5 ppm to about 200 ppm of a quaternary ammonium biocide compound, wherein all concentrations are by weight of aqueous solution is disclosed.

Abstract: A method of sanitizing a washing machine, including the removal of a bio film from the wash chamber of a clothes washer.

Abstract: A substrate processing apparatus includes a substrate holding unit for holding a substrate to be processed substantially horizontally, a process liquid nozzle for supplying a process liquid to a main surface of the substrate held by the substrate holding unit, a gas nozzle for supplying an inert gas to the main surface of the substrate held by the substrate holding unit, a gas nozzle moving unit for moving the gas nozzle along the main surface, and a control unit for carrying out a liquid film forming process for forming a liquid film of the process liquid on a whole area of the main surface of the substrate held by the substrate holding unit by supplying the process liquid from the process liquid nozzle to the main surface of the substrate, and a liquid film free region forming process for forming a liquid film free region from which the liquid film is removed away in a region of the main surface not including a center of the main surface by supplying an inert gas to the main surface on which the liquid film

Abstract: The present invention relates to a fluid aqueous composition for cleaning an electric personal care apparatus, in particular an apparatus for removing hair, the composition comprising at least one alkyl benzene sulfonate; and at least one non-ionic surfactant. The invention further relates to a method for preparing said fluid composition and to the use of said fluid composition.

Abstract: The present invention relates to a dishwasher (1) wherein the irritating odor that dissipates as the result of long keeping of the dirty dishes in the tub (2) with the door closed between two consecutive operations like operating the dishwasher once a week, is prevented and a control method thereof.

Abstract: A portable domestic steam cleaner has a housing accommodating a releasable water tank. A pump transfers water from the tank to a boiler for generating steam. In use, steam exits a nozzle for cleaning etc. A pump suitable for use in the steamer is also disclosed.

Abstract: In this dishwasher 1, a spring 33 utilized for moving a door 7 up and down is accommodated within a column 6 of a washer body 2, so as to be confined within the column 6, whereby the appearance becomes better while the spring 33 is protected against water. Also, the space between left and right columns 6, 6 can be utilized as a washing chamber 3, thus making it possible to expand the washing chamber 3, whereby the dishwasher can be made smaller while keeping the capacity of the washing chamber 3.

Abstract: A unit for washing containers comprises a conveying device for supporting and advancing in an orderly manner said containers to a grasping, moving and washing device; the grasping, moving and washing device comprises at least a conveyor provided with a grasping arrangement for grasping in succession groups of said containers from said conveying device at a first operating position and at least a bank of nozzles for dispensing and diffusing washing liquid substances inside the containers; the unit further comprises a moving actuating arrangement for moving with reciprocating motion in relation to each other said conveyor and the bank of nozzles for causing the insertion of the nozzles inside the groups of said containers at a second operating position.

Abstract: The nozzle beam is arranged on a device for generation of liquid streams for the treatment of fibres of a material web running along the nozzle beam. The nozzle beam comprises an upper piece (4), running across the working width of the web and a lower piece (5), which runs out into a liquid outlet slot (10). According to the invention, a nozzle strip (14) is arranged below the liquid outlet slot (10) and an easily detachable so-called masking strip (18) is mounted directly above the above in a liquid-tight manner, when viewed in the flow direction of the water jet. A part of the nozzle outlet opening on the nozzle strip is covered by the masking strip (18) and a part is left free, whereby liquid jets emerge from the part left free and form a continuous liquid curtain. According to the invention, a nozzle strip (14) with a maximum stream width is fitted to the nozzle beam.

Abstract: A solar powered umbrella is disclosed for powering multiple components such as an automatic anchoring device, LED lights, a speaker and/or audio system and bug repeller and/or thermoelectric heating/cooling device. The umbrella includes a canopy, an auger, a solar panel or cell, a momentary 3-way/function toggle switch, and a charging and power socket. The auger is used to anchor the device into and out malleable surfaces such as earth, dirt, grass, etc. The umbrella also includes rechargeable batteries, an electric motor and a gearbox. The shaft from the gearbox protrudes thru and outside the housing of the bottom of the lower tubular member which adapts/connects to the helix/auger. When a waterproof 3-function toggle switch is pushed downward, the helix is driven into the ground and visa-versa. Additional methods of charging consist of an AC and/or DC adapter.

Abstract: Energy harvesting devices are disclosed. An illustrative embodiment of the energy harvesting devices includes a fastening device, a first thermally-conductive element engaging the fastening device, a thermoelectric device disposed in thermal contact with the first thermally-conductive element and a second thermally-conductive element disposed in thermal contact with the thermoelectric device.

Abstract: One-dimensional nanostructures having uniform diameters of less than approximately 200 nm. These inventive nanostructures, which we refer to as “nanowires”, include single-crystalline homostructures as well as heterostructures of at least two single-crystalline materials having different chemical compositions. Because single-crystalline materials are used to form the heterostructure, the resultant heterostructure will be single-crystalline as well. The nanowire heterostructures are generally based on a semiconducting wire wherein the doping and composition are controlled in either the longitudinal or radial directions, or in both directions, to yield a wire that comprises different materials. Examples of resulting nanowire heterostructures include a longitudinal heterostructure nanowire (LOHN) and a coaxial heterostructure nanowire (COHN).

Abstract: A first conductive member and a second conductive member having different Seebeck coefficients are joined together by a joining member to form a plurality of thermoelectric conversion elements, and these thermoelectric conversion elements are disposed in at least two different temperature environments. The first conductive members of respective thermoelectric conversion elements or the second conductive members thereof are connected to each other by an electric wiring to form a direct energy conversion electric circuit system, and electric potential energy is picked up from an arbitrary portion on this electric wiring. Accordingly, the direct energy conversion electric circuit system from thermal energy to electric energy is formed.

Abstract: The present invention provides a method for producing a half Heuslar alloy including quench-solidifying a molten alloy at a cooling rate of 1×102 to 1×103° C./sec to produce a Heuslar alloy represented by the formula: ABC (wherein A and B each is at least one member selected from transition metals such as Fe, Co, Ni, Ti, V, Cr, Zr, Hf, Nb, Mo, Ta and W, and C is at least one member selected from Group 13 or 14 element such as Al, Ga, In, Si, Ge and Sn), and a high-performance thermoelectric power generating device using the thermoelectric semiconductor alloy.

Abstract: A portable computer includes a base with a motherboard secured thereto, a display pivotably attached to the base, and a solar cell module. A first connector is installed to the display and electrically connected with the motherboard. The solar cell module has a solar panel. A plurality of photovoltaic sheets is arranged on the solar panel for converting solar energy into electric energy. A second connector is electrically connected with the solar panel. The solar cell module is detachably mounted to the display with the second connector connecting with the first connector such that the electric energy is capable of being transmitted to the motherboard via the first connector and the second connector.

Abstract: Devices and methods are disclosed applicable to optical power converters such as solar cells comprising one or more photovoltaic layers for generating an electric potential between a top and bottom surface of the layers. A frontside metal contact is patterned on the top surface using a lithographic process such that open areas between metal features are contiguous. The pattern may include an opening between the contiguous open areas to an edge of the top surface of the layers. A pattern in this form facilitates easy removal of metal in these areas during device fabrication because liftoff of the unused metallization comprises removing metal as a contiguous piece, rather than multiple isolated regions. The opening to the edge further aids processing providing an entry path for solvent to dissolve the lithographic layer underlying the unused metallization.

Abstract: A solar cell includes a semiconductor substrate and a sequence of semiconductor layers disposed over the substrate. The sequence of semiconductor layers includes a semiconductor window layer. The solar cell also includes a semiconductor silicon-containing cap layer over the window layer. The cap layer is spatially separated from the window layer by a semiconductor barrier layer that either includes no silicon or has a silicon concentration that is significantly lower than the silicon concentration of the cap layer.

Abstract: A semiconductor apparatus is disclosed. The apparatus includes a first doped volume of semiconductor material, the first doped volume having a front surface and first and second adjacent regions. The first region has a first concentration of dopant and a first exposed area on the front surface. The second region has a second concentration of dopant and a second exposed area on the front surface, the second concentration being higher than the first concentration. The apparatus also includes a first external conductor and an alloy bonding the first external conductor to the second exposed area to ohmically connect the conductor to the second region.

Abstract: Photovoltaic structures for the conversion of solar irradiance into electrical free energy. In a particular implementation, a photovoltaic cell includes a granular semiconductor and oxide layer with nanometer-size absorber semiconductor grains surrounded by a matrix of oxide. The semiconductor and oxide layer is disposed between electron and hole conducting layers. In some implementations, multiple semiconductor and oxide layers can be deposited.

Abstract: Photovoltaic structures for the conversion of solar irradiance into electrical free energy. In particular implementations, the novel photovoltaic structures can be fabricated using low cost and scalable processes, such as magnetron sputtering. In a particular implementation, a photovoltaic cell includes a photoactive conversion layer comprising one or more granular semiconductor and oxide layers with nanometer-size semiconductor grains surrounded by a matrix of oxide. The semiconductor and oxide layer can be a disposed between electrode layers. In some implementations, multiple semiconductor and oxide layers can be deposited. These so-called semiconductor and oxide layers absorb sun light and convert solar irradiance into electrical free energy.

Abstract: Embodiments of the invention contemplate the formation of a low cost solar cell metal contact structure that has improved electrical and mechanical properties through the use of an electrochemical plating process. The resistance of interconnects formed in a solar cell device greatly affects the efficiency of the solar cell. It is thus desirable to form a solar cell device that has a low resistance connections that is reliable and cost effective. One or more embodiments of the invention described herein are adapted to form a low cost and reliable interconnecting layer using an electrochemical plating process containing common metal, such as copper. However, generally the electroplated portions of the interconnecting layer may contain a substantially pure metal or a metal alloy layer. Methods are discussed herein that are used to form a solar cell containing conductive metal interconnect layer(s) that have a low intrinsic stress.

Abstract: Method and structure for hydrogenation of silicon substrates with shaped covers. According to an embodiment, the present invention provides a method for fabricating a photovoltaic material. The method includes providing a semiconductor substrate. The method also includes forming a crystalline material characterized by a plurality of worm hole structures therein overlying the semiconductor substrate. The worm hole structures are characterized by a density distribution from a surface region of the crystalline material to a defined depth within a z-direction of the surface region to form a thickness of material to be detached. The method further includes providing a glue layer overlying a surface region of the crystalline material. The method includes joining the surface region of the crystalline material via the glue layer to a support substrate.

Abstract: A photovoltaic device and related methods of manufacture. The device has a support substrate having a support surface region. The device has a thickness of crystalline material overlying the support surface region of the support substrate. Preferably, the thickness of material has an upper surface region. The device has a glue layer provided between the support surface region and the thickness of material according to a specific embodiment. In a preferred embodiment, the device has a textured surface region formed overlying from the upper surface region of the thickness of crystalline material. Depending upon the embodiment, the device has a plurality of elevated regions having a first thickness defining a first portion of the textured surface region and a plurality of recessed regions having a second thickness defining a second portion of the textured surface region.

Abstract: The solar cell structure is comprised of a base substrate, a face side on which the light falls, and a rear side, on which all the electrical contacts are arranged, and which collects the carriers photogenerated at its face side. The base substrate features thinned zones, or zones of reduced thickness, in which bipolar transistors are constituted; bipolar transistors which transport the carriers photogenerated at its face side towards its rear side. When the substrates are p-type, the bipolar transistors are npn, whereas when the substrates are n-type, the bipolar transistors are pnp. These structures may be manufactured by means of industrial methods which are compatible with screen printing techniques.

Abstract: In a method of making a c-Si-based cell or a ?c-Si-based cell, the improvement of increasing the minority charge carrier's lifetime, comprising: a) placing a c-Si or polysilicon wafer into CVD reaction chamber under a low vacuum condition and subjecting the substrate of the wafer to heating; and b) passing mixing gases comprising NH3/H2 through the reaction chamber at a low vacuum pressure for a sufficient time and at a sufficient flow rate to enable growth of an a-Si:H layer sufficient to increase the lifetime of the c-Si or polysilicon cell beyond that of the growth of an a-Si:H layer without treatment of the wafer with NH3/H2.

Abstract: Provided is an integrated amorphous silicon double-junction solar cell curtain wall, comprising a plurality of photovoltaic curtain wall plates, each of which being encapsulated by a double-junction amorphous silicon solar cell chip with a glass substrate, a glass plate, a glue film, a junction box, a lead and a frame; and an electric control unit having a controller; wherein an output of the photovoltaic curtain wall plate is connected to the controller of the electric control unit. A double-junction double-layer solar cell top cell film layer and a bottom cell film layer are disposed on a glass substrate of the cell chip, each of the top cell film layer and the bottom cell film layer comprising a P-layer, an I-layer, and an N-layer; an I-layer of the top cell film layer is amorphous silicon; and an I-layer of the bottom cell film layer is amorphous silicon or amorphous germanium-silicon.

Abstract: A photovoltaic device and related methods. The device has a structured material positioned between an electron collecting electrode and a hole collecting electrode. An electron transporting/hole blocking material is positioned between the electron collecting electrode and the structured material. In a specific embodiment, negatively charged carriers generated by optical absorption by the structured material are preferentially separated into the electron transporting/hole blocking material. In a specific embodiment, the structured material has an optical absorption coefficient of at least 103 cm?1 for light comprised of wavelengths within the range of about 400 nm to about 700 nm.

Abstract: Disclosed herein is a light-absorbing layer for a solar cell with enhanced sunlight absorption comprising CuGaSe2, CuIn1-xGaxSe2 and CuInSe2 thin films laminated one another. Further disclosed is a method of manufacturing the light absorbing layer. The method comprises the steps of: forming an InSe thin film from a single precursor containing In and Se on a substrate by metal organic chemical vapor deposition; forming a Cu2Se thin film using a Cu precursor on the InSe thin film by metal organic chemical vapor deposition; forming a CuGaSe2 thin film using a single precursor containing Ga and Se on the Cu2Se thin film by metal organic chemical vapor deposition; and forming a CuGaSe2/CuInSe2 multilayer thin-film structure using the single precursor containing In and Se and the Cu precursor on the CuGaSe2 thin film by metal organic chemical vapor deposition.

Abstract: A method of fabricating a photovoltaic cell for use in a solar cell structure includes preparing a first substrate; preparing a TiO2 precursor; preparing a cold wall CVD chamber; placing the first substrate in the cold wall CVD chamber; forming a transparent conducting electrode on the first substrate; depositing a porous column TiO2 film on the transparent conducting electrode; depositing a photosensitive material in and on the porous column TiO2 film; forming a top electrode on the photovoltaic cell; and incorporating the photovoltaic cell into a solar cell structure. The method of the invention is suitable for forming photovoltaic cells which may be of the dye-sensitized solar cell (DSSC) type, having a liquid or solid-state electrolyte therein, or an ordered organic-inorganic heterojunction photovoltaic cell.

Abstract: The invention concerns an exclusively mechanical stand-alone device for controlled watering by sprinkling, wherein a soil simulating member, having an absorbent body associated with a reclinable cup arranged beneath, contributes to determination of the interval between two watering operations. A balance arm, bearing the absorbent body and an annular magnet, is mounted and balanced by a compressed spring, contributing to the determination of the opening and closing times of a valve. The valve includes a hydraulic relay with a nozzle triggering its opening or closure, in response to the displacement of the magnet field. An impermeable sleeve encloses the core and the nozzle. A sliding canopy enables one of the parameters determining the duration of the watering operation to be adjusted. A thermostatic element has an adjustable position preventing watering in sunshine. The device is mounted rotating on a pivot including the base of the sleeve and a tail unit.

Abstract: An embodiment of a water control apparatus is disclosed that may be used with a concrete mixing assembly. The apparatus may include flowmeter unit and a normally closed valve unit. The normally closed valve unit may be in fluid communication with, and removably connected to, the flowmeter unit. A control unit may be provide that may monitor the flowmeter unit and electronically control the opening and close of the normally closed valve unit. A switch may be also provided that may electrically communicate with the control unit. The activation of the switch being operable to cause the normally closed valve to open and result in the flow of water into a concrete mixing drum that is in fluid communication with the normally closed valve.

Abstract: Nearly all residential and commercial buildings in the United States contain systems for the collection, flow, and run off of rainwater and condensation. Most of that water is funneled into existing municipal drainage systems or simply diverted onto the adjoining ground, but away from the building structure. This invention adds to that system a means to capture and store some of that water. It is intended primarily for residential use, but could be used in commercial applications as well. The invention interrupts the flow of water traveling through the down spout and diverts a preset amount into a storage tank. An exit back into the existing down spout carries all water back into the drainage system over and above that stored in the tank. It contains a flow control system that can be set to force all water through the normal drainage system, this is primarily for cold weather climates where freezing would be a concern in the storage tank.

Abstract: Device for separating oil from the de-aeration of an oil reservoir, which device comprises a line (3) for the de-aeration which is connected to the above-mentioned oil reservoir (1) with one far end and in which is provided a suction pump (4) for sucking in air, and whereby the other far end of the above-mentioned line (3) is connected to a filter (7) which is provided in a chamber (8) which is connected to the above-mentioned oil reservoir (1) by means of a return line (9), and which chamber (8) is provided with an outlet (10) to the environment, characterised in that a non-return valve (12) is provided in a the above-mentioned return line (9) which lets an air flow pass from the oil reservoir (1) to the chamber (8), and which prevents an air flow in the opposite direction, and whereby this non-return valve is provided with a small flow-back opening (16) which allows the oil which has been separated in the chamber (8) by the filter (7) to flow back to the oil reservoir (1).