Abstract: The invention relates to an apparatus for flushing hydraulic pipe systems of so called normal size. Between the pipe system (1) and a hydraulic aggregate (2) a dual cylinder (8) is connected, having a common piston shaft (12) such that when the hydraulic aggregate (2) pumps pressure fluid into one of the chamber parts (15, 16) containing the piston shaft (12), the other corresponding chamber part (16, 15) and one (13) of the two outer chamber parts (13, 14) feeds in flushing fluid to the inlet (6) of the pipe system (1) while the other (14) of the outer chamber parts receives fluid from the outlet of the pipe system (1) through a filter (23) and the remainder of the outlet flow is directed back to the hydraulic aggregate (2). In this manner, a flushing volume considerably exceeding the volume capacity of the hydraulic aggregate (2) is attained.

Abstract: A device for connecting two conduit parts, in particular two parts of a pollutant fluid circuit, comprises a first connector part enclosing a first valve member elastically urged towards a first valve seat to isolate a fluid outlet. A second connector part comprises a tubular element defining an inlet conduit and enclosing a second valve member elastically urged towards a second valve seat to isolate a fluid inlet. A system is provided for cleaning contacting surfaces of the two connector parts and in particular those of the two valve members. The valve members have respective complementary shape mutually contacting surfaces and are adapted to be movable conjointly while remaining in contact so as to enable the fluid to pass.

Abstract: A valve which is fitted with two sealing places which are disposed in series and in the closed position of the valve prevent the overflow of fluid from one valve casing part into another, with the leakage cavity disposed between the sealing places and connected to the outside of the valve through the valve casing, has a closed position in which the connection of the leakage cavity with an inside space of the valve casing parts is sealed by a closing member cooperating with the two sealing places.The connection between the leakage cavity and the inside space can be controlled also in positions other than the closed position of the valve by a locking piece which substitutes the closing member regarding its interaction with the leakage cavity. This locking piece, which is movable relative to the closing member in the direction of the degree of freedom of motion of the closing member, controls the connection between the leakage cavity and the inside space.

Abstract: An apparatus and a method are disclosed for the removal and the recovery of washcoat remaining in the channels of freshly coated monolithic or honeycombed catalytic carriers. The carrier is inserted into a chamber from above and tightly fitted therein at least with the lowest part of the carrier therein. The chamber is fitted with a collection area and a runoff located thereunder. The runoff leads via a shutoff valve into a separation vessel under a vacuum. The opening and closing of the shutoff valve causes air to be aspirated through the carrier channels, which are open at the top or are gradually opened by means of a slotted slide. This action causes the washcoat remnants to be transferred into the separation vessel, where they can be collected in the sump and are then pumped off. The apparatus can be used in systems for manufacturing catalysts for cleaning exhaust gases.

Abstract: A multi-lance cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a lance housing, a slidable manifold within the lance housing, a single conduit connecting the manifold with a high pressure, high volume fluid source, a spool for storing the conduit permitting it to be advanced and retracted, means for moving the manifold within the housing, a conduit securing and supporting assembly, a plurality of lances removably attached to the manifold and adapted to fit within a heat exchanger tube and tube guides to guide and support the lances. The apparatus further includes a means for positioning the housing with respect to a heat exchanger tube bundle to be cleaned.

Abstract: A multi-lance cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a lance housing, a slidable manifold within the lance housing, a single conduit connecting the manifold with a high pressure, high volume, fluid source, a hose enclosure for enclosing the high pressure water hose permitting the hose to advance and retract, means for moving the manifold within the housing, a plurality of lances removably attached to the manifold and adapted to fit within a heat exchanger tube, tube guides to guide and support the lances, and a slide plate on which the manifold is located for preventing the lances from bending and entering the hose enclosure. The apparatus may further include means for positioning and guiding the housing with respect to a heat exchanger tube bundle to be cleaned.

Abstract: Reciprocating valves in a fluid system of a four-speed automatic transmission having grooves that collect and shed dirt and other contaminants which may inhibit the operation of the valves.

Abstract: What is provided is a water line connected onto the outflow end of the whirlpool bath; a source of pressurized water, for example from a hose connected onto the second end of the flowline, so that introduction of water from the hose introduces the water into the line and up through the outflow pipe into the pump which in turn would be expelled from the intake ports around the base of the mechanism; a valving means at the end of the flow line, in order to reduce the pressure of the fluid flow to avoid movement of the fluid into the motor assembly adjacent the juncture of the flow line and the flow pipe; a second line forming a juncture with the fluid line, the second line capable of adapting a volume of cleaning solution thereunto, so that upon introduction of fluid into the line from the hose, the cleaning solution may in turn be introduced into the flow of the water into the mechanism to provide a cleaning solution or disinfectant through the mechanism; a second valving member means for controlling the amoun

Abstract: A multi-hose flexible lance tube cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a spool and means for rotating the spool. A plurality of tubular flexible lances are reeled on the spool assembly. Each flexible lance is in communication with a high pressure fluid source and is adapted to fit within a heat exchanger tube. The flexible lances advance into the interior of the heat exchanger tubes as the spool is rotated to reel out the flexible lances and as the high pressure fluid exits the jetting tips of the flexible lances. The cleaning apparatus also includes tube guides to guide and support the flexible lances and further includes a positioning assembly for positioning the flexible lances in substantial alignment with the heat exchanger tubes.

Abstract: A method and apparatus for cleansing the upper interior surfaces of a concrete sewer conduit, the apparatus including the concrete sewer pipe and a plurality of spray nozzles spaced apart and adapted to be introduced into and disposed in and along a length of concrete sewer to enable continuous or intermittent spraying of the upper interior surface or, alternatively, to be permanently mounted along the length of the concrete sewer conduit when newly constructed.

Abstract: The invention relates to an apparatus for flushing a hydraulic small-diameter pipe system or the like. Two pressure accumulators (33a and 33b) are arranged at one end of the pipe system (20), connectable alternately to the pipe system and to a tank (39), for receiving a volume of liquid corresponding to volumes of gas and liquid, respectively, which are alternately introduced into the opposite end of the pipe systems for filling the pipe system with alternating columns (42, 43) of flushing liquid and compressed gas, and on achieving a predetermined pressure in the pipe system, the pipe system is opened into a receiving tank, whereby the compressed gas is suddenly expanded and drives a forceful flushing pulse through the pipe system.

Abstract: A multi-lance cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a lance housing, a slidable manifold within the lance housing, a single conduit connecting the manifold with a high pressure, high volume fluid source, a spool for storing the conduit permitting it to be advanced and retracted, means for moving the manifold within the housing, a plurality of lances removably attached to the manifold and adapted to fit within a heat exchanger tube and tube guides to guide and support the lances. The apparatus further includes a means for positioning the housing with respect to a heat exchanger tube bundle to be cleaned.

Abstract: A sediment alert and purging unit for a condensate drain pan and removal return line of a refrigeration system includes an element for monitoring the level of condensate within the condensate drain pan and removal line of a refrigeration system. The unit further includes a switch element in electrical communication with the monitoring element for disabling at least a compressor and air handler of the refrigeration system responsive to an unacceptable level of condensate within the drain pan and removal line. The inventive unit yet further includes an annunciation element in electrical communication with the switch element to alert a user when a disabling of the compressor and air handler has occurred. The unit also includes a purge port within the condensate removal line and a first condensate line closure valve disposed upstream of the purge port. Further provided is a second condensate line closure valve disposed downstream of the purge port.

Abstract: A catalyst trough containing multiple guide tubes in registry with the tubes of a multi-tube catalytic reactor is utilized to unload catalysts therefrom with maximum dust containment and maximum catalyst recovery. The catalyst recovery trough contains an outlet collar connected to an outlet line and a positive fastener whereby the trough is fixedly but detachably connected to the tube sheet of the reactor. The guide tubes extend vertically upwardly from the bottom of the trough and are open in the bottom so as to allow the provision of flexible steel rods or "fish tapes", which may or may not be equipped with high-fluid pressure tubes as air-lances for feeding into the tubes of the reactor, which are on center with the guide tubes of the trough. In this manner any catalytic material which is stuck or bridged across the catalytic tubes may be dislodged so as to fall by gravity into the recovery trough and into an outlet line for recovery.

Abstract: Apparatus and method for cleaning heat exchangers when overhauling transmissions or the like wherein the inlet and outlet of a heat exchanger is disconnected from the transmission and connected to a source of solvent, oil and air. Solvent is first injected into the heat exchanger in a direction reverse to the normal flow of oil through the heat exchanger. This injection of solvent is stopped, then started again after a predetermined delay time. This injection and delay cycle may be repeated.Air is now injected under pressure into the heat exchanger in a direction reverse to the flow of oil therethrough, i.e. in the same direction as the solvent injection.Thirdly, oil is injected into the heat exchanger in the normal direction of flow of oil therethrough for a predetermined time. This injection of oil is stopped for a predetermined period of time. The injection and delay cycle for oil injection may also be repeated.

Abstract: An electromagnetically actuated, pilot operated valve having a nonmetallic body with a pressure responsive disphragm for opening the main valve and defining, in cooperation with a guide member, a pilot chamber having an armature/pilot valve member movably received thereon. The guide member has a bleed-supply hole formed therein and is secured to the body by an annular member attached to the body by nonmetallic weldment and integrally defining a cup into which a solenoid coil is received over the guide member and potted by liquid-cast insulating material. An armature guide member-diaphragm subassembly has the guide with armature received therein with the diaphragm peripherally secured thereto by a ring pressed thereover, the ring interfitting with cooperating body surfaces to define restricted passage to filter flow to the pilot chamber bleed hole.

Abstract: A valve assembly having a diaphragm valve configured for efficient cleaning and sterilization, and a method for operating the valve assembly in a manner controlling the fluid material flow therethrough and for effecting cleaning thereof. The valve assembly includes a valve body defining inlet and outlet ports. The diaphragm valve is operably arranged between the ports. An actuator mechanism selectively positions the diaphragm valve relative to a valve seat defined by the valve body. A selectively operated clamping mechanism arranged on one side of the diaphragm valve develops a clamping force which is used to seal the diaphragm valve against an annular sealing surface area defined by the valve body. A cleaning system arranged on an opposite side of the diaphragm valve facilitates internal cleaning of the valve assembly, including the diaphragm valve and the annular sealing surface area upon release of the clamping force acting against the diaphragm valve.

Abstract: Apparatus for uniformly wetting a curvilinear surface of a length of tubing with solvent or other liquid. A wetting element such as a block of porous material has a curvilinear portion with a shape complemental to the shape of the surface to be wetted. The liquid is supplied to the wetting element by capillary action through a porous block or a sponge and passes into and through the wetting element, wetting the curvilinear portion. When the tubing to be wetted is brought into close contact with the curvilinear protein, the liquid is transferred to the tubing, forming a uniform coating on the surface thereof. Compressed air may be applied to the liquid through a pulse valve to urge the liquid into the wetting element as needed to re-wet the wetting element.

Abstract: A flushing unit has an extraction borehole for process gases and a flushing gas line, which can be connected via a flushing gas connection to a flushing gas supply. In order for only one fitting to be flushed by a circulation flushing operation with an inert gas or a flushing gas, the flushing unit has a flushing gas outlet which is connected to the extraction borehole, and which is opened or closed with a stop valve.

Abstract: A spray gun cleaning apparatus for containing and collecting toxic materials resulting from cleaning a spray gun with a cleaning fluid is disclosed. The apparatus includes an interior airflow passageway, a receptacle at an inflow end of the passageway for receiving the spray from the spray gun nozzle, and an outlet at the other end of the passageway for discharging airflow into the ambient environment. At least one filter/condenser is located within the passageway for condensing cleaning fluid vapor into liquid which flows into a waste container, preferably by gravity flow.

Abstract: What is provided is first connectably engaging the first end of a water line onto the outflow end of the whirlpool bath; providing a source of pressurized water, for example from a hose onto the second end of the flowline, so that introduction of water from the hose introduces the water into the line and up through the outflow pipe into the pump which in turn would be expelled from the intake ports around the base of the mechanism; providing a second line forming a juncture with the fluid line, the second line capable of adapting a volume of cleaning solution thereunto, so that upon introduction of fluid into the line from the hose, the cleaning solution may in turn be introduced into the flow of the water into the mechanism to provide a cleaning solution or disinfectant through the mechanism; providing a valving means for controlling the amount of flow of cleansing solution or disinfectant into the fluid flow line; and providing a means for measuring quantity of disinfectant being introduced into the line pe

Abstract: A pipe system purging assembly (10) is adapted for connection to a blocked pipe system (12) for the purpose of eliminating or reducing blockage therein. The preferred embodiment of the purging assembly (10) includes a internal tubing system (16) which is connected to the blocked pipe system (12) by an adaptive connector (14). A shock producing subassembly (20) then delivers rapid and repeated hydraulic shocks through the fluid into the blocked pipe system (12). Alternate subassemblies for enhancing the operation of the assembly (10) include a backpump subassembly (34), a fluid input subassembly (36) and a visual inspection subassembly (42). An inventive method of purging blockage from pipe systems is also provided with the steps of filling the isolated pipe system with fluid and delivering repeated hydraulic shocks thereto for the purposes of dislodging the blockage. Direct physical shocks may also be provided to the pipe system (12).

Abstract: This invention relates to the supply piping system of the process gas for various types of thin-film making and fine pattern dry etching process, and more particularly to the process gas supply system, which makes it possible to form high quality thin films and to perform high quality etching.Specifically, when there are a unit in operation with process gas supplied and a unit not in operation with no process gas supplied in a process gas supply piping system, supplying the process gas to two or more process units from a cylinder cabinet piping system, this invention provides a gas supply piping system, where the process gas supply piping line to the process unit not in operation can be purged with purge gas all the time and where gas flows all the time through all of gas supply piping lines to eliminate the stagnation of gas.

Abstract: An improved gate valve is described. The valve utilizes a flat gate having a beveled edge which slices across a central passage in the valve housing when the valve closes. A manifold is disposed in the passage to direct a purge stream of fluid across the beveled edge as the gate closes. The valve housing consists of upstream and downstream housings which are intended to be bolted together. The adjacent portions of the housings form a first slot in which the gate is slidably received and a second slot downstream of the second slot is formed in the downstream housing. In one embodiment a seat is slidably disposed in the slot which extends laterally across the passage parallel to the gate. In another embodiment the slot extends axially along the passage and the seat is cylindrical slidably retained therein. In the cylindrical seat embodiment the seat is reversible.

Abstract: Apparatus for cleansing the upper interior surfaces of a concrete sewer conduit, the apparatus including the concrete sewer pipe and a plurality of spray nozzles spaced apart and adapted to be introduced into and disposed in and along a length of concrete sewer to enable continuous or intermittent spraying of the upper interior surfaces or, alternatively, to be permanently mounted along the length of the concrete sewer conduit when newly constructed.

Abstract: An apparatus is used for both repair of operating pipelines and protection of newly built pipelines and comprises a cleaning tool (1) which is caused to move in the interior of the pipeline (5) under the action of a flow of fluid containing a dissolved inhibitor. The cleaning tool comprises a hub (3) on which blades (4) are secured in two rows to engage the pipeline surface. The blades (4) are displaced with respect to one another so that the angle between two adjacent blades is from 10.degree. to 25.degree. to define apertures along the periphery of the cleaning tool through which jets of fluid can flow to remove a part of deposits and to impregnate the remaining layer with the inhibitor dissolved in the fluid as so to form a protective coating. A support member (11) carrying an impact-type alarm member is mounted on the cleaning tool (1) so as to facilitate location of the apparatus in the pipeline and to maintain the apparatus in a desired position.

Abstract: A paint color change system in which the paint flow passage of the paint supply line leading to a paint atomizer is cleaned using a scrubbing medium comprising a compressible carrier containing an atomized solvent.

Abstract: A glue head/line flushing system uses compressed air to circulate a cleaning agent or solvent from a reservoir and through filtering elements to a solvent manifold. The glue head/line is connected to the solvent manifold and the glue and/or glue particles are flushed from the glue head/line. The glue head/line is then connected to an air manifold to remove any remaining particles of glue and also any solvent from the glue head/line.

Abstract: A method and apparatus provide for selective generation of pulses at water jets of a jet nozzle terminating a high pressure cleaning hose of a sewer cleaning machine. A ball valve is connected as a pressure bleeder to the high pressure side of the sewer cleaning machine pump and hence, the cleaning hose, for relieving pressure from the hose when the valve is open. A motor is connected to operate a rotatable element of the ball valve to automatically cycle the valve and generate a series of high pressure pulses at the water jets to thereby generate a hammering action to assist in penetration of blockages in a sewer being cleaned. The amplitude of the pulses is controlled by a second valve connected to the ball valve and the pulses preferably are generated at a frequency of approximately 3 hertz. The motor may be activated and deactivated by a blockage sensor which detects engagements of the nozzle with blockages formed by concentrations of refuse and debris within a sewer being cleaned.

Abstract: An essentially self-contained mobile tube cleaning machine which is remotely operable so that there is no need for operating personnel to be in close proximity to cleaning nozzles or other high pressure lines during tube cleaning operations. As a consequence, significantly higher water pressures and significantly higher water flow rates can be utilized thereby not only accelerating the rate of cleaning but also the efficiency and the effectiveness of the cleaning operation. Through the provision of a nozzle head at the end of an articulatable boom, it is possible to adjust the location of the nozzle through movement of the boom in order to clean the face of a tube bundle, the shell side of a tube bundle and the interior of the tubes themselves.

Abstract: A double seat valve includes a housing with a pair of valve disks independently movable within the housing between a closed position and an open position. Further, the valve disks can also be moved as a unit. A hollow leakage space is located between the valve disks. Leakage can be conveyed from the space to the exterior of the housing. Each valve disk has a separate valve seat and a cylindrically shaped wall surface extends between the valve seats and defines the radially outer boundary of the leakage space. A seal mounted in the first valve disk contacts the first valve seat in the closed position and moves in sealing contact with the cylindrically shaped wall surface as the first valve disk moves from the closed position toward the open position so that leakage losses from the valve are avoided.

Abstract: Dialysate preparation apparatus having a main flow line having one end for connection to a source of water and another end for providing dialysate to a dialyzer, a concentrate flow line having one end connected to a junction on the main flow line and another end with a connector for alternatively connecting the concentrate line to a source of dialysate concentrate or a source of cleaning fluid, a source of dialysate connectable to the connector, a source of cleaning fluid having a cleaning fluid flow line with an end that is connectable to the connector, a flow sensing switch on the cleaning fluid flow line, and a controller connected to receive a signal from the switch to verify that the apparatus is in a cleaning mode when the switch indicates fluid flowing in the flow line. Also disclosed is a controller providing an initial backflush prior to pumping cleaning fluid into the apparatus in order to provide a water interface between the dialysate and the incoming cleaning fluid.

Abstract: A butterfly valve having a two piece body, an annular seat carried in the body and a disk mounted in the body for rotation within the seat. An indicator plate mounted at one end of the body and a valve actuator attached to the disk shaft and overlying the plate with a detent arrangement for indicating valve position. Outlet nozzles carried on the disk with a flow path from the exterior of the valve to the nozzles for introducing fluid flow into the pipeline, with check valves in the valve body and in the nozzles. A special disk configuration for reducing damage to the disk edge.

Abstract: In normal washing operation of the beverage glass washer of the invention, detergent solution discharged from a set of washing nozzles is collected in a tank from which a recirculation pump withdraws it and delivers it back to those nozzles for redischarge; and rinsing liquid from another source is delivered to a set of rinsing nozzles for discharge from them. For cleaning and deliming all nozzles, the tank is filled with a cleaning solution and the two sets of nozzles are connected, either by opening a normally closed solenoid valve in a permanent connection between the two sets of nozzles or by slipping opposite ends of a suitably sized hose over a cylindrical nozzle body of each set. The recirculation pump then flushes the solution from the tank through all nozzles of both sets.

Abstract: A spray gun cleaning apparatus having a cleaning basin with an open top portion, a cleaning solvent reservoir, means for circulating solvent from the reservoir to the interior of the basin, and a vapor collection system associated with the basin. The vapor collection system includes a vapor collection manifold positionable adjacent to the periphery of the basin, manifold inlet means extending about the periphery of the basin, an exhaust opening in a portion of said manifold, a vacuum source having its inlet end in communication with the manifold exhaust opening and its outlet end in communication with a vapor discharge line. Upon actuation, the vacuum source evacuates vapors from the manifold interior by inducing air and vapor flow from the interior of the basin through the manifold and into the vapor discharge line.

Abstract: A catalyst trough containing multiple guide tubes in registry with the tubes of a multi-tube catalytic reactor is utilized to unload catalysts therefrom with maximum dust containment and maximum catalyst recovery. The catalyst recovery trough contains an outlet collar connected to an outlet line and a positive fastening means whereby the trough is fixedly but detachably connected to the tube sheet of the reactor. The guide tubes extend vertically upwardly from the bottom of the trough and are open in the bottom so as to allow the provision of flexible steel rods or "fish tapes", which may or may not be equipped with high-fluid pressure tubes as air-lances for feeding into the tubes of the reactor, which are on center with the guide tubes of the trough. In this manmner any catalytic material which is stuck or bridged across the catalytic tubes may be dislodged so as to fall by gravity into the recovery trough and into an outlet line for recovery.

Abstract: An essentially self-contained mobile tube cleaning machine which is remotely operable so that there is no need for operating personnel to be in close proximity to cleaning nozzles or other high pressure lines during tube cleaning operations. As a consequence, significantly higher water pressures and significantly higher water flow rates can be utilized thereby not only accelerating the rate of cleaning but also the efficiency and the effectiveness of the cleaning operation. Through the provision of a nozzle head at the end of an articulatable boom, it is possible to adjust the location of the nozzle through movement of the boom in order to clean the face of a tube bundle, the shell side of a tube bundle and the interior of the tubes themselves.

Abstract: A system for purging fluid delivery systems such as paint spray guns with non-toxic, non-polluting cleaning solvents. A sealed tank is provided for storing a cleaning solvent with air pressure applied to deliver the cleaning solvent through a coaxial hose to a slide selectable valve. Pressurized air is also connected to one of the conduits of the coaxial hose. Spray guns or fluid delivery systems are cleaned and purged by first releasing the cleaning solvent in the passageways and then quickly switching to a blow-down mode on the slide selectable valve to discharge the cleaning solvent from the spray gun passages.

Abstract: In packing machines which produce aseptic packing containers for e.g. foodstuffs, it is of greatest importance that the machines can be cleaned and sterilized in a satisfactory manner prior to the production of packing containers. In accordance with the invention a method and an arrangement are provided on a packing machine for the sterilization of the lower end of a filling pipe 10 as well as of surrounding parts of a packing material tube 8. Use is made for this prupose of a connecting element 20 which connects two feed ducts 11,12 present in the filling pipe 10 to each other so that cleaning and sterilizing agent can circulate in the filling pipe. In a subsequent stage the connecting element 20 is removed so that sterilizing agent can be made to circulate also along the outside of the filling pipe 10 and in the packing material tube surrounding the filling pipe, whereupon the production of the packing containers commences.

Abstract: This process permits an inlet/outlet to be established in a liquid filled tank using an underwater diver without the necessity of draining or otherwise putting the tank out of service. The diver enters the tank at the top and places a dry pot against about the center of the back of the manhole cover. A hole is drilled in the manhole cover and a pipe nipple inserted through the hole. A flange is provided on the pipe nipple and if a gasket is not used, it is welded completely around to prevent leakage. A cap or valve is screwed onto the pipe nipple on the outside and the dry pot is removed. Various other ways of placing the pipe nipple through the wall are described. The installed nipple can be used by attaching a suction hose thereto for the purpose of removing sediments from the floor of the tank. If desired a smaller inlet/outlet installed in this manner is used to supply air for a diver working on the inside of the tank.

Abstract: A cleaning system in which an elongated object having enclosed channels can be inserted in a rotatably mounted container in a tank to coil therein for cleaning by fluids pumped through the object and into the tank.

Abstract: A method and apparatus for the realization of a leakage-free switching double seat valve allowing cleaning of seats. Said method ensures that in double seat valves comprising closing elements of which one is structurally designed as set disk and the other slide-like, there can be realized a leakage-free switching and the possibility of simultaneous cleaning of the seat surfaces of both closing elements and/or the cleaning of the seat surface of only the slide-like closing element possibly subjected to product action.

Abstract: A drive shaft mounted for rotation about its axis within a gate valve casing terminates, internally within a valve chamber, in a radial arm which couples to a valve disk. The disk seats on the valve casing and is movable between an overlying position relative to an outlet part and an angularly displaced position such that the outlet port is wholly uncovered. A valve inlet port is aligned with the shaft, on the opposite side of the radial arm and the shaft is extended by a hollow, open frame cylindrical cage which terminates in a ring rotably mounted to the valve casing about the inlet port. The cage ring is connected to the bottom of the arm in line with the shaft via multiple, circumferentially spaced, feed fins forming radial windows permitting the inlet flow to be deflected radially with the shaft dissipating the force of the incoming fluid. The feed fins purge the valve chamber when rotating during valve opening and closing.

Abstract: A plug valve which may be steam sterilized in place, without disassembly or removal from the system, is adapted for use in fermentation processes where the interior surfaces must be sterilized between batches. The plug is provided with internal steam passages which extend longitudinally of the plug and in non-intersecting relation to the through port. The plug casing, in one embodiment, is provided with an inlet for applying steam to the top of the plug for entrance into the steam passages and out the bottom of the plug and through a bottom opening in a casing. In another embodiment, steam may be applied through the bottom opening and into the plug passages, and a steam outlet is provided in the face of the plug through which steam may be extracted through one of the valve casing ports.

Abstract: A tool for removal of debris from within a transmission pipe containing gas under pressure, including, a slide tube, having an angled fitting provided at its bottom end, and generally for disposition within the transmission pipe, said slide tube extending through a reducer, that incorporates and includes therein a mounting member, such as a swivel ball, through which the slide tube locates, and has a hermetic seal therewith. The slide tube 2 at its upper end includes one or more shut-off valves, and may also incorporate a filter device, for collecting of the accumulated debris that is carried with the pressurized gas as it rapidly passes through the slide tube, after opening one or both of the shut-off valves.

Abstract: A hose reel system for a sewer and catch basin cleaner and the like has a fixed mounted hose reel and a movable hose traction wheel. The hose reel includes a drive motor which rotates the reel in a direction to wind a hose onto the reel and a clutch which permits the reel to freely rotate when the hose is payed out. The hose traction wheel may be attached to a boom movable horizontally and vertically with respect to the reel and is driven by a motor to pay out the hose and a clutch which permits the traction wheel to turn freely during rewind of the hose. A first fairlead assembly mounted to the fixed reel and a second fairlead assembly mounted to the hose traction wheel guides the hose to permit pay out and rewind when the traction wheel is not in the plane of the reel.

Abstract: The duct cleaner is formed of a nozzle conduit having connecting members at its opposite ends and spray nozzles intermediate its ends, an end conduit having connecting members at its opposite ends, and a plug member having a connecting member at one end and an eye bolt at its other end. The end conduit is adapted to have a sponge or the like fitted around its exterior for engaging the walls of a duct to be cleaned. The end conduit with its sponge is connected to a hose and to one end of the nozzle conduit and the plug member is connected to the other end of the nozzle conduit and to a rope which is used to pull the duct cleaner and hose through the duct with the spray nozzles ahead of the cleaning member while fluid from the hose is sprayed onto the interior walls of the duct by way of the spray nozzles.

Abstract: A diaphragrm valve for removal of samples from a pipeline for water of predetermined microbiological purity has a body with a liquid-receiving inlet and an outlet which can be sealed from the inlet by the central portion of a substantially flat diaphragm. The outlet and that surface of the central portion of the diaphragm which overlies the intake of the outlet or which is adjacent to the intake of the outlet are sterilized with steam or with a liquid chemical which is admitted by a conduit at an acute angle to the direction of flow of samples through the outlet. Such sterilization takes place while the diaphragm seals the outlet and prior to removal of the first sample. The body of the valve can have a second outlet which is in continuous communication with the inlet. The liquid medium rinses and sterilizes the major part of the interior of the valve, irrespective of whether the inlet branches off a pipeline or is a part of the pipeline.

Abstract: A cleaner device for cleaning the valve box or cistern which provides remote access to a valve control body of a valve in an underground pipe line, the device having achieving the cleaning by compressed air passing through a tubular body member, and having an upwardly-open basket for catching the debris stirred up by the moving air. A downwardly-opening socket member at the foot of the device, the socket member being slightly oversize as to the valve's control body, both guides the air stream to give a cleaning impingement of the walls of the valve's control body and provides the mechanical component by which the valve-operating torque is applied to the valve's control body; and at the upper end of the tubular body member a deflector disc baffles moving debris back into the valve box or cistern for causing such debris to be collected in the basket.

Abstract: A cleaning apparatus includes a liquid feeding unit, a connector detachably connected to an endoscope and a connecting unit for guiding a detergent solution fed from the feeding unit to the connector. The connector has a support plate, an air/liquid mouthpiece and a suction mouthpiece which are movably supported by the plate, and a slider supported by the plate to be movable between first and second positions. The mouthpiece has a ring-member which engages with a frange of an air/liquid cylinder of the endoscope. The mouthpiece has a ring-member engaging with a frange of a suction cylinder of the endoscope. When the slider is moved to the second position, a first holding portion and a second holding portion thereof hold the franges, in cooperation with the ring-members, by using an urging force or urging members.