Abstract: An earthmoving device is suspended from a floating body provided with a hull. To that end, suspension means for suspending the earthmoving device in a movable manner along the outside of the hull are provided, for the purpose of carrying out operations on the water bed. In this way the floating body can be refloated after running aground, or can be brought ashore.

Abstract: A stretch hull design comprises of a stern float and a bow float joined longitudinally to each other at some distance apart by a beam making an otherwise short floats a long correspondingly stable hull. Having a little mass toward the middle in the form of a beam, the hull is relatively cheaper to build per lineal unit of length and less subjected to the effect of the waves contributing to a better ride quality and reduces structural stress. It provides a large potential space limited only by the displacement of the floats and the length of the beam. The beam also acts as ballast, keel or centerboard preventing the craft from capsizing and facilitates the mounting of parts in enhancing the performance of the craft.

Abstract: The installation comprises a uni-line drive assembly incorporating a stretched drive guy rope provided at each end with a swivel joint, a driven rotating element and a pair of driving pulleys, the former and the latter being firmly secured to the stretched drive guy rope. A pair of driven pulleys is opposed to the pair of driving pulleys. A pair of endless cables is tensioned between the driving and driven pulleys and each endless cable has an upper path and a lower path. A pair of stretched guide ropes, essentially parallel to the pair of endless cable is used. Each one of the stretched guide ropes is perpendicularly disposed to the stretched drive guy rope and extends from the ends of the latter. At least a pair of carrying lines is perpendicularly disposed with respect to the pair of stretched guide ropes.

Abstract: An apparatus for quickly installing a flag on and removing a flag from a golf hole flag staff is disclosed. A flag staff attachment having laterally displaceable retaining clips is threaded onto the top of a golf hole flag staff, and a retainer cap is installed through the aperture at the top of the sleeve of a golf hole flag. Laterally displaceable retaining clips on the retaining cap engage the flag sleeve's aperture, thereby securing the retaining cap to the flag. An engagement member on the retaining cap displaces the retaining clips of the flag staff attachment, thereby allowing the engagement member to pass therebetween, thereby securing the flag to the staff.

Abstract: A short-term indenting memory device (10) comprises a plurality of flexible tubes (12) in bundled, woven or other intersecting relation to one another to form a mat or pad. The flexible tubes (12) comprise a sealed interior space (16) containing a viscous fluid (18). When an object (22) is set on the pad (10), an indentation (20) is formed therein which persists for some time after the object (12) is removed. In a further aspect, a method of providing a reminder comprises providing an indenting memory device (10) in accordance with this teaching. An object (22) set on a surface (14) thereof creates an indentation (20) which persists for a period of time after the object (22) is removed, thereby providing an indicium of whether the object (22) was previously present on the memory device (10).

Abstract: The present invention provide a tennis scoring apparatus wherein a scoreboard will have a baseplate having at least a pair of windows extending therethrough and a pair of scoring wheels with numerals displayed thereon in numerical order from 1 to 8 rotatably attached to the baseplate such that as the scoring wheel is rotated about its attachment to the baseplate the numerals displayed on the scoring wheels will successively appear in the windows. Thus, as a point is scored by a player during the game, the appropriate player's scoring wheel can be rotated such that the correct number of points is showing through the window.

Abstract: The invention relates to a method and a device for producing globular grains of high-purity silicon by atomising a silicon melt (6) in an ultrasonic field (10). Globular grains having a grain size of 50 &mgr;m can be produced by means of said method and device and can be used to separate high-purity silicon from silane in the fluid bed. The silicon melt (6) is fed into the ultrasonic field (10) at a distance of <50 mm in relation to a field node, and the atomised silicon leaves the ultrasonic field (10) at a temperature close to the liquidus point. The invention also relates to a use of the product produced according to the inventive method or using the inventive device, as particles for producing high-purity silicon from silane in a fluid bed.

Abstract: An apparatus and method for the containment of supplies, experiments or other physical or chemical processes or reactions to be carried out in microgravity environments is provided which features a hollow canister having at least one closure means at either the bottom end or top end of the canister and an endcap with two o-rings to provide a second level of containment. The canister further contains at least one assembly for performing microgravity experiments and is advantageous in that it allows secure stowage of assemblies for conducting microgravity experiments yet also allows easy access to the assemblies in order to activate them when a microgravity environment is achieved. The apparatus also allows for safely and simple visualizing the experiments being conducted in the microgravity environment, and the dual levels of containment protect against hazardous leakage.

Abstract: An atomic layer deposition method includes positioning a semiconductor substrate within an atomic layer deposition chamber. A first precursor gas is flowed to the substrate within the atomic layer deposition chamber effective to form a first monolayer on the substrate. After forming the first monolayer, a reactive intermediate gas is flowed to the substrate within the deposition chamber. The reactive intermediate gas is capable of reaction with an intermediate reaction by-product from the first precursor flowing under conditions of the reactive intermediate gas flowing. After flowing the reactive intermediate gas, a second precursor gas is flowed to the substrate within the deposition chamber effective to form a second monolayer on the first monolayer. Other aspects and implementations are contemplated.

Abstract: A method for growing a single-crystal region of a III-V compound on a surface corresponding to a crystallographic plane of a single-crystal silicon substrate, including the steps of growing by epitaxy on the substrate a single-crystal germanium layer; etching in a portion of the thickness of the germanium layer an opening, the bottom of which corresponds to a single surface inclined with respect to the cristallographic plane or to several surfaces inclined with respect to the cristallographic plane; and growing the single-crystal III-V compound on the bottom of the opening.

Abstract: A seed layer as a laminate of a GaN layer (second seed layer) and an AlN buffer layer (first seed layer) is formed on a sapphire substrate. A front surface thereof is etched in the form of stripes with a stripe width (seed width) of about 5 &mgr;m, a wing width of about 15 &mgr;m and a depth of about 0.5 &mgr;m. As a result, mesa portions each shaped like nearly a rectangle in sectional view are formed. Non-etched portions each having the seed multilayer as its flat top portion are arranged at arrangement intervals of L≈20 &mgr;m. Part of the sapphire substrate is exposed in trough portions of wings. The ratio S/W of the seed width to the wing width is preferably selected to be in a range of from about ⅓ to about ⅕. Then, a semiconductor crystal A is grown to obtain a thickness of not smaller than 50 &mgr;m. The semiconductor crystal is separated from the starting substrate to thereby obtain a high-quality single crystal independent of the starting substrate.

Abstract: Novel diamondoid-based components that may be used in nanoscale construction are disclosed. Such components include rods, brackets, screws, gears, rotors, and impellers. Subassemblies (or subsystems) may comprise one or more diamondoid components. Exemplary subassemblies include atomic force microscope tips, molecular tachometers and signal waveform generators, and self-assembling cellular membrane pores and channels.

Abstract: The invention relates first of all to a method for covering areas of damaged protective coating on containers (1) or the like, in which, according to the invention, protective coating material is stamped on to the zone in which the damaged areas occur. The invention also describes an apparatus for carrying out the method in which a carrier unit (12) is provided for stamping protective coating material on to the damaged area. Means (6, 10, 11) are Apparatus is provided for positioning the carrier unit (12) with respect to the container (1).

Abstract: An applicator apparatus for controlling the uniform (or predetermined non-uniform) application of a treating fluid to a traveling fabric, web or other substrate includes one or more fluid applicators, each having spaced apart housing or body walls interconnected by a body edge preferably of a generally parabolic shape. Each applicator includes a fluid inlet in one body wall and a transversely elongated fluid outlet in the opposite body wall. The body walls define a fluid distribution chamber extending substantially equally and oppositely relative to the fluid inlet, with the chamber being divided by a plate member having preferably generally parabolically shaped peripheral edges substantially corresponding in shape with and spaced inwardly from the body edge.

Abstract: The present invention disclosed the deposition source installed in a chamber, heated by applied electric power to transfer heat to a vapor deposition material received therein and applying a vaporized deposition material generated therein to a substrate to form deposition organic electroluminescent layers onto the substrate, and comprising a vessel consisted of a top plate on which a vapor efflux aperture is formed, a side wall, and a bottom wall; a heating means for supplying heat to the deposition material received in the vessel, the heating means being capable of moving vertically; and a means for moving the heating means (or the bottom wall), the moving means (or the bottom wall) being operated in response to the signal of a sensing means on varied distances between the heating means and the surface of said deposition material.

Abstract: The invention continuously deposits materials used to grow a superconductor layer onto a moving tape. The invention preferably uses a pay-out reel and take-up reel to respectively dispense and spool the tape substrate at a constant rate. The invention preferably uses a series of stages to form the superconductor layer on the tape, and includes at least one reactor or reaction chamber to deposit one or more materials onto the tape substrate that is used to form the superconductor layer, and one or more chambers to deposit buffer layers between the superconductor and the metal tape substrate or between layers of superconductor, as well as for the deposition of coating layers. The invention also preferably uses transition chambers between the stages to isolate each stage from the other stages.

Abstract: Methods and apparatus are provided for monitoring plasma parameters in plasma doping systems. A plasma doping system includes a plasma doping chamber, a platen located in the plasma doping chamber for supporting a workpiece, an anode spaced from the platen in the plasma doping chamber, a process gas source coupled to the plasma doping chamber, a pulse source for applying pulses between the platen and the anode, and a plasma monitor. A plasma containing ions of the process gas is produced in a plasma discharge region between the anode and the platen. The pulses accelerate ions from the plasma into the workpiece. The plasma monitor may include a sensing device which senses a spatial distribution of a plasma parameter, such as plasma density, that is indicative of dose distribution of ions implanted into the workpiece.

Abstract: One embodiment of the invention involves introducing at least two metals into a chamber for forming an alloy layer over a substrate. This is accomplished by a variety of methods. In one embodiment, at least two metals are mixed and introduced into a chamber in which a focused ion beam contacts the two metals to form at least one alloy layer over a substrate. In another embodiment, at least two precursor gas sources are introduced into the chamber in which each precursor gas source contains a metal. The focused ion beam contacts the two precursor gases to form an alloy layer over the substrate. In yet another embodiment, a second metal layer is formed over a first metal layer to form a multi-metal layer. Thereafter, thermal treatment or introducing a focused ion beam to at least a portion of the multi-metal layer is performed to create at least one alloy layer over the substrate.

Abstract: A vaporizer delivery system for use in semiconductor manufacturing processes including a plurality of vertically stacked containers for holding a vaporizable source material. Each of the vertically stacked containers includes a plurality of vented protuberances extending into the interior of the each stacked container thereby providing channels for passage of a carrier gas between adjacent vertically stacked containers.

Abstract: A method and apparatus for a mixed-mode operation of an electrostatic chuck in a semiconductor substrate processing system. The chuck is operated in a voltage mode before and after a processing and is operated in a current mode during the processing to suppress arcing during the processing of a substrate.

Abstract: An article which is being processed with plasma is moved during plasma processing so that the motion of the article comprises at least a first rotational motion, a second rotational motion, and a third rotational motion which occur simultaneously. The apparatus that moves the article comprises a first arm rotatable around a first axis, a second arm rotatably attached to the first arm and rotating the article around a second axis, and a rotational mechanism for inducing a rotational motion of the article in addition to, and simultaneously with, the rotation of the first and second arms.

Abstract: A feeder for a cage, designed to reduce the scattering of food and to provide a cleaner and healthier caged environment, wherein the cage has a wall and an interior space for housing an animal such as a bird, including a cage door. The feeder comprises a feeder mechanism which includes a feeder receptacle attached to an extension structure, wherein the extension structure extends between the receptacle and the wall of said cage. The extension structure is manually engageable and adjustable for positioning the feeder receptacle at a selected location in the interior space of the cage and at a selected location at a cage door for access to the feeder receptacle.

Abstract: The invention relates to a device for receiving animal food, especially pet food, comprising a base element (1) with a bowl-shaped cavity (2) which is used to accommodate the animal food (2) and is defined by the bottom (1a) of the base and at least one side wall (3) of the base; also comprising a bowl-shaped insert element (4) which can be introduced into the base element and which is provided with a bottom (5) which matches in an at least approximate manner the bottom element of the base, in addition to being provided with at least one side wall (6) and an upper opening (2). The base element and the insert element or a part of the wall joined to the insert part have different wall angles. As a result the insert element (4) is clamped when inserted into the base element (1).

Abstract: The present invention relates to an animal carrier which can be secured to a vehicle seat using a Low Anchors and Tethers for Children (LATCH) system. The animal carrier of the present invention includes a crate for securing the animal. A LATCH compatible attachment is coupled to the rear or side of the crate. The LATCH compatible attachment includes a hook which can be secured to a LATCH system anchored in a vehicle. After use, the LATCH compatible attachment can be retracted into the crate.

Abstract: A method is provided for neutralizing the odor of low molecular weight thiols, such as found in skunk spray, in an affected area. An effective amount of a cleaning composition including an oil phase having at least one of a hydrocarbon oil and a hydrocarbon solvent, and a water phase containing water and a base is applied to the affected area. The affected area is shampooed with the cleaning composition thereby neutralizing the offensive odor.

Abstract: An engine thermal management system and method for a vehicle engine that allows for reduced coolant flow and energy consumption by the system, while avoiding excessive critical metal temperatures in the engine. The engine includes a coolant inlet in a head and a coolant outlet in a block. A variable speed pump pushes the coolant into the head inlet. A multi-port valve receives the coolant exiting the engine block and selectively routes it to various system components. The speed of the pump and the valve are electronically controlled by a control module, based upon various engine and vehicle operating conditions.

Abstract: This engine 1 relies on a flywheel having a flywheel axis and an undulating cam surface. A piston with a roller at its base is positioned in a cylinder such that the roller abuts the undulating cam surface at some radial distance from the flywheel axis. Thus, as the piston is pushed downward by combustion pressure in the cylinder, it pushes against the cam surface causing the flywheel to rotate. As the flywheel continues to rotate its undulating surface pushes the piston back into position for a repetition of the cycle. The cam surface is configured to control at least one engine parameter such as compression ratio, duration of intake stroke, duration of exhaust stroke, duration of combustion stroke, duration of power stroke, compression stroke pattern, volumetric efficiency, or power stroke pattern.

Abstract: A valve system has a piston mounted in a cylinder in one of first and second rocker arms and is adapted to be forced by a return spring, and an engagement projection formed in the other one of the first and second rocker arms and is adapted to abut the piston to cause both of the first and second rocker arms to move in conjunction with each other. The return spring is disposed eccentrically with respect to the piston in such a direction as to get away from the engagement projection. Therefore, it is possible to ensure a sufficient stiffness of a power transmitting section of the valve system and a sufficient valve lift.

Abstract: An engine has a first camshaft having a power input portion at one end thereof and a second camshaft interlocked and connected with the first camshaft at one end portion thereof have axes which are parallel with each other and are rotatably supported on a cylinder head and in which a driven gear meshing with a drive gear provided at the other end portion of one of the first and second camshafts is provided on an auxiliary device drive shaft connecting to an auxiliary device mounted on an engine main body including the cylinder head, wherein an axis of the auxiliary device drive shaft is disposed between the first and second camshafts at a position closer to the cylinder head than a straight line connecting the axes of the two camshafts.

Abstract: The present invention relates to a method of controlling the combustion by autoignition of a homogeneous fuel mixture for an internal-combustion engine comprising a combustion chamber in which a stage of slow oxidation of said mixture occurs prior to the combustion of this mixture.

Abstract: To improve startability and reduce the amount of HC emission at start-up with the aid of a construction where vaporized fuel is supplied to the bypass passage that bypasses the main passage.

Abstract: A direct injection engine is coupled to a vacuum brake booster wherein vacuum created from engine pumping is used to supplement driver braking force. The brake booster is coupled through a check valve to the engine intake manifold. A method is disclosed for estimating pressure in the brake booster based on operating conditions. A method is also disclosed for estimating operating parameters based on measured brake booster pressure. Further, a method is disclosed for diagnosing degradation, or monitoring, a brake booster pressure sensor based on operating conditions. In addition, a method is disclosed for diagnosing degradation in other vehicle and engine sensors based on measured brake booster pressure.

Abstract: A fuel delivery rail assembly for supplying fuel to a plurality of fuel injectors in an engine is provided. The assembly comprises an elongate conduit having a longitudinal fuel passage therein, a fuel inlet pipe, and a plurality of sockets. One wall of the conduit opposite to the socket mounting wall includes a flat or arcuate flexible absorbing surface. High-frequency noise suppressing means such as a rib, a cavity or a clamp is applied to the one wall opposite to the absorbing surface. Thus, fuel pressure pulsations and shock waves are reduced by bending of the absorbing surface, and emission of high-frequency noise is eliminated.

Abstract: In a system which applies a torque-based control to a direct injection engine with a turbocharger and is capable of switching between stoichiometric running and lean-burn running in accordance with a driving state, in order to provide a means for obtaining preferred exhaust performance and driveability, a turbo lag index is computed on the basis of supercharged pressure information or air intake pipe pressure information which are obtained directly or indirectly, and then a throttle opening or a fuel injection quantity is corrected on the basis of the above-described turbo lag index to obtain desired torque and exhaust characteristics. As a result, it is possible to prevent a torque variation, a change in torque characteristics, exhaust deterioration, or the like in a transient time, which are generated due to a turbo lag.

Abstract: A fuel pump for use in a fuel injection system includes a housing at least one piston defining a work chamber and drive means which put the piston into a reciprocating motion in the chamber. An inlet conduit and an outlet conduit can be made to communicate with the work chamber. A first valve device is provided between the inlet conduit and the work chamber, and a second valve device is provided between the work chamber and the outlet conduit. The valve element of one valve device has a guide portion, which is received in a guide opening embodied in the valve element of the other valve device, and the circumferential face of the guide portion and/or of the guide opening has at least one recess, by which the contact area between the guide portion and the guide opening is reduced.

Abstract: The fuel injection device has a high-pressure pump that supplies highly pressurized fuel to at least one high-pressure reservoir connected to injectors disposed in cylinders of an engine, wherein the injectors are connected to a common low-pressure reservoir. A pressure holding valve maintains a predetermined low pressure in the low-pressure reservoir. A pressure regulating valve regulates the pressure in the high-pressure reservoir by diverting fuel from the at least one high-pressure reservoir through a diversion connection into a low-pressure region. The diversion connection of the pressure regulating valve is connected to the low-pressure reservoir so that the low-pressure reservoir is filled with fuel.

Abstract: Accordingly, the reader will see that this invention is a fuel injection pump which uses an opposed pair of springs acting in parallel to affect the movement of a piston used to pump fuel. Engine pressure pulses, preferably from an engine cylinder, apply a force on the piston and the springs affect the piston's movement to affect the quantity of fuel injected. The spring rates of the springs and their pre-load, or compression, can be adjusted to affect the fuel injection quantity. Proper selection of these spring rates and compressions allows the user to change the pump's specific output and shape this output as a function of engine torque.

Abstract: A breather device of a vehicle engine is arranged so as to shut off an engine intake system from heat of an engine exhaust system and to make effective use of dead space for location. The breather device includes a breather tank arranged independently between the engine intake system and the engine exhaust system on the rear side of a cylinder assembly of the engine above a crankcase thereof; and a plurality of breather pipes connecting the breather tank to the engine and the engine intake system.

Abstract: A system 10 for increasing electrical spark current to the spark plugs of an electronic ignition system for internal combustion engines includes a capacitor 12 parallel with a switch 14; a primary winding 16; a secondary winding 18 in series with a spark plug 20, the capacitor 12 and switch 14 being in series with the primary winding 16; and a battery 22 having a positive terminal connected to the primary winding 16, and a negative terminal connected to the capacitor 12, switch 14 and spark plug 20. The components cooperating to direct positive and negative electrical currents through the primary winding 16 whereby a peak to peak primary winding current occurs that induces a corresponding secondary winding current through said secondary winding 18.

Abstract: A multi-cylinder internal combustion engine is described in which each cylinder is capable of operating within a predetermined auto-ignition torque/speed range. Selected cylinders are disabled when the average cylinder torque lies below the auto-ignition torque/speed range so as to raise the torque of the remaining power producing cylinders and enable them to continue to operate within the auto-ignition torque/speed range.

Abstract: Arrangement of a burner (2) and a heat exchanger (1), the heat exchanger (1) including a plurality of heat exchange elements (3) interconnected to each other with intermediate gaps, the heat exchanger (1) being arranged with an inlet (4′) and an outlet (5′), the burner (2) being connected at the inlet (4′) to the heat exchanger (1) for providing energy to the heat exchanger (1) by burning a fuel gas, the heat exchanger (1) being arranged, in use, for heat transfer firm an outer surface of the heat exchange elements (3) to process air as a secondary gas, the burner (2) being arranged to burn the fuel gas inside the heat exchanger (1), wherein the heat exchanger (1) is constructed from a high temperature material to allow, in use, heat transfer to the secondary gas by radiation of the heat exchange elements (3), the radiation being in a visible range of the spectrum, the heat exchanger having a surface temperature in the range of 450-1000° C.

Abstract: An aerosol is formed by supplying a material in liquid form to a flow passage and heating the flow passage such that the material volatizes and expands out of an open end of the flow passage. The volatized material combines with ambient air such that volatized material condenses to form the aerosol. An apparatus and method for generating such an aerosol are disclosed wherein the apparatus may include an electrically conductive sleeve at an open end of the flow passage, an electrically conductive flow passage and/or a spacer chamber. The volatilized material may contain a volatilized solute and vehicle such that the resulting aerosol particle sizes of the solute and the vehicle are either different or the same.

Abstract: A method for increasing circulation in a breathing person utilizes a valve system that is interfaced to the person's airway and is configured to decrease or prevent respiratory gas flow to the person's lungs during at least a portion of an inhalation event. The person is permitted to inhale and exhale through the valve system. During inhalation, the valve system functions to produce a vacuum within the thorax to increase blood flow back to the right heart of the person, thereby increasing cardiac output and blood circulation.

Abstract: The invention concerns a device for dispensing an active principle in powder form, comprising a box (2-104, 4-404); an adapter (6) for inhaling or blowing the active principle; a reservoir (10) for storing the active principle in powder form; a metering chamber (16, 116) enabling to draw a specific dose of the active principle, and integral with a part (12, 200) mobile between a drawing position wherein it communicates with the storage reservoir (10), and a position ready for use; means for driving (22, 24; 124) the metering chamber between its various positions; confinement means (32, 32a, 32b; 102b, 102c) for closing at least part of the metering chamber, in its ready position.

Abstract: Apparatus for delivery of humidified gases therapy includes a humidifier. A recorder records. An output interface allows for outputting of the recorded data. The recorder may also record data indicative of patient compliance with the humidified gases therapy. The apparatus may determine patient compliance from sensed delivered flow.

Abstract: The invention concerns a patient's ventilation with breathing mixture The installation comprises a ventilating assembly (10) for delivering said breathing mixture provided with a sensor for measuring the pressure (26) of the delivered mixture and a sensor for measuring the flow rate (28) of the delivered mixture; an inhalation conduit (12); and a device (30) for detecting accidental disconnection of the ventilation circuit comprising processing means (32, 34) for calculating, for each ventilating cycle, an apparent coefficient of the patient's compliance based on the measurements carried out by said pressure and flow rate sensors, using a predetermined formula; means (32, 34) for determining the sign of said compliance coefficient; means (32, 34) for comparing said compliance coefficient to a predetermined positive value; and means (40) for triggering a warning (42, 44) if the compliance coefficient is negative or if the compliance coefficient is higher than said predetermined value.

Abstract: The application relates to an anti-snoring device comprising a compressor and a nasal air cannula, the air compressed by the compressor being blown through the nasal air cannula into the nose of a sleeping person. The invention also relates to an optimized nasal air cannula for the anti-snoring device.

Abstract: Improved methodology and apparatus for the clinical study and treatment of sleep apnea which incorporates one or more of the following features: (1) application of mono-level, alternating high and low level, or variable positive airway pressure generally within the airway of the patient with the mono-level, high and low level, or variable airway pressure generally being coordinated with and/or responsive to the spontaneous respiration of the patient, (2) usage of adjustably programmable pressure ramp circuitry capable of producing multiple pressure ramp cycles of predetermined duration and pattern whereby the ramp cycles may be customized to accommodate the specific needs of an individual sleep apnea patient so as to ease the patient's transition from wakefulness to sleep, (3) remote control or patient-sensed operation of the apparatus, (4) employment of safety circuitry, reset circuitry and minimum system leak assurance circuitry, controls and methods, and (5) utilization of clinical control circuitry whereb

Abstract: A ventilation sound detection system includes an audible display that emits a series of sounds based upon information provided by a ventilator. In particular, there are two different sound patterns emitted by the system. One sound represents inspiration and the other sound represents expiration. The inspiration sound is enunciated when monitored breathing pressure crosses a threshold level, thereby communicating to an anesthesiologist/clinician that a significant pressure has been developed in the breathing circuit (e.g., a proper inspiration breath has been taken by the patient). The exhalation sound is enunciated when the rising edge of a valid CO2 breath has been returned to the breathing circuit (e.g., a proper exhalation breath has been made). Accordingly, the system provides the anesthesiologist/clinician with a new way of verifying that the patient is being properly ventilated. Therefore, ventilation changes or problems can be identified quickly and effectively.

Abstract: Systems, methods and devices for performing pulmonary procedures, and in particular treating lung disease. A flow control element includes a valve that prevents airflow in the inhalation direction but permits airflow in the exhalation direction. The flow control element is guided to and positioned at the site by a bronchoscope that is introduced into the patient's trachea and used to view the lungs during delivery of the flow control element. The valve may include one, two or more valve elements, and it may be collapsible for easier delivery. A source of vacuum or suction may be used to increase the amount of fluid withdrawn from the lung tissue. A device for measuring hollow structures, such as bronchioles, and a device for removing a previously-placed flow control element are disclosed as well.