Abstract: A wall-mounted collapsible table is disclosed consisting of a resting surface (1) hinged on one side at (6) to a post (5) for attachment to a wall, and of at least a support member (4), hinged respectively to the resting surface at (3) and to the post at (7). The collapsible table has within its lower surface at least one cavity (2), adapted to house the support member (4), and members (8) adapted to lock the table when it is an open position, the locking members (8) consisting of a pawl (10) and ratchet (12) snap system.

Abstract: A table for offices and the like includes an elongate center beam and two center posts having lower ends abuttingly supported on a floor surface and upper ends connected with opposite ends of the center beam. Two outrigger beams are positioned on opposite sides of the center beam in a generally mutually perpendicular relationship therewith, and have inner ends connected with one of the center posts. Two outrigger posts are positioned on opposite sides of the center beam, and have lower ends thereof abutting the floor surface and upper ends connected with the outside ends of the outrigger beams to stabilize the table. Two elongate worksurfaces are positioned along opposite sides of the center beam and have a length generally commensurate with the same.

Abstract: An expandable table of the type in which a number of table top sections are caused to move outwardly and expand on rotation of the table top. The table top sections are coupled to a guide plate, which defines the positions between which the sections move. The guide plate is mounted for rotation and engages low friction rub blocks mounted along the inner perimeter of the outer edge of the table. The table top sections themselves are mounted on guides, which are at least partially received in the guide plate. Once the table top sections have been moved into the expanded configuration by rotation of the table top, table leaves are inserted in the spaces between adjacent table top sections to form a larger contiguous table surface.

Abstract: A cover for a treatment table includes a top sheet, and a skirt extending from the plane of the top sheet such that the cover defines an opening for accommodating a cantilevered protrusion projecting from the treatment table. The protrusion may be a head support projecting from the treatment table. The cover may include an access flap which is permanently attached to the skirt along an attached edge and removably attachable to the skirt along free ends of the skirt and access flap, the cover hiding the underneath of the treatment table around its entire perimeter when the access flap is attached. The cover may include access means for accessing under the cover and height-adjustment means for adjusting the height of the skirt. The cover may be made from one or more elastic materials.

Abstract: There is provided a protection method and protection system for valuables. An internal enclosure for enclosing the valuables, an external enclosure for enclosing the internal enclosure, a misuse protection device for the valuables, and a triggering device for triggering the misuse protection device in the event of an unauthorized manipulation of the external enclosure are provided. The external enclosure is closable to form a seal. A pressure chamber, which is impinged by an initial pressure, is produced in the external enclosure. Means are provided to generate a setpoint pressure, which deviates from the ambient pressure, in the pressure chamber when the external enclosure is closed to form a seal. A pressure sensor is used for detecting the pressure in the pressure chamber. The pressure sensor controls initialization means, which initialize the triggering device.

Abstract: A method and an apparatus for continuous real time heating value/coal flow balancing of coal from a coal feeder to a burner. The apparatus includes a dual-energy Gamma Attenuation (DGA)/multi-energy Gamma Attenuation (MGA) device for measuring coal quality at a specific location between the coal silo and the mill in a coal fired plant in order to control the individual burner stoichiometries according to the measured coal quality. By strategically placing the DGA/MGA device, continuous accurate real-time coal quality information is accomplished for making individual adjustments in order to improve stoichiometry to optimize performance of the system.

Abstract: A municipal or like refuse is crushing, mixing with crushed limestone, dry up in two stages—by hot air and by part of solid products of pyrolysis which other part goes on washing out and filtration. Pyrolysis is carried out in two stages—due to heat of the specified part of solid products of pyrolysis and simultaneous neutralization of allocated hydrogen chloride by limestone with reception of calcium chloride, and then due to heat of final chimney gases of the combustion chamber, where in three stages the washed solid products of pyrolysis preliminary drained by a part of combustion chamber slag are burnt together with liquid and gaseous products of pyrolysis. Gas allocated at pyrolysis condense and divide on organic, which is liquid fuel and water phases. Air after a dryer moves to blowing away of light organic substances from the specified water phase, is heated up due to heat of slag and moves in combustion chamber.

Abstract: The present invention relates to a cyclonic plasma pyrolysis/vitrification system pyrolyzing and vitrifying waste materials into exhaust gas and slag using a plasma torch. The plasma torch circulates the exhaust gas in a main reactor with a maximum circulating power by strong plasma jet, and makes flyashes contained in the circulating exhaust gas to be melted after being adsorbed at the inner walls or in the melted materials of waste at the bottom of the main reactor by a centrifugal force. Accordingly, discharge of flyashes containing toxic materials to the outside is prevented, and pyrolysis and gasification of the waste materials are induced by circulating the exhaust gas rapidly.

Abstract: Power/process boiler modifications to use direct Oxygen input to burn the Carbon based fuel in a Nitrogen deficient atmosphere created by flue gas recirculation. This will result in a substantial reduction in fuel consumption and less Carbon Dioxide plus a near elimination of NOx in the flue exhaust released to the atmosphere. Both substances contribute to the Greenhouse effect and Global Warming and widespread use of his concept would help to reduce Global Warming and also reduce the usage and depletion of Carbon based fuels.

Abstract: A method of converting animal litter biomass into useful energy includes the steps of both combusting and pyrolising the biomass, of mixing the resultant combustible gas from the pyrolysis step with the gases from the combustion step, of igniting the mixture of gases ad and feeding the hot mixture of gases to a thermal recuperator; and apparatus therefor.

Abstract: A device for producing thread-stitched book blocks from a stack of signatures are arranged flat one on top of the other and are stitched together by stitched seams formed at right angles to the folds by a binding thread passed repeatedly in double strands through the folds of the signatures. The device has a first stitching needle that inserts the binding thread and a second stitching needle that draws the binding thread through the fold from the inside. A punch needle, which passes through the fold from the inside edge to form a punched hole, is arranged opposite the first and second stitching needles, each of which forms a stitched seam. The section of the needle that is used to pierce a fold has a polygonal cross-sectional shape.

Abstract: An adjustable punching device includes a base having a first through hole, a second through hole, a third through hole and a fourth through hole with predetermined separation, a first clamping section and a second clamping section adjacent to the third through hole and the fourth through hole. A fixed knife rack is arranged on each side of the base. The knife for each knife rack is corresponding to the first through hole and the second through hole. A lateral panel is arranged on outer side of the fixed knife rack. A pressing plate is pivotally connected between the lateral panels. A movable knife stage is arranged between two fixed knife racks. The movable knife stage is limited between the first clamping sections and on the second clamping sections. The movable knife rack is corresponding to the third through hole and the fourth through hole. After the hole separation has been adjusted, the pressing plate is pressed to punch holes with fixed separation.

Abstract: A watercraft transport lock includes a walled structure that can be filled and emptied of water received from two separate bodies of water for the purpose of transporting a boat or other watercraft between the two bodies of water. The system prevents the water of one body from mixing with the water of the other body. This is accomplished by removing the water of the first body of water from within the structure prior to filling the structure with the water from the other body. A boat support may be used to support the boat during the emptying and filling processes.

Abstract: A vessel includes an heavy loaded catamaran, one or several movable buoyant roll-on/roll-off platform(s) (3); a moving element is provided for draft variation in heavy deep seas so that the platform(s) (3) may be raised or lowered between the hulls thereby selectively changing the flotation of the vessel. In the upper position, the vessel is a deep-sea catamaran, in an intermediate position the platform(s) is buoyant and a canal is formed between platform bottom and catamaran keels, in the lower position, platform bottom and catamaran are even-keel converting the catamaran in a shallow water craft, in the lowest position, the catamaran is raised above water for docking.

Abstract: A light system that is pivotally attachable to a boat has a body member that floats on the surface of the water and has at least one light received within an opening thereat, the light shining down into the water toward the water body's floor in order to illuminate the contents thereat. A pair of poles, which may be telescoping, are attached to the body member, alone or with a connector, with the opposite ends of the poles pivotally attached to the boat, either by passing a bolt through the poles and the boat's sides, or to brackets attached to the boat, or by having these ends of the poles curled and clipped onto the boat. A wire passes through the poles and is electrically connected to the lights with the ends of the wire attached to the boat's battery via battery clips.

Abstract: A dial-type manipulator is used to manipulate devices mounted on an automobile, such as an air-conditioner, an audio system or a navigation system. The dial-type manipulator includes a first gear formed on an outer periphery of a dial member and a second gear engaging with the first gear. A detector such as a rotary resistor is driven by the second gear to detect a rotational position of the dial member. A position holder for holding the first gear at a predetermined reference position is provided in the manipulator. A confirmation mark such as a groove or a rib mark is formed on the front surface of the second gear. The confirmation mark is visible from a front side of the manipulator at a position along an outer periphery of a dial member when the dial member is rotated and held at the reference position, if the first gear engages with the second gear at a predetermined correct position. If the gears are not correctly engaged, the confirmation mark is located at other positions.

Abstract: A method is described for making an especially not-(111)-oriented low-stress large-volume crystal having a glide plane with reduced stress birefringence and more uniform refractive index. The method includes growing and tempering the crystal while heating and/or cooling to form a temperature gradient in order to relax stresses arising along the glide plane. During the tempering the heating and/or cooling occurs by heat transfer in a heat transfer direction and the heat transfer direction or temperature gradient is oriented at an angle of from 50° to 900° to the glide plane. Crystals with a uniform refractive index with variations of less than 0.025×10?6 (RMS value) are produced by the method.

Abstract: A process for depositing a silicon-based material on a substrate uses the technology of plasma-enhanced atomic layer deposition. The process is carried out over several cycles, wherein each cycle includes: exposing the substrate to a first precursor, which is an organometallic silicon precursor; and applying a plasma of at least a second precursor, different from the first precursor. Semiconductor products such as 3D capacitors, vertical transistor gate spacers, and conformal transistor stressors are made from the process.

Abstract: Embodiments of an apparatus and methods for forming a tantalum containing film using plasma enhanced atomic layer deposition are generally described herein. Other embodiments may be described and claimed.

Abstract: Provided is a novel method for nucleating the growth of a diamond film. The method comprises providing a substrate having a diamondoid chemically attached to it, which serves as a superior nucleation site, and then facilitating the growth of the diamond film.

Abstract: A reactor for separating a gas containing silicon is provided with at least one electrically heatable deposition element of silicon to save costs, which element has a doping with at least one impurity to improve its electrical conductivity, the doping having a concentration in an initial state, such that the deposition element with the silicon deposited thereon in the final state is suitable for the manufacture of silicon melt for the production of polycrystalline silicon blocks or single silicon crystals for photovoltaics. A method for manufacturing silicon with the reactor according to the invention and the use of the manufactured silicon in photovoltaics are also described.

Abstract: An applicator including a liquid discharge head for discharging a treatment liquid in droplet form, and a discharge control device for controlling the discharge of droplets from the liquid discharge head. The discharge control device divides a surface of a member into a plurality of regions according to the shape of the surface, and controls the application quantity for each region.

Abstract: The object of the present invention is to assuredly merge adjacent coating liquid lines when a coating liquid is applied on a surface of a substrate by a so-called scan coating. The coating is performed while the wafer W is oriented to an orientation such that the scanning direction of the coating nozzle liquid 5 crosses at the dicing lines D formed on the wafer W. After completion of the application, the wafer W is returned to the original orientation and thereafter the wafer W is unloaded from a coating film forming apparatus. The coating film forming apparatus stores a plurality of recipes defining coating conditions for each kind of wafer W. The coating conditions defined by the recipes include the orientation of the wafer W. The orientation of the wafer W is automatically set based on the selected recipe.

Abstract: A device for detection of a semiconductor process liquid is provided. The device includes a light source adapted to generate a light beam and a digital optical sensor to detect the light beam. A nozzle is adapted to support the semiconductor process liquid and transmit the light beam. The nozzle and the source are arranged to refract the beam in a first direction while the beam passes through a gas disposed in the nozzle. The nozzle and source are arranged to refract the beam in a second direction while the beam passes through the liquid.

Abstract: A process to deposit a thin film by chemical vapor deposition includes evacuating a chamber of gases; exposing a device to a gaseous first reactant, wherein the first reactant deposits on the device to form the thin film having a plurality of monolayers in thickness; evacuating the chamber of gases; exposing the device, coated with the first reactant, to a gaseous second reactant under a plasma treatment, wherein the thin film is treated by the first reactant; and repeating the previous steps.

Abstract: The present invention relates to a processing apparatus for performing a film-deposition process or the like for an object to be processed (such as a semiconductor wafer) by means of a source gas and a reactive gas. The processing apparatus includes: a processing vessel (22) that contains therein an object to be processed (W); a source gas supply system (50) that selectively supplies a source gas into the processing vessel; a reactive gas supply system (52) that selectively supplies a reactive gas into the processing vessel; and a vacuum evacuating system (36) having vacuum pumps (44, 46), the system exhausting an atmosphere in the processing vessel to form a vacuum.

Abstract: A plasma processing apparatus can apply a high-quality process to an object to be processed by removing impurities from a gas-introducing part of a process chamber. The gas-introducing part connected to the process chamber so as to introduce a reactant gas into the process chamber. A first vacuum pump is connected to the process chamber so as to evacuate gas from the process chamber so that the process chamber is maintained at a negative pressure. A gas-evacuating arrangement is connected to the gas-introducing part so as to exclusively evacuate the reactant gas from the gas-introducing part. The gas-evacuating arrangement includes a second vacuum pump directly connected to the gas introducing part or a bypass passage connecting the gas-introducing par to the first vacuum pump by bypassing the process chamber.

Abstract: Disclosed is a plasma surface processing system for processing a surface of an object to be processed (110) by forming plasma in a reaction chamber (100), the system including a supply device (230) for plasma processing solution (201) which supplies a processing material which forms plasma in a chamber (100) into the reaction chamber as a liquid drop form.

Abstract: A method and process for the production of bulk polysilicon by chemical vapor deposition (CVD) where conventional silicon “slim rods” commonly used in Siemens-type reactors are replaced with shaped silicon filaments of similar electrical properties but larger surface areas, such as silicon tubes, ribbons, and other shaped cross sections. Silicon containing gases, such as chlorosilane or silane, are decomposed and form a silicon deposit on the hot surfaces of the filaments The larger starting surface areas of these filaments ensures a higher production rate without changing the reactor size, and without increasing the number and length of the filaments. Existing reactors need only the adaptation or replacement of filament supports to use the new filaments. The filaments are grown from silicon melt by Edge-defined, Film-fed Growth (EFG) method. This also enables the doping of the filaments and simplification of power supplies for new reactors.

Abstract: An integrated system for baking and chilling wafers includes a heater for heating a wafer to an elevated temperature, a chiller for cooling the wafer, and a shuttle operatively connected to the heater and the chiller for transferring the wafer between the heater and the chiller. The chiller further includes a low thermal mass wafer support for providing support to a bottom surface of a wafer and a chill plate coupled to the low thermal mass wafer support for cooling the wafer. The low thermal mass wafer support has a higher thermal conductivity in the plane parallel to the bottom surface of the wafer than in the direction perpendicular to the bottom surface of the wafer. The low thermal mass wafer support can further include a plurality of proximity pins for supporting the wafer.

Abstract: The present invention provides an evaporation device for which maintenance is readily conducted, and further, provides an electrode cover which can prevent an evaporation material from being adhered to electrodes. Moreover, the present invention provides an evaporation device including an evaporation chamber; a holding portion for holding an object to be treated; an evaporation source; an electrode; an electrode cover; and a power supply, in which the evaporation chamber includes the holding portion in an upper portion, and includes the evaporation source, the electrode, and the electrode cover in a lower portion; the electrode cover covers at least a part of an exposed surface of the electrode; the electrode and the power supply are electrically connected.

Abstract: The invention relates to a cleanroom-capable coating system for PVD or CVD processes having at least one vacuum coating chamber, in which vitreous, glass-ceramic and/or ceramic layers deposited. A first opening of the vacuum coating chamber is connected via a separately evacuable vacuum airlock chamber (load lock) to a cleanroom, the vacuum airlock chamber comprising transport means for delivering substrates into the vacuum coating chamber and for taking substrates out of the vacuum coating chamber, and a second opening of the vacuum coating chamber connects the vacuum coating chamber to a grayroom area separated from the cleanroom.

Abstract: An object is to provide a milk foamer capable of smoothly and securely managing hygiene of a suction tube which sucks milk from a milk storage section. The milk foamer sucks the milk from a milk pack via the suction tube and mixes the milk and air with the milker to produce milk foam. The milk foamer includes a control unit which controls the production of the milk foam, and a cleaning unit which executes a cleaning operation of a route extending from the suction tube to the milker. The control unit prohibits the production of the milk foam and instructs the cleaning unit to execute the cleaning operation, in a case where a predetermined time elapses from the previous production of the milk foam.

Abstract: An apparatus for substantially minimizing an entrance of undesirable insects into an interior portion of one of a home and office building through an opening formed therein. Such apparatus includes an elongated member, having a predetermined length and formed from a first predetermined material, disposed above an opening into an interior portion of such one of such home and office building through such opening formed therein. There is at least one reflective member, having a predetermined shape and formed from a second predetermined material, for deterring such insects from entering such interior portion of such one of such home and office building through such opening formed therein and a mechanism engageable with each of the elongated member and such at least one reflective member for hanging the at least one reflective member on such elongated member.

Abstract: The present disclosure presents methods, systems, and assemblies for the near real-time remote monitoring of aquatic environments, particularly domestic aquatic environments such as aquariums and backyard ponds, using remotely located computer communication systems and control assemblies and software connected by a standard Internet connection and capable of bilateral transfer and interpretation of status files. Also presented herein are business processes of remotely managing, monitoring, and/or controlling the environmental parameters of aquatic environments using electronic control systems installed in the aquarium in combination with a remotely located control system, wherein the two systems are in communication through an Internet connection.

Abstract: A livestock transportation system and cover for protecting transported livestock. The system includes a vehicle and a cover. The vehicle receives an animal and includes a side wall and a plurality of ventilation apertures disposed in an array through the side wall. The cover includes an elongated planar member disposed over and substantially covering the plurality of ventilation apertures; a first end portion; a second end portion; a first coupling member coupled to the first end portion and coupleable to the vehicle; and a second coupling member coupled to the second end portion and coupleable to the vehicle. The elongated planar member is a flexible fabric. The first coupling member includes a ratcheting cinch device configured to tighten a coupling between the first end portion and the vehicle. The first coupling member includes a hook coupleable to the vehicle. There is a rod member coupled to the elongated member.

Abstract: A foldable and portable frame is disclosed. The foldable and portable frame comprises twelve posts and eight flexible joints or linkages. The foldable and portable frame can be easily erected to be a stable substantially rectangular structure, and folded to a collapsed state to be portable. A foldable and portable frame with coverings is also disclosed. The foldable and portable frame with coverings can be erected and folded in a same fashion as the erecting and folding of the foldable and portable frame.

Abstract: This invention relates to a kind of non-powered environment-protective sightseeing carriage for pets, which comprises compartment and wheels. The compartment includes floor, side boards and top cover. Vessels for food and water are provided in the compartment. There is a hole on the floor with a dropping tray under it. At least one side of side boards (12) is transparent. This invention satisfies the need to take pets out for looking around with enjoyment. In addition, it has advantages that pets may relieve themselves inside the carriage so that have no effect on public sanitation and on other's health while pets have a comfortable space for their activities.

Abstract: The present invention is a pet container that has a base having at least two legs. The container has a tip angle of from about 10° to about 50°.

Abstract: A portable container for faeces having a body provided with a first chamber and a second chamber. The first chamber is provided with a first closure which in a first position allows access to the first chamber and in a second position seals the first chamber. The second chamber is provided with an opening which allows access to the second chamber.

Abstract: An object of the present invention is to provide a combustion apparatus capable of certainly detecting a shortage of an amount of air relative to that of fuel gas. A combustion apparatus 1 is adapted to perform a primary combustion of air-fuel mixture in an oxygen-deficient condition composed of mixture of primary air and fuel gas and further perform a secondary combustion upon supply of secondary air 67, including a first ion current measuring element 65 positioned at a site where a flame of the primary combustion is to take place and a second ion current measuring element 66 adjacent to a secondary air supply opening 20, 21, 63, or 64 for supplying the secondary air 67, so as to control at least one selected from a group consisting of (a) a ratio of an amount of the primary air to that of the secondary air, (b) a total amount of the primary and the secondary air, and (c) an amount of the fuel gas based on measured values by the first and the second ion current measuring elements 65 and 66.

Abstract: This invention relates generally to hot water tank but more particularly to a hot water tank having a removable top lid. The hot water tank comprises a sleeve lining the tank; at least one compartment housed within said sleeve, the compartment having walls for containing water; and a top removable lid; and wherein said sleeve and said compartment are removable from the tank upon removal of said top lid. The sleeve can be sealed or not and has as its particularity that it can be extremely versatile and can have changeable water containers with heating means or not. The sleeve can be adapted to any existing or future water container of any size or model, with or without heating means, and has the possibility of having one or many individual water compartments being exchangeable upon rusting/piercing/breakage, instead of changing the complete tank. The sleeve can also hold the entire contents of the hot water container, if it pierces.

Abstract: A cogeneration system that is operated in system connection is disconnected from the system and operated independently at a power failure of the system. A power generator 1 driven by an engine E is connected to a system 9. A water-cooling device 13 recovers exhaust heat of the engine E. When an operating switch 20 is switched, to its independent operation mode for an independent operation apart from the system 9, the upper limit of the target rotation speed Ntgt of an electronic governor 16 is increased over that at system connection operation, thereby the engine speed can be increased, and the maximum output point of the power generator 1 is increased for operation.

Abstract: An engine includes a housing having a combustion chamber. The engine may also include a fuel injector for supplying fuel directly or indirectly to the combustion chamber. Additionally, the engine may include an engine-lubricant-supply system operable to discharge engine lubricant onto the fuel injector.

Abstract: In this air induction module, the induction pipe has two separate induction pipe bodies (1, 2) with induction pipe sections that, together, form the induction pipes. The second induction pipe body (2), which can be attached to the cylinder head of the combustion engine, contains, in its induction pipe sections, a pulse charging valve (3) with an associated actuator. In addition to the pulse charging valves, the control electronics thereof can be integrated in the air induction module.

Abstract: A method of operating an engine is provided. The engine may have a housing with one or more combustion chambers, including a first combustion chamber. The engine may also have a piston in fluid communication with the first combustion chamber. The method may include combusting fuel in the first combustion chamber, thereby producing combustion gas that expands and drives the piston during a first combustion-gas-expansion stroke of the piston. The method may also include compressing at least part of the combustion gas in the first combustion chamber during a compression stroke of the piston. Additionally, the method may include, between commencement of the first combustion-gas-expansion stroke and completion of the compression stroke, releasing part of the combustion gas from the first combustion chamber.

Abstract: A camshaft adjuster including an electric servo motor (21) that is mounted in a first housing (14) and an electronics module (37), which supplies the servo motor (21) with electricity is provided. A second housing (26), which is separate from the first housing (14), is allocated to the electronics module and is attached by its exterior to the first housing (14). A wall (29) of the second housing (26) separates the servo motor (21) and the electronics module (37) to be mounted separately. A power supply and a logic element are integrated into the electronics module, allowing the camshaft adjuster to be operated as an autonomous unit.

Abstract: A camshaft phaser system includes an oil control spool valve having two opposing springs to center the spool at a rest position to lock the phaser rotor by blocking supply/vent to both the C1 and C2 chambers, obviating a conventional locking pin mechanism. A double-acting solenoid actuator moves the spool to first and second positions, supplying or venting C1 and C2, respectively. The rotor may be locked hydraulically at any position between full advance and full retard. A system for monitoring the rotational positions of the crankshaft and camshaft includes magnets disposed on opposite sides of the shaft axis. A magnetic sensing element senses the rotational direction of the magnetic field for each position of the shaft. An engine control module uses the position signal and an algorithm to lock the rotor at a desired position.

Abstract: A valve timing control apparatus is adapted to an exhaust valve side of an internal combustion engine. A vane member is arranged to rotate with a camshaft relative to a timing sprocket member. The vane member is rotated at low speed engine operation dominantly by a camshaft-torque actuation mechanism and at high speed engine operation dominantly by a hydraulic actuation mechanism. The camshaft-torque actuation mechanism is actuated by an alternating torque of the camshaft, whereas the hydraulic actuation mechanism is actuated by a fluid pump. The camshaft-torque actuation mechanism and hydraulic actuation mechanism are controlled independently of each other.

Abstract: A phaser for controlling the timing between a camshaft and a timing gear having a rotor with at least one vane and a stator with at least one recess the phaser allowing limited rotational movement of the rotor with respect to the stator. The vane divides the recess into first and second pockets, wherein the introduction of a fluid into the first pocket causes the rotor to move in a first rotational direction relative to the stator, and in that the introduction of a fluid in the second pocket causes the rotor to move in the opposite rotational direction. A control ring is provided for selectively opening and closing a fluid connection between the pockets to allow fluid to flow between the pockets using the pressure difference of the fluid in each of the pockets to transport the fluid from the one to the other pocket.