Abstract: A shower device is provided, including: a pipe assembly, including an inlet pipe, an outer pipe and an inner pipe disposed in the outer pipe, the outer pipe including a first end portion in communication with the inlet pipe and a second end portion; a water separator, including a first port, a second port and a control valve, the first port including a first assembling portion connected with the second end portion and a second assembling portion, an inlet end portion of the inner pipe being connected with the second assembling portion, the second port including an outlet; and a shower flower, being connected with the outer pipe and in communication with the inner pipe; wherein the control valve is configured to conduct communication of the outer pipe and the inner pipe or to conduct communication of the outer pipe and the outlet.

Abstract: A directional flow control device includes a housing extending along a longitudinal axis between an inlet end and a discharge end. The housing holds stator magnets. The directional flow control device includes a flow deflector received in the housing. The flow deflector is rotatable in the housing about a rotation axis parallel to the longitudinal axis. The flow deflector has a flow channel therethrough. The flow channel has an intake bore at a front end of the flow deflector and a discharge bore at a rear end of the flow deflector. The intake bore is coaxial with the rotation axis. The discharge bore is offset from the rotation axis. The flow deflector has rotor magnets aligned with and facing the stator magnets. The stator magnets are energized to cause rotation of the flow deflector relative to the housing.

Abstract: A compact modular mobile aggregate processing system configured with no stand-alone inter-plant conveyors for decreasing the footprint of the system and an infinitely adjustable flow diverter(s) for increasing the control of and variation of output characteristics of the system; the system further including specialized folding conveyors.

Abstract: A variable inlet device for a vehicle includes a first pipe and a second pipe arranged in parallel to each other, and a variable injection pipe configured to allow an exit thereof to be selectively connected to an entrance of the first pipe or an entrance of the second pipe by a rotation movement and a back and forth movement.

Abstract: A filling system on a motor vehicle, having at least two storage tanks for operating materials, comprising a tank closure cover which closes an opening in a body of the motor vehicle and is movable from a first position that closes the opening into a second position that releases the opening, wherein at least two filling openings of the storage tanks are arranged below the tank closure cover, a filler trough that forms an enclosure of the filling opening, wherein the filler trough closes the opening in the body and is fixed to the body; and at least one filler head, wherein the filling openings are formed as a part of the filler head, the filler head defining at least two mouth-hole necks which are combined to form a common component and are integrally connected to each other, each mouth-hole neck forming a filling opening for another storage tank.

Abstract: An apparatus for diverting a fluid flow path automatically diverts a fluid flow path in accordance with inclining of a main body, and includes two or more selectable fluid flow paths through which an external air stream is drawn, a fixed fluid flow path to be selectively connected to one of the selectable fluid flow paths, a path selecting unit to connect the fixed fluid flow path to one of the selectable fluid flow paths, and a driving member to provide a driving force for path selecting of the path selecting unit. If mounted in an external apparatus, the driving member causes the path selecting unit to move and connect to the fixed fluid flow path in accordance with inclining of the external apparatus.

Abstract: Pressure relief/drainage valve for a concrete pumper having a valve body with an axially extending passageway through which concrete flowing in a pumping line passes, an outlet port in a side wall of the passageway, and a valve member which prevents concrete from passing through the port when the valve is a closed position and permits concrete to discharge through the outlet port when the valve is in an open position.

Abstract: A rotary fluid distribution apparatus has a first head with a wall extending around an interior volume thereof, and having a first orifice and a second orifice formed through the wall so as to open to the interior volume, a rotor extending through the interior volume, a first separation plate positioned within the first head and having an opening formed therethrough, a second separation plate positioned within the first head in spaced relation to the first separation plate and having a first opening and a second opening formed therein, and a tunneling channel extending between the first and second separation plates so as to communicate with the opening of the first separation plate and with the first opening of the second separation plate. The tunneling channel is movable with a rotation of the rotor.

Abstract: A flow path switching valve is disclosed that can be operated remotely simply by turning flow on and off. The switching valve may be incorporated into the body of a high pressure nozzle. In one embodiment a mid portion of the valve body has at least one passage therein leading from a central axial bore to first and second external ports. A poppet member received in the central axial bore directs fluid flow in a first position to the first external ports. The poppet member, when in a second position, closes the central axial bore through the outlet end of the valve body and permits fluid flow through the second set of external ports. Selection of the different flow paths is made by simply reducing flow through the valve below a predetermined fluid flow threshold and then increasing the flow rate above the threshold.

Abstract: A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.

Abstract: A diverter valve which is operable to divert a water supply to a spray includes an undiverted through passage for another water supply, such as filtered water.

Abstract: A concrete pump system/method configured to provide substantially constant flow of concrete or cement material is disclosed. The system integrates a trapezoidal cutting ring and spectacle plate in conjunction with lofted transitional interfaces to the hydraulic pump cylinder rams and output ejection port to ensure that pressurized discharge concrete material is not allowed to be relaxed nor backflow into the material sourcing hopper. The trapezoidal cutting ring is configured to completely seal off the trapezoidal spectacle ports as it smoothly transitions between the hydraulic pump input ports during cycle changes thus generating a more uniform output flow of concrete while eliminating hopper backflow and hydraulic fluid shock. A control system is configured to coordinate operation of the hydraulic pump cylinder rams and cutting ring to ensure that output ejection port pressure and material flow is maintained at a relatively constant level throughout all portions of the pumping cycle.

Abstract: The present invention provides an exhaust machine which includes a first exhaust tube, a second exhaust tube, a first closed box, a second closed box, a pipe and a motor. The first exhaust tube is connected to the first closed box and the second exhaust tube is connected to the second closed box. The pipe penetrates the first closed box and the second closed box and connects to an exhaust gas source. The pipe includes a first inner opening and a second inner opening. The motor connects to the pipe and drives the pipe to make the exhaust gas pass into the first closed box through the first inner opening or into the second closed box through the second inner opening.

Abstract: A body includes two separate openings on a first side of the body that correspond to separate passages that converge to a common passage. An opening on a second side of the body couples to the common passage. A bore in the body is concentric with the common passage. A diverter has at least a part of the diverter in both the bore and the common passage. A tubular portion of the diverter has an open end in fluid communication with the common passage. One or more seals are positioned circumferentially around the part of the diverter located in the bore. The diverter is selectively rotated with the drive mechanism during use to align a diverter wall opening with a selected separate passage such that an object moving from the common passage through the tubular portion of the diverter is directed into the selected separate passage during use.

Abstract: A quick-install three-way pipe connector including a valve body, a lower pipe assembly and a switching element. The valve body has a fitting opening, a water inlet and a lower pipe orifice. The lower pipe assembly includes an on-flow pipe and a counter-flow pipe. The upper ends of the on-flow pipe and the counter-flow pipe pass through the lower pipe orifice and are fixed inside the valve body by means of an upper connector. The switching element is fixed on the lower end of the on-flow pipe and the counter-flow pipe and is provided with a lower water outlet. The fitting opening is provided with an upper cover which seals a water inlet cavity. The complete water path of the entire device includes water in-flow from a support arm joint to flow sequentially through the water inlet, the on-flow pipe, the switching element, the counter-flow pipe and the water outlet.

Abstract: A flow path switching valve is disclosed that can be operated remotely simply by turning flow on and off. A mid portion of the body has at least one passage therein leading from a central axial bore to one or more external ports each having a tractor nozzle. The valve outlet connects the axial bore to a cleaning nozzle. A poppet member is received in the central axial bore. In a first position, the poppet member directs fluid flow through the outlet to the cleaning nozzle connected to the outlet. The poppet member, when in a second position, closes the central axial bore through the outlet end of the valve body and permits fluid flow through the tractor nozzles. Selection of the different flow paths is made by simply reducing flow through the valve below a predetermined fluid flow threshold and then increasing the flow rate above the threshold.

Abstract: The invention provides a switching device for an irrigation system. The switching device provides selective communication between a supply port to which a supply of fluid under pressure can be attached and a balloon port to which a fixing balloon of a catheter can be attached, and between the supply port and a port to which a liquid reservoir can be attached. By use of a selection handle, the user can deform conduits in a pre-determined sequence and thus control an irrigation procedure by opening and closing fluid flow in various conduits. The invention further provides an irrigation device incorporating the switching device and a method of controlling a fluid flow e.g. in an irrigation system.

Abstract: A valve for diverting the flow of fluid has a housing with an inlet and a plurality of outlets arranged in spaced relation around the housing. A body is positioned within the housing. The body is rotatable relatively to the housing and has an intake port and an exhaust port joined by a void space. The intake port is aligned with the housing inlet and both the intake port and the housing inlet are coaxially aligned with the axis of rotation of the body. The exhaust port is positioned eccentric to the axis and may be aligned with any one of the plurality of housing outlet ports upon rotation of the body relatively to the housing. A seal is positioned between the body and the housing. The seal surrounds the outlets and the exhaust port to prevent leakage when the exhaust port is aligned with an outlet.

Abstract: A fluid divider valve includes a housing defining a longitudinal bore having a fluid inlet. The housing defines a plurality of outlets in fluid communication with the longitudinal bore. A valve shaft is sealingly engaged within the longitudinal bore of the housing. The valve shaft has an internal longitudinal flow passage in fluid communication with the fluid inlet of the housing. The valve shaft has a plurality of radial fluid ports formed therein which extend from the internal longitudinal flow passage to an exterior portion of the valve shaft. The valve shaft is mounted for movement relative to the housing between a first position in which the valve shaft permits fluid communication between the fluid inlet and each of the outlets simultaneously through the radial fluid ports of the valve shaft, and a second position in which the valve shaft prevents fluid communication between the fluid inlet and the outlets.

Abstract: The invention relates to a material feed receptacle for a thick matter pump comprising a receptacle lower part and a receptacle top that is detachably connected to the receptacle lower part, a two-part front wall, a rear wall, two two-part lateral walls, an upwardly pointing material feed opening delimited by a peripheral edge, and a pipe junction, which is situated inside the receptacle, can, on the entry side, swivel in an alternating manner in front of the delivery cylinder openings and which, on the output side, leads to a pressure pipe. The invention provides that the receptacle top has an upper lateral wall part and upper lateral wall parts, which have free ends and which extend away from the front wall part. The invention also provides that the peripheral edge has a first edge part, which forms an upper edge of the receptacle top, and ha a second edge part on the receptacle lower part, which is situated on the rear wall and is joined to the first edge part.

Abstract: A diverter valve for a material transportation system includes a front cover defining an inlet passage, a rear cover defining first and second outlet passages, a casing connected to the front and rear covers and an inner tube arranged in the casing. The inner tube rotates to selectively align an outlet thereof with the first or second outlet passage. An inlet of the inner tube aligns with the inlet passage and the first outlet passage to thereby provide a straight passage through the diverter valve which aligns with a straight passage through the transportation system. When the inlet of the inner tube aligns with the second outlet passage, it provides a straight, branched passage through the diverter valve to, e.g., a receiving container. The inner tube is rotated between its alignment with the first or second outlet passage by an actuator.

Abstract: A faucet includes a faucet body, a connecting member mounted in the faucet body, a control valve mounted between the faucet body and the connecting member, a plurality of elastic plates each connected between the faucet body and the connecting member, a first connector selectively connected with the connecting member, and a second connector selectively connected with the connecting member. Thus, the connecting member is connected with a water supply line by the first connector or the second connector so that the faucet is available for water supply lines of different types and sizes.

Abstract: A subsea fitting is disclosed. The subsea fitting includes a body. The fitting includes at least two passages through the body. The passages are in fluid communication within the body. A diverter is located in at least one of the passages. The diverter may be movable between an open position and a closed position. In the open position, the diverter allows open flow between two of the passages. In the closed position, the diverter inhibits flow between the two passages.

Abstract: A gas channeling device for selectively channeling blasts of gas from an air cannon to various locations comprises a stationary portion and a movable portion. The stationary portion comprises a fluid inlet passageway and at least first and second fluid outlet passageways. The movable portion comprises a fluid channeling passageway, and is pivotally movable about a pivot axis relative to the stationary portion in a manner such that the movable portion can be selectively positioned in alternative first and second positions relative to the stationary portion. The fluid channeling passageway operatively connects the fluid inlet passageway to the first fluid outlet passageway when the movable portion is in the first position. The fluid channeling passageway operatively connects the fluid inlet passageway to the second fluid outlet passageway when the movable portion is in the second position.

Abstract: The invention relates to a material feed receptacle for a thick matter pump comprising a receptacle lower part and a receptacle top that is detachably connected to the receptacle lower part, a two-part front wall, a rear wall, two two-part lateral walls, an upwardly pointing material feed opening delimited by a peripheral edge, and a pipe junction, which is situated inside the receptacle, can, on the entry side, swivel in an alternating manner in front of the delivery cylinder openings and which, on the output side, leads to a pressure pipe. The invention provides that the receptacle top has an upper lateral wall part and upper lateral wall parts, which have free ends and which extend away from the front wall part. The invention also provides that the peripheral edge has a first edge part, which forms an upper edge of the receptacle top, and ha a second edge part on the receptacle lower part, which is situated on the rear wall and is joined to the first edge part.

Abstract: A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.

Abstract: A subsea fitting is disclosed. The subsea fitting includes a body. The fitting includes at least two passages through the body. The passages are in fluid communication within the body. A diverter is located in at least one of the passages. The diverter may be movable between an open position and a closed position. In the open position, the diverter allows open flow between two of the passages. In the closed position, the diverter inhibits flow between the two passages.

Abstract: A diverter valve having an improved transition at the connecting branches, wherein one inlet and two outlet ports are formed and a cylindrical rotary valve incorporating a straight inner pipe is provided.

Abstract: The present disclosure provides a flow splitter for dividing a flow of a fluid into a first outlet and a second outlet. The flow splitter comprises a pivot having a flapper portion, which can ensure that water will continue to flow to an outlet, even if the outlet is partially or completely obstructed.

Abstract: An ice making, and delivery apparatus for making and delivering ice to different ones of a plurality of receptacle units is provided, in which ice delivered via a conduit to a diverter valve mechanism, is diverted from alignment with one ice discharge line to another, depending upon sensors in ice receptacles recognizing a level of build-up of ice in any given receptacle, for computer control of a gearmotor for moving the diverter valve from one position to another. Various controls are provided for preventing ice build-up, and for operating the diverter valve during a “dwell” period of ice movement in the conduit, as distinguished from a “push” period of ice movement in the conduit to the diverter valve. A force multiplication technique is employed for moving the diverter valve notwithstanding the presence of ice therein.

Abstract: A needle valve with a hollow needle effective for permitting a portion of the fluid passing through the valve to flow throughout the valve and exit through any leaks in the valve, whereby any environmental fluid within the valve is displaced by the fluid passing through the valve.

Abstract: A multi-port flow selector manifold valve includes a plurality of inlet ports adapted to be coupled to a fluid source, a test outlet adapted to communicate with at least one of the plurality of inlet ports, and a production outlet adapted to communicate with at least at least one of the plurality of inlet ports. A flow path is rotatably disposed between the test outlet and the plurality of inlet ports such that the flow path is rotatably alignable with each of the plurality of inlet ports. The flow path includes an inlet flow path having a longitudinal direction of flow and adapted to communicate with one of the plurality of inlet ports, an outlet flow path having a direction of flow substantially parallel to the inlet direction of flow and adapted to communicate with the test outlet, and an offset portion disposed between the inlet flow path and the outlet flow path. The offset portion has a direction of flow with an angle of less than 90 degrees to the outlet direction of flow.

Abstract: A multiport diverter valve comprising a valve housing defining a valving chamber therein. A plurality of ports open into the chamber. A flow diverter is pivotally mounted in the chamber and has a concave diverter surface forming a portion of a torus. First and second ends of the torus communicate with a first adjacent pair of the ports to provide a flow path between the adjacent pair. A valve handle is adapted to pivot the diverter to a position connecting a second adjacent pair of the ports with the second pair of ports including one of the ports from the first pair. The handle is further adapted to pivot the diverter to a position connecting all of the ports.

Abstract: The invention relates to a material feeding container for two-cylinder thick matter pumps. The material feeding container (24) has a material supply opening (30) oriented upward, two feed cylinder openings (34) arranged in the front wall (36) of the container and a transfer tube having the shape of an S-tube (42), which is arranged inside the container with its input end (48) swiveling in an alternating manner in front of the feed cylinder openings (34) and mounted on the output side in a feed-through opening (46) of the rear wall (38) of the container that is arranged above the feed cylinder openings. A pressure pipe (40) is connected to the outer side of the rear wall (38) of the container, the output side (44) of the S-pipe (42) leading into said pressure pipe. According to the invention, a maintenance opening (56) is arranged on the rear wall (38), which is formed by an opening defined by a peripheral edge (58).

Abstract: A valve for a branching and/or connecting location of a piggable line for coating material such as paint includes a valve housing for a first throughgoing line, to which at least one second line is selectively connectable, as well as a valve closure body that is spring loaded by a valve spring and that is movable against the force of the valve spring. The valve housing and the valve closure body respectively have flushly aligned bores that have the same contour and the same diameter as each other, and that are directly adjoining each other in the closed position. This diameter is equal to the clear inner diameter of the piggable line. For opening and closing the second line, the valve closure body is movable in the valve housing in the axial direction of the bore thereof.

Abstract: The invention relates to a material feeding container for two-cylinder thick matter pumps. The material feeding container (24) has a material supply opening (30) oriented upward, two feed cylinder openings (34) arranged in the front wall (36) of the container and a transfer tube having the shape of an S-tube (42), which is arranged inside the container with its input end (48) swiveling in an alternating manner in front of the feed cylinder openings (34) and mounted on the output side in a feed-through opening (46) of the rear wall (38) of the container that is arranged above the feed cylinder openings. A pressure pipe (40) is connected to the outer side of the rear wall (38) of the container, the output side (44) of the S-pipe (42) leading into said pressure pipe. According to the invention, a maintenance opening (56) is arranged on the rear wall (38), which is formed by an opening defined by a peripheral edge (58).

Abstract: A diverter valve for selectively passing water from a ballcock valve directly to a water storage tank or to the rim of a toilet. It includes a diverter plunger which places a deflector into the path of water from the ballcock, and a float which removes the deflector from the lumen when the ballcock valve is closed and the water level is sufficiently high, and lowers the plunger when the water level is sufficiently low.

Abstract: A valve for a branching and/or connecting location of a piggable line for coating material such as paint includes a valve housing for a first throughgoing line, to which at least one second line is selectively connectable, as well as a valve closure body that is spring loaded by a valve spring and that is movable against the force of the valve spring. The valve housing and the valve closure body respectively have flushly aligned bores that have the same contour and the same diameter as each other, and that are directly adjoining each other in the closed position. This diameter is equal to the clear inner diameter of the piggable line. For opening and closing the second line, the valve closure body is movable in the valve housing in the axial direction of the bore thereof.

Abstract: It is an object of the present invention to provide a changeover valve which is capable of preventing granular material from being crushed when the granular material is transported by gas through a pipe system, and more particularly a changeover valve which is capable of preventing grain from being crushed, broken, and chipped when the grain such as rice is transported by gas through the pipe system. It is another object of the present invention to provide a gas transportation pipe system for grain to which the changeover valve is applied.

Abstract: A changeover valve comprises a first valve member and a second valve member. The first value member has an aperture. The second valve member has first and second apertures. The first valve member is movable relative to the second valve member for selective alignment of the first value member aperture with one or other of the apertures of the second valve member. The value also has a ramp and follower means for automatically moving the valve member away from the one another during changeover movement of the first valve member relative to the second valve member so that wear on the surfaces of the valve members is minimized.

Abstract: A seal assembly is provided for reception of an elongated surgical instrument, which comprises a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner, the seal member further including a peripheral flange element which contacts a surface of the body to form a contact seal therewith; and a fabric layer juxtaposed relative to the resilient material. The seal assembly may further include a coating applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein.

Abstract: A valve having a port defining a first internal passageway and a body portion defining a second internal passageway. Also provided is a first aperture and an opposingly located second aperture which are in communication with the second passageway. The first aperture is adapted to permit water to flow into the livewell for recirculation and the second aperture is adapted to permit water to pump out of the livewell. A diverter is position in the location where the internal passageways merge. The diverter is moveable between first and second positions. In the first position, the diverter directs water flow through the first aperture and prevents water from flowing through the second aperture to effectuate recirculation. In the second position, the diverter directs the flow of water through the second aperture and prevents water from flowing through the first aperture to effectuate pump out of the livewell.

Abstract: The invention relates to a valve for changing the flow direction of a fluid in conduits, which conduct the fluid to and from, respectively, a heat exchanger. Heat exchangers used in systems where the cooling water is taken from natural streams, river water, sea water etc often have problems with clogging. A method of keeping the heat exchanger clean is to regularly backflush it, i e to reverse the flow direction for example a few times every day, so that silt and particles, which have got stuck in the inlet region of the heat exchanger, are flushed out the same way as they entered.The valve according to the invention comprises a cylindrical casing and a valve body (18) enclosed therein. The conduits, which conduct the fluid to and from, respectively, said heat exchanger, are connected to two diametrically arranged connection tubes in the respective end plate on the casing, and by rotation of the valve body substantially 90.degree.

Abstract: A rotatably operable nozzle assembly for spraying provided to an operating member for spraying which has a valve stem engaging hole into which a valve stem of a mounting cap of an upper end of a canister is engaged, wherein a spray port of the spray port member is opened when the nozzle assembly for spraying is hung, while a horizontal holding plate is positioned to be brought into contact with or approach towards a top face of the spray port member in a position for covering the spray port of the spray port member when the nozzle assembly for spraying is rotated by 90 degrees into a horizontal position; and a base portion of the nozzle assembly for spraying has a face suitable for rotation on the side opposite to the spray port, thereby allowing rotation of the operating member for spraying.

Abstract: A portable excavator having a tube to point a supersonic gas stream at a buried object. The excavator includes a movable member disposed within the conduit to pulse gas passing through the conduit and a supersonic gas nozzle at the exit of the conduit. Compressed gas delivered to the conduit exits the nozzle in a pulsed manner at two to three Hz. The movable member includes a piston which blocks gas from flowing through the conduit by the biasing force of a spring. When the force from the pressure differential across the piston exceeds the biasing force, the piston moves and allows gas to flow through the conduit until the force from the pressure differential across the piston is less than the biasing force.

Abstract: A pressure equalization valve for alternatingly equalizing pressures between a first fluid source and at least two second fluid sources is disclosed. The pressure equalization valve includes a valve body, which includes a first port in fluid communication with the first fluid source and at least two second ports in fluid communication with the at least two second fluid sources, respectively, and a valve gate movable between a first equalizing position, wherein the valve gate allows fluid flow through one of the second ports and restrains fluid flow through another of the second ports to equalize substantially the fluid pressure between the first fluid source and one of the second fluid sources, and a second equalizing position, wherein the valve gate restrains fluid flow through the one of the second ports and allows fluid flow through the other of the second ports to equalize substantially the fluid pressure between the first fluid source and another of the second fluid sources.

Abstract: A pump valve assembly includes a pair of pistons containing cylinder bores opening to a front wall for conveying a concrete mixture from a feed chamber to a delivery tube. A pivotal S-bend tube establishes fluid communication between two valve body wear rings and the delivery tube to cause a translational movement of the input port to the valve assembly between two operative positions in which the input port is in register with the wear rings, the S-bend tube also being engaged with a wear ring. During use, compression of the valve assembly against a positive displacement pump is achieved solely at the front wall of the assembly, with the delivery tube at the rear wall providing only alignment and support, thereby enabling rapid disassembly and access to the valve body and S-bend wear rings.

Abstract: A valve device adapted to meter the amount of any specific type of particulate matter--particularly livestock feed--being introduced into a mixture. The device uses a pair of compartments in a cylinder, the compartments being defined by pistons and using adjustments to control the size of the compartment.

Abstract: The invention concerns a slide valve for a two-cylinder pump, in particular a truck-mounted concrete pump. The slide valve has an essentially C-shaped swing pipe which is connected at the upper end by a rotating joint to a discharge line and is mounted so that it can be rotated by a switchover mechanism about an axis which is essentially parallel to the axes of the pump cylinders in such a way that its lower end, which is fitted with a wearing ring, is connected alternately to the apertures at the ends of the pump cylinders connected to the rear wall of a feed tank. In order to enable the swing pipe to swing through a large distance, the swing drive cylinders, which are preferably designed as piston/cylinder units, are mounted in ball sockets located at the cylinder bearings and their axes of operation include between then an obtuse angle facing the rear wall.

Abstract: An inflatable seating cushion provides intermeshed cell structures so that air pressure changes from one of the cell structures to the next provides for improved comfort during long sitting periods. A manual selection switch allows an inflation means to be interconnected with any one of the cell structures. An alternate inflation fixture provides a means for inflating all of the cell structures simultaneously.