Showing papers on "Diffuser (sewage) published in 2003"

Gas distribution plate assembly for large area plasma enhanced chemical vapor deposition

Abstract: Embodiments of a gas distribution plate for distributing gas in a processing chamber are provided. In one embodiment, a gas distribution plate includes a diffuser plate having a plurality of gas passages passing between an upstream side and a downstream side of the diffuser plate. At least one of the gas passages includes a first hole and a second hole coupled by an orifice hole. The first hole extends from the upstream side of the diffuser plate while the second hole extends from the downstream side. The orifice hole has a diameter less than the respective diameters of the first and second holes.

Bulk diffuser for flat panel display

Abstract: The invention features a bulk light diffuser material. The bulk light diffuser material may be a sheet or film comprising about 95 to about 99.8 percent by weight of polycarbonate and about 0.2 to about 2.5 percent by weight of a particulate light diffusing component, based on the total weight of the polycarbonate and the light diffusing particles (128). The sheet material has a percent transmittance of at least 70% and a haze of at least 10% measured according to the American Society for Testing and Materials (ASTM) standard D 1003.

Pulmonary dosing system and method

Abstract: A pulmonary dosing system and method for supplying to a patient a predetermined amount of respirable therapeutically active material is disclosed. The system comprises a patient interface to introduce the material into the patient's lungs and an apparatus for providing pulsed amounts of the material to a plenum chamber. The plenum chamber has a diffuser baffle which increases the efficiency of the dosing system by preventing axial flow of the active material thereby utilizing the available volume of the chamber for holding the aerosolized drug prior to inhalation.

Solvent pulping of biomass

Abstract: An apparatus and process for solvent pulping of cellulose-containing biomass utilizes at least one steaming vessel, a plug screw feeder or compression screw device, at least one super-atmospheric impregnation vessel, a solvent delignification reactor capable of operating at a pressure of 350 psig or more, and a solvent containing line for introducing solvent-containing liquor at the plug screw feeder outlet or compression screw device outlet. The process and system can also include at least one series connected pressure diffuser and optionally a retention tube downstream of each pressure diffuser to provide sufficient retention time to substantially preclude re-deposition of lignin on the cellulose fibers of the biomass, a blow tank connected to the last of the pressure diffusers and retention tubes, and vessels for multistage alcohol washing. The method steams the biomass and impregnates it with solvent to produce an aqueous slurry of biomass and solvent, delignifies the particulate biomass in the slurry, removes solvent while continuing delignification of the biomass in the slurry and while substantially precluding re-deposition of lignin on the cellulose of the biomass, reduces the pressure of the slurry; and then washes the slurry.

Welding contact tip and diffuser

Abstract: A welding contact tip and diffuser assembly for use in a welding apparatus. The assembly includes an electrically conductive contact tip having a tapered exterior surface, a diffuser having a cavity with a tapered interior surface, and a releasable connection for holding the contact tip in the diffuser. The connection includes at least one detent element in either the diffuser or the contact tip, at least one recess forming a ramp in the other of the diffuser or contact tip, and at least one spring. The spring biases the detent element into the recess and against the ramp to generate an axial force against the ramp. The axial force tends to urge the tapered surfaces of the contact tip and diffuser into contact with one another.

Direct backlight module

Abstract: A direct backlight module The direct backlight module includes a diffuser, a reflecting plate, an illumination tube and a support The reflecting plate is disposed under the diffuser The illumination tube is disposed between the diffuser and the reflecting plate The support is disposed on the reflecting plate and between the diffuser and the reflecting plate In addition, the support has a fitting portion into which the illumination tube directly fits The support supports the diffuser and the illumination tube simultaneously

Variable geometry diffuser mechanism

Abstract: A compressor (100) includes an impeller (124) rotatably mounted in a housing (120) and a base plate (126) fixed to the housing (120) adjacent the impeller (124). The base plate (126) cooperates with the housing (120) to define a diffuser gap (134). The base plate (126) includes a plurality of mechanism support blocks (180). A drive ring (250), mounted to the support blocks (180), is rotationally moveable with respect to the support blocks (108) and the base plate (126). Connected to the drive ring (250) is a diffuser ring (130) that moves in response to movement of the drive ring (250). The diffuser ring (130) can be positioned at any location between a retracted position that is not within the diffuser gap (134) and an extended position within the diffuser gap (134) to constrict the gap opening to control the amount of fluid flowing through the diffuser gap (134).

Airbag fabric diffuser

Abstract: A perforated fabric diffuser (24) and perforated cushion deflector (40) are sewn inside an outer shell (12), thus forming a diffuser system (82) within an airbag (10). The diffuser (24) contains a plurality of openings (26) along a folded edge. The deflector (40) contains a wall (44) defining at least one orifice for attenuating gas flow upon airbag activation. The airbag (10) contains an inlet (22) that fluidly communicates with the deflector (40) and diffuser (24) upon airbag (10) activation. The outer shell (12) is preferably sewn in such a manner as to maintain a pluraltiy of individual cell areas (20). The fabric diffuser system is disposed within the outer shell (12) such that the diffuser openings (26) are positioned generally over the individual cells (20). During deployment, the diffuser system (82) thereby functions to facilitate substantially even inflation throughout the airbag (10).

Flow diffuser to be used in electro-chemical plating system

Abstract: An apparatus comprising an electrolyte cell, an anode, and a porous rigid diffuser The electrolyte cell is configured to receive a substrate to have a metal film deposited thereon An anode is contained within the electrolyte cell A porous rigid diffuser is connected to the electrolyte cell and extends across the electrolyte cell The diffuser is positioned between a location that the substrate is to be positioned when the metal film is deposited thereon and the anode

Interactive, automated aroma diffuser with interface to external device

Abstract: An aroma diffuser that may be adapted to cooperate with a computer, television, CD player, or other media device that is separate and external to the diffuser, to emit one or more aromas into a room or space upon a signal from said external device. The signal from the external device may be wired or wireless, but preferably is a wireless, audible signal included in the CD, VHS, or other pre-recorded media. This way, the control signal is produced by playing of the media on a commercially-available external device, such as any television, without modification of said device's hardware or firmware. Optionally, the diffuser may be manually controlled, or may have multiple modes so it can be manually controlled by the user, or controlled through the user's PC, audio player, or television/VCR unit. The diffuser system may direct/connect the user an internet website for purchase of scent products or other accessories for the system.

Combined diffuser and concentrator for a hair dryer

Abstract: A hand-held hair dryer including a handle, a body connected to the handle portion, a barrel connected to the body portion and having an inner member defining a first air passageway, an outer member slidably coupled to the inner member and defining a second air passageway that is substantially parallel to the first air passageway, a shutter coupled to the inner member and movable in response to sliding of the outer member with respect to the inner member to selectively direct air through the first air passageway and the second air passageway.

Low-pressure dryer and low-pressure drying method

Abstract: A low-pressure dryer dries a substrate applied a coating solution thereon at low pressure. The dryer includes an airtight chamber installing a substrate table to place the substrate thereon; a diffuser plate, provided as facing the substrate placed on the substrate table with a gap, for discharging gas existing in the gap toward outside, the diffuser plate having a size almost the same as or larger than the substrate; a substrate-temperature adjuster, installed in the substrate table, for adjusting a temperature of the substrate; and a decompression mechanism for decompressing the airtight chamber. The diffuser plate has a temperature adjuster for making temperature adjustments to have a temperature difference between a first region and a second region of the diffuser plate, the first region facing a center region of the substrate, the second region being outside the first region and including a region facing an outer region of the substrate.

Pressurized liquid diffuser

Abstract: The invention relates to a diffuser for wet processing systems involved in the manufacturing of semiconductor wafers. The diffuser includes a plenum section and a slitted section. Pressurized fluid from the plenum section is forced through the slitted section and across a plurality of wafers mounted in the wet processing system. One advantage is that by “diffusing” pressurized fluid through the slitted section, a generally uniform and/or laminar flow is achieved. Desirably, the diffuser provides a more reliable, and hence more cost-effective, technology for wet processing fabrication of semiconductor wafers.

Non-separating diffuser for holes produced by a two step process

Abstract: A method for forming non-separating diffuser on cooling holes, consisting of a two step process, wherein the diffusers are formed by a different process or a separate operation than that used for drilling the metering section of the hole.

A step-diffuser for overfire air and overfire air/n-agent injector systems

Abstract: An overfire air injector for use in a fossil fuel-fired combustion device includes a cylindrical nozzle having an outlet end formed with a step diffuser comprising one or more radial steps that enlarge the outlet end of the nozzle. An atomizer lance may be mounted within the nozzle, having a discharge orifice at the outlet end of the nozzle, for supplying a reducing agent to the overfire air to reduce NOx emissions.

Three dimensional model of oxygen transport in a porous diffuser of a PEM fuel cell

Abstract: Binary molecular diffusion and pressure-driven fluxes of gas in porous media are studied. A 2-dimensional model of gas transport in porous media is developed in the field of nonzero gradients of pressure and concentration. Spatial distributions of oxygen concentration and fluxes in a porous diffuser are analyzed for geometric and physical parameters of the electrode. A three-dimensional generalization of the model is performed. Application to oxygen-flow modeling in electrodes of polymer electrolyte fuel cells (PEFC) is discussed for two simple configurations of gas supply channels: serpentine and interdigitated. Comparison of the results obtained for the two configurations is carried out. Oxygen flux through the catalytic membrane plane is investigated for physical characteristics of gases and the diffuser, geometry of the gas supply channels, and gas pressure in them. Recommendations for an optimal pressure regime for the specific geometry of the system and its physical characteristics are given.

Method and system for controlling ion distribution during plating of a metal on a workpiece surface

Abstract: The flow of electrolyte and/or of ions is controlled by a diffuser element provided in a plating reactor, wherein, in one embodiment, the diffuser element comprises a mechanical adjustment mechanism to adjust the effective size of passages of the diffuser element. In another embodiment, the diffuser element comprises at least two patterns of passages that are movable relatively to each other so as to adjust an overlap and thus an effective size of the corresponding passages. Moreover, the path of ions within the plating reactor may be controlled by an electromagnetically driven diffuser element so that a required thickness profile on the workpiece surface may be obtained.

System and method for irritating with aerated water

Abstract: An irrigation system for supplying aerated water to plants includes a diffuser. Oxygen is diffused into water by the diffuser to generate aerated water. The aerated water is supplied to an irrigation device which supplies the aerated water to the plants.

Air bag module diffuser

Abstract: An air bag module comprises an air bag having an interior cavity. The air bag has an air bag opening in communication with the interior cavity. The air bag module has an air bag inflator with an outlet for inflating the air bag. At least one vane extends from the air bag opening into the interior cavity of the air bag.

Strip diffuser pct i

Abstract: Membrane strip diffusers are disclosed, useful for example in aerating wastewater in activated sludge plants. These diffusers have membranes, diffuser bodies and gas conduits elongated in the same general direction. Such conduits may be attached to or formed integrally with the diffuser bodies. Gas chambers form beneath the membranes when they inflate, and these are separate from but communicate with the gas conduits, e.g., through passageways distributed along the lengths of the membrane supports. Preferably, the passageway flow cross-sections are small, thus tending toward uniform distribution of gas along the membrane's length. Ways to edge- and end-seal the membranes to the diffuser bodies are also disclosed.

Method for the manufacture of a vaned diffuser

Abstract: An improved method for manufacturing a vaned diffuser ( 101 ) of a turbocharger, preferably from aluminum or an aluminum alloy, where the vaned diffuser possesses at least one axis ( 115 ) suitable for separating the vaned diffuser from its rigid mold by translation. Casting of a raw vaned diffuser ( 407 ) having an optional central hub ( 205 ) and, optionally, ribs on the hub ( 209 ), is disclosed in a plaster mold ( 305 ). The hub and optional ribs are machine finished from the raw vaned diffuser to yield the finished vaned diffuser ( 101 ). The method provides the high degree of dimensional accuracy, and high quality surface finish, required to produce a vaned diffuser of an efficient turbocharger.

Automobile vent extender

Abstract: An automobile vent extender that decreases discomfort by allowing hot and cold air to be directed from an automobile vent directly onto a body portion of an automobile passenger. Preferably, the automobile vent extender removably attaches to a vent diffuser embedded within the dash of an automobile.

Air diffuser and air diffusion system

Abstract: PROBLEM TO BE SOLVED: To provide an air diffuser and an air diffusion system which inhibit inside accumulation of water to be treated. SOLUTION: The air diffusion system 1 has a water tank 10, an air diffuser 24 installed inside the tank 10 and having cylindrical supporting pipes 28 with grooves 44 formed in a part of the outer periphery of the pipe and extended in the longitudinal direction and membranes 48 having slits S and installed to cover the outer periphery of the supporting pipe, and a part of the supporting pipes is closed with a wall body 30 having air passages 34, 42 formed therein in communication with the groove, and a cylindrical gas supply pipe 22 attached to the air diffuser at the opposite side to the bottom wall 14 of the water tank, and having a ventilation hole 26 communicating with the air passages in the air diffuser. COPYRIGHT: (C)2005,JPO&NCIPI

Multistage pump and method of making same

Abstract: A system and method is provided for constructing an elongated pump. The pump has multiple stages within an outer housing. Each stage comprises an impeller and a diffuser. The diffusers are divided into separate groups that are compressed during construction of the pump.

Back light apparatus

Abstract: A back light apparatus comprises a base having a container, a lamp module, a diffuser, and at least one elastic device. The inside surface of the base are coated a reflection layers. The lamp module consists of CCFLs disposed in the container. One end of the elastic element is fixed on the bottom surface of the container; the other end supports the diffuser. The elastic device reduces the deformation of the diffuser to avoid forming the uneven surface on the diffuser. That is, it can provide the high and even brightness for a liquid crystal display panel.

Passenger air bag system for vehicles

Abstract: A passenger air bag system for vehicles includes an air bag housing directly mounted to a cowl cross member, an inflator mounted in the cowl cross member for discharging gas to the air bag housing through diffuser holes formed at the outer circumference of the cowl cross member when a collision of the vehicle occurs, a connector fixed to the inflator at one end thereof for connecting the inflator and an external device, and a cushion accommodated in the air bag housing such that the cushion is expanded to the front of a passenger seated in a passenger seat by means of the gas discharged from the inflator.