Abstract: A combination of a die lubricant source, a feedtube, and a nozzle assembly, as well as a method of using the combination to cool and/or lubricate a die. The die lubricant source supplies a plurality of bursts of a metered amount of a die lubricant to a feedtube bore. The nozzle assembly includes a removable barrel having a barrel bore therethrough and a removable atomizing spray tip having a spray tip bore therethrough. A posterior end of the barrel bore communicates with the feedtube bore and an anterior end of the barrel bore communicates with the spray tip bore. The ratio of the cross-sectional area of the barrel bore divided by the cross-sectional area of the spray tip bore is not less than 2.5, and the cross-sectional area of the barrel bore is preferably not greater than the cross-sectional area of the feedtube bore.

Abstract: A device for moistening a set of nozzles for dispensing fluids in a dispensing machine has a support for the nozzles and a hollow member movable selectively along a predetermined path from a first position in which the set of nozzles is covered to a second position in which the nozzles are uncovered; in the position in which the set of nozzles is covered, the hollow member cooperates with a sealing element to define a first closed chamber; an isolation element movable selectively relative to the hollow member cooperates with the nozzle support to define at least one second closed chamber which is disposed inside the first closed chamber and in which at least one nozzle of the dispensing machine emerges.

Abstract: A nozzle for fast plating with plating solution jetting and sucking functions includes an outer cylindrical member and an inner cylindrical member, a plating solution issuing passage being defined between the outer and inner cylindrical members, and the inner space in the inner cylindrical member constituting a plating solution sucking passage. The inner cylindrical member has a front end flared portion having a forwardly flared surface acting to diffuse the solution. The outer cylindrical member has a front open end defining a gap with respect to the flared surface, the gap constituting a jetting port of the plating solution jetting passage. Plating solution supplied from a supply opening of the plating solution jetting passage is jetted from the jetting port toward a workpiece to be plated, the jetted plating solution is discharged from a rear end discharge opening of the plating solution sucking passage.

Abstract: A new precision cone-overspray protector for applying sprayed materials to precise areas. The inventive device includes a hollow hood member having a narrow end and an enlarged end, made from a sheet material having overlapped edges which are secured together to maintain the shape of the hood member, and apparatus associated with the hood member for securing the hood member around a sprayer head of a spraying device.

Abstract: A pop-up sprinkler which includes a housing, a riser in the housing movable between an extended position in which the riser extends from the housing and a retracted position in which the riser is retracted from the extended position and a pressure regulator in the riser. The pressure regulator can be constructed as a cartridge or separate unit and installed in the riser. The riser has an aperture adjacent the pressure regulator and the aperture is between first and second axially spaced seals in the extended position so as to reduce the likelihood of clogging of the aperture. A dirt tolerant wiper seal is mounted on a movable valve tube of the pressure regulator and a pressure activated seal is provided between a valve seat of the pressure regulator and the valve tube.

Abstract: A fluid dispensing tube with fluid deflection surface that attenuates accumulation of solidified sprayed fluid. The fluid deflection surfaces can be used for mechanically breaking-up a fluid to enhance sprayability and uniformity or to create a fan spray, or both. The inlet end of the fluid dispensing tube can be fluidly connected to a container of fluid.

Abstract: An apparatus is disclosed which uses a high volume low pressure air curtain in an "air chisel" to inhibit and reduce the bounceback and overspray of material sprayed on a work surface. The air chisel directs a lateral air curtain along each side of a plume of sprayed material parallel to the long axis of the plume and directed toward the contact of plume and work surface. An air chisel may be attached to a spray gun or may be mounted on a stand adjacent to the work surface. Any source of high volume low pressure air may serve to provide air to an air chisel.

Abstract: The method and apparatus of the present invention provides a more efficient and cost effective method and apparatus for applying agents to plants, crops, vegetation, and trees, while avoiding the problems associated with conventional impingement velocity tunnel sprayers. The method and apparatus of the present invention utilizes the conditions in a controlled atmosphere to deposit agents on plants and provides a device which increases the maneuverability of pesticide spray rigs.

Abstract: A spout for a fuel dispensing nozzle which includes a main channel for supplying fuel to the outflow end of the spout; a medium channel for supplying medium to a blocking mechanism of the nozzle, in which the channel is arranged internally in the spout and separated from the main channel; a cap member for closing the outflow end against an edge thereof; and a connecting mechanism which extends internally in the spout between the cap member and the other end in order to provide a coupling between the cap member and the main closing mechanism of the fuel dispensing nozzle.

Abstract: The present invention provides an improved atomization system for dispensing and atomizing a fluid product having film-forming characteristics. The atomization system includes a nozzle for atomizing the fluid product which has been formed of a reduced wettability composition including a base material and a wettability-reducing component for reducing the wettability of the base material with the fluid product. The reduced-wettability attribute ensures that the product will tend to "bead up" on the surfaces of the nozzle assembly rather than wetting or coating the surfaces. The surfaces will thus tend to repel the product, once the supply pressure driving the fluid toward the nozzle is relieved, leaving the critical nozzle surfaces substantially free of a film of product which would tend to dry and form a residue on the critical nozzle surfaces when exposed to atmospheric air.

Abstract: The present invention provides a wash arm assembly for a dishwasher which includes a molded plastic wash arm and a stainless steel cover. The plastic wash arm has a top surface, lateral surfaces, and a bottom surface and the stainless steel cover wraps over the top surface of the plastic wash arm, around the lateral surfaces of the plastic wash arm, and over a portion of the bottom surface of the plastic spray arm to hold the cover on the spray arm. The top surface of the plastic wash arm defines a series of wash jets and the stainless steel cover defines openings aligned with the wash jets so that the metal cover does not interfere with the wash jets.

Abstract: An assembly adapted for use to spray liquids toward the ground while the assembly limits the drift of such sprayed liquids. The assembly has a frame including a supported portion adapted to be mounted on a mobile unit adapted to transport the frame along the ground, and a hood support portion including a first elongate hood support member. A plurality of separate hoods each having spaced diverging opposite front and rear side walls projecting from opposite sides of a top wall are attached along the elongate hood support member with their side walls generally parallel to said elongate hood support member and depending downwardly from said top walls of said hoods. A liquid distribution system including spray nozzles within the hoods can direct liquid spray toward the ground, whereupon the top and side walls will limit the drift of such liquid spray.

Abstract: Disclosed is a fluid dispensing container and an actuator therefor that attenuates accumulation of solidified sprayed fluid.

Abstract: A high-pressure surface-washing device has a frame (6) with adjustable-height wheels (17), a spray nozzle (15, 16 and 74) on at least one rotary spray arm (10, 11, 63 and 64) on a rotary axle (9 and 47) positioned on a bottom surface of the frame (6), a fluid conveyance in the rotary axle, a pressure-control valve (4) on a handle (5) attached to the frame (6), a high-pressure fluid conveyance (7) in communication between the pressure control valve and the fluid conveyance (20 and 62) in the rotary axle, a source of fluid (2) under select pressure, and a high-pressure fluid conveyance (3) in communication between the source of fluid under select pressure and the pressure control valve. The spray nozzle on the rotary spray arm is directed downwardly at an impingement angle in relation to rotational axis of the rotary spray arm.

Abstract: The present invention relates to a spraying apparatus and a method of using the same. The spraying apparatus can be used in the spraying of herbicides or insecticides from an aircraft or from the ground. The apparatus provides a separation chamber to remove the small drop component of the spray so that the component leaving the apparatus is essentially free of small drops. Small drops have slight fallspeeds and are subject to wind drift, causing off-target deposits and potential biological impact outside the treatment areas.

Abstract: An injection type chemical sprayer (30) including interior and exterior cleaning systems. The interior cleaning system can include a rinsing nozzle (58) located within the concentrated chemical tank (52). Rinsing nozzle (58) can be selectively connected to the pressure side of a spray pump (34). The chemical rinsate can be dispensed by means of a rinsate pump (64) in combination with a rinsate nozzle (66). Following the rinsing operation, the concentrated chemical tank (52) can be reconnected to an injection pump (56), and then the concentrated chemical tank (52) can be filled with clean water which is then pumped through the injection system to completely flush it of the chemical being injected. System (30) also preferably includes an exterior cleaning system which can include a spray gun (60) selectively connected to the pressure side of the spray pump (34).

Abstract: A drift control enclosure for an agricultural sprayer comprising a plurality of elongated flexible filaments which extend downwardly from the spray bar of the sprayer towards the ground in an enclosure fashion so as to enclose the spray nozzles and the spray pattern thereof to prevent spray drift. The flexible filaments can separate to permit an obstruction to pass therethrough and can deflect to permit an obstruction to pass thereunder.

Abstract: An apparatus for mixing and spraying a catalyst with a resin onto a surface. The apparatus is provided with a restricted orifice union on the resin line running into the manifold. The union traps large plugs of resin and prevents them from entering and clogging the manifold. The union is designed so that plugs of resin may be easily removed from the resin line with only a minimum of down time.

Abstract: A self-cleaning, anti-fouling, ionizing air gun for static neutralization and particle blow-off comprises a generally tubular barrel having an open forward or nozzle end and a rearward open end for drawing air therethrough from the atmosphere. A pointed ion emitting electrode is positioned intermediate the ends of the barrel and directs ions toward the forward nozzle end while a plurality of circumferentially spaced air jets direct streams of compressed air in a conical pattern toward the apex thereof in front of the ion emitting electrode so as to induce air drawn in from the open rear end over the electrode to effect cleansing thereof thereby expelling a high velocity ionized air stream through the forward nozzle end.

Abstract: The polyurethane foam metering apparatus comprises a mixing chamber bored out in a core (3) of self-lubricating synthetic material, which core is gripped tightly in a hollow metallic cylinder detachably mounted on a support, in such a manner as to form a demountable cartridge, and compressed at right angles to feed orifices, so as to improve the seal of the valve rod (8) and to prevent infiltration of reactants into the mixing chamber when the latter is closed off by the valve rod (8).

Abstract: A spray nozzle assembly particularly adapted for directing a finely atomized slurry of hydrated lime for removing sulfur dioxide from flue gases. The nozzle assembly includes a nozzle body having a first pre-atomizing and mixing chamber into which pressurized liquid and air flow streams are directed for breaking down and pre-atomizing the liquid, an orifice plate at the downstream end of the first pre-atomization and mixing chamber for restricting the fluid flow into a second chamber defined by the orifice plate and spray tip, and a spray tip having a plurality of circumferentially spaced discharge orifices through which atomized liquid particles in the second chamber discharge. Each discharge orifice is inclined at a compound angle in order to cause the spray to discharge from the tip as a swirling annular curtain and thereby retard the build up of lime and fly ash on the tip.

Abstract: A drift control enclosure for an agricultural sprayer comprising of a plurality of elongated flexible filaments which extend downwardly from the spray bar of the sprayer towards the ground in an enclosure fashion so as to enclose the spray nozzles and the spray pattern thereof to prevent spray drift. The elongated flexible filaments not only prevent spray drift but allow obstructions to pass beneath the spray boom uninhindered, a feature not found in other agricultural sprayers.

Abstract: A fluid spraying gun having a disk-shaped shield positioned adjacent to a spray of fluid at an adjustable angle. The shield has a sharp edge that can roll on a surface for creating a sharp border between an area exposed to spray and an area concealed from spray. The shield also has a rounded rim on a face distal to the spray for sliding along a surface transverse to the surface the edge rolls on, allowing the formation of a sharp border along a corner between the surfaces or the positioning of the spray a set distance from the transversely oriented wall. A lip rings a face adjacent the spray for catching excess spray prior to the edge, a tip of the lip aligned between an orifice where the spray originates and the edge. The shield is connected to the gun via a shaft which can pivot about an axis near the orifice, such that the tip and the edge remain aligned with the orifice at a variety of angles.

Abstract: A spray apparatus and method is disclosed for spraying heavy viscous material. The apparatus includes a pressure tank containing a supply of the material. Pressurized air is supplied to the upper end of the tank for forcing the material down through an outlet port at the tank's lower end and into a supply hose leading to a spray gun. A follower plate floating on the upper surface of the material carries a stopper cone which is aligned with the outlet port. As the material level nears the lower end of the tank, the follower plate moves the stopper cone against the outlet port to immediately and positively shut material flow off. A cleaning tool is provided and includes an air valve in combination with a sponge adapted for fitting into the hose. The sponge is pushed by air pressure through the hose for a first cleaning pass, and the air flow is controlled by a hand-operated air valve.

Abstract: An arrangement for affecting the motions of gasborne, especially air-borne, particles at a movable device, (5,6) comprises an enclosure (12, 22) which encloses said device (5,6) and is connected to a means (16, 28) for supplying or discharging a gas, such as air, to and, respectively, from said enclosure in such an amount that a positive pressure or a negative pressure is maintained therein. Moreover, the enclosure (12, 22) is made of a flexible, gas-permeable material which provides a substantially laminar gas flow downstream of the enclosure and which does not generate particles.

Abstract: A sanitary bidet conversion kit for conventional water closet flush toilets is disclosed. The kit includes a T-shaped pipe to be connected the toilet tank water supply, a nozzle mounted in an upward direction within the toilet bowl and a hose including a flow control valve connected between the T-shaped pipe and nozzle. The nozzle includes a cover pivotally mounted thereto which moves under the influence of gravity to cover the nozzle outlet when water flow through the nozzle is stopped.

Abstract: An air brush is shown and described having separate gas delivery and media delivery portions whereby different media delivery portions may be provided with alternate media or media colors and selectively mounted upon the gas delivery portion. The media delivery portion includes an airless media sack which collapses upon delivery of media from the media delivery portion. By separating the gas delivery and media portions in the manner of the present invention, a user can quickly switch between media or media color without an intermediate cleaning step. The air brush of the present invention further provides freedom of spray direction including horizontal and vertical spraying. Both artistic and medical uses of the air brush are illustrated.

Abstract: The present invention relates to a spraying apparatus and a method of using the same. The spraying apparatus can be used in the spraying of herbicides or insecticides from an aircraft or from the ground. The apparatus provides separation means to remove the small drop component of the spray so that the component leaving the apparatus is essentially free of small drops. Small drops have slight fallspeeds and are subject to wind drift, causing off-target deposits and potential biological impact outside the treatment areas.

Abstract: In a sprinkler head comprising a sprinkler body (1) and a sprinkler base (4), the nozzle wall of the sprinkler base (4) is the fixed supporting plate (8) of a rubber-elastic nozzle plate (11) resting on it. The nozzle plate (11) comprises a plurality of elastic nozzle projections (12) formed on it which engage in receiving bore holes (9) of the supporting plate (8). The axial length of the elastic nozzle projections (12) in relation to that of the receiving bore holes (9) is such that their elastically deformable ends always project beyond the outer surface (14) of the supporting plate (8). Furring of the nozzle projections can easily be removed by exerting a slight external force on the elastically deformable ends. Nevertheless, the spray-forming outlet ends of the nozzle projections (12) are so thick-walled and of such material quality that they withstand ordinary water pressures and therefore have good spray guidance properties.

Abstract: A flush sprinkler has a sprinkler unit raisable and lowerable in hydraulic manner in a shaft and, several nozzle units, which, as required, can be switched into a sprinkling state with an upper nozzle selecting handle and whose nozzle jets can be modified independently by a jet spreading member adjustable with an associated jet adjusting handle. There are also rings for varying a spray spreading angle as a function of size and position. The handles are raisable and lowerable with the sprinkler unit and therefore easily accessible. For cleaning the bearing of the sprinkler unit, an automatically valve-controlled flushing device is provided. For the reliable draining of the sprinkler, a drain valve is provided directly in the water flow and its body is clipped into a valve bore of the shaft.

Abstract: Method and system are provided for cleaning a paint supply line and changing paint colors by inserting and propelling a termination piston or slug having an outer diameter which forms a sliding fit within the supply line to wipe paint off the interior walls of the supply line. Preferably, the supply line is elastic and the termination piston squeegees the paint off the interior walls. In order to more fully clean the supply line prior to changing paint colors, a predetermined amount of cleaning fluid such as a solvent is injected into the supply line behind the termination piston from a common passage of a manifold. A leading piston or slug is then inserted immediately ahead of a new paint color in the supply line. The pistons may be disposable or may be reused by recirculating them by means of shuttle assemblies and a return line. The manifold is fitted with various valves to selectively supply pressurized air, solvent and two or more paint colors to the supply line.

Abstract: A fire or explosion suppression system provided with a source of pressurized suppressant and an apertured release suppressant nozzle which extends into the area protected by the system is provided with a cover unit which prevents the nozzle from becoming clogged or impeded by solid materials present in the protected zone. The cover unit that envelops the nozzle is of elastomeric material and has four internal grooves defining lines of weakness which present a cross-pattern. Upon release of the suppressant, the cover unit ruptures along the lines of weakness whereby the petal-shaped areas of the unit defined by the grooves open up for free flow of suppressant therepast.

Abstract: A nozzle is disclosed which has a cylindrical nozzle main body. A nozzle tip of the nozzle comprises a plurality of members formed by dividing an approximately cylindrical member in the axial direction thereof and is accommodated in the interior of the nozzle main body. A spring is provided between a spring receiving section of the nozzle tip and a wall positioned on a forward side of the nozzle main body. At least one of a peripheral surface of a discharge section of the nozzle tip and an inner surface of a tip engaging opening of the nozzle main body is tapered. A self-cleaning operation is performed when the atomization pressure is reduced, because the spring urges the nozzle tip toward a rearward side of the nozzle main body.

Abstract: A coating apparatus includes: a block-shaped die main body; upper and lower nozzle parts projecting from the die main body to form a nozzle, forward end portions of the upper and lower nozzle parts being substantially cylindrical and each of the portions having a constant curvature, the forward end portion of the upper nozzle part serving as a guide, a discharge opening having a slit-shaped sectional configuration being provided in the guide, a bottom surface of which is lower than a surface of the guide; a coating material reservoir, provided in the die main body, communicating with the discharge opening; a groove formed between the upper and lower nozzle parts, through which the discharge opening communicates with the reservoir; a partitioning plate mounted widthwise substantially entirely on one of the forward end portions of the upper and lower nozzle parts so that the partitioning plate is movable through the nozzle to open the groove; a rotary block pivotably supporting the die main body for rotation th

Abstract: The outer surface of a turbine-housing (2) of an air-driven rotary atomizer for coating workpieces electrostatically is surrounded by a cover (5) made of a three-dimensional material permeable to air, whereby the formation of condensation-water upon the turbine-housing can be avoided.

Abstract: A cylindrical body is provided over an ultrasonic flux nozzle. The cylindrical body contains a cavity inside generating a vacuum when the flux nozzle in in operation. Additionally, the portion of the top surface of the cylindrical body that is adjacent to the output of the flux nozzle has passageways for drawing off excess flux into the cavity. As a result, flux that exits the nozzle in an atomized vapor form is limited to a fine stream, thereby allowing the amount of flux to be deposited on a desired area to be precisely controlled.

Abstract: A gear driven rotary sprinkler comprising a base defining a liquid inlet, a sprinkler head which is rotatable about a rotation axis fixed in the base, liquid driven gear apparatus for driving the sprinkler head in rotation about the rotation axis, clutch apparatus for selectably decoupling the sprinkler head from the gear apparatus upon forced rotation of the sprinkler head, apparatus for limiting the speed of rotation of the sprinkler head under high pressure and/or high volume conditions, apparatus for selectably limiting the azimuth of rotation including an over-center spring mechanism, and a liquid flow pathway from the liquid inlet to the sprinkler head including suctioning apertures operative to draw sediment from the liquid driven gear apparatus by venturi action and to flush it from the sprinkler.

Abstract: Apparatus for washing the disc portions of an electrical insulator includes first and second mating housing portions for positioning about the discs and fluid lines for delivering a cleansing fluid through the housing portions for cleaning the surface of the discs. The two mating housing portions preferably define a basin for collecting the cleansing fluid and facilitating removal of the cleansing fluid after use. A support assembly including a robotic arm positions the first and second mating housing portions about the discs of the electrical insulator for cleaning. A cleaning liquid such as water or freon or a cleaning gas such as air or steam is applied through the mating housing portions for cleaning the surface of the discs. Following the cleaning, a surface-enhancing material such as a silicone coating can be applied to the surface of the insulator for protection from future contamination and make the insulator more resistant to electrical or mechanical degradation.

Abstract: A gear driven rotary sprinkler comprising a base defining a liquid inlet, a sprinkler head which is rotatable about a rotation axis fixed in the base, liquid driven gear apparatus for driving the sprinkler head in rotation about the rotation axis, clutch apparatus for selectably decoupling the sprinkler head from the gear apparatus upon forced rotation of the sprinkler head, apparatus for limiting the speed of rotation of the sprinkler head under high pressure and/or high volume conditions, apparatus for selectably limiting the azimuth of rotation including an over-center spring mechanism, and a liquid flow pathway from the liquid inlet to the sprinkler head including suctioning apertures operative to draw sediment from the liquid driven gear apparatus by venturi action and to flush it from the sprinkler.

Abstract: In an electrostatic spray coating apparatus (10), liquid coating material is applied to a workpart inside of a spray booth (12). Alternating flows of liquid coating material, liquid solvent and air are conducted through various internal flow passages in a conduit (14) inside the spray booth. An electronic differentiator (24) is positioned adjacent a predetermined location along the conduit (14) and energized from an electrical source disposed outside of the spray booth (12) to differentiate between liquid and gas in the internal flow passage for nonintrusively detecting when the head of liquid flow reaches the predetermined location along the internal flow passage. This is accomplished by an electromagnetic field extending into the flow passage and sensing the changes in the electromagnetic field resulting from dielectric differences between liquid and gas in the flow passage.

Abstract: A salt truck including a salt distributing spinner device mounted on a bed of the truck and receiving salt from a bin carried on the bed. A guide support mounted on the bed supports a staff with an end portion of the staff etending from the guide support opposite the salt distributing device. A flexible panel attached to the end portion of the staff extends downwardly from the staff into the path of salt projected sidewise of the direction of truck advance to catch and stop travel of the salt sidewise of the direction of truck advance.

Abstract: The conventional spray shield for use on crop sprayers includes a large cover for the entire spray boom. The cover extends downwardly to the top of the crop being sprayed, and consequently impedes access to the spray nozzles and hides the spray pattern. Thus, the operator of the sprayer is not aware of blocked nozzles. A solution to the problem is to provide individual spray hoods over each nozzle, the hoods having essentially the same shape as the spray produced by the nozzle, i.e., conical with an elliptical horizontal cross section at the discharge end. The hoods are sufficiently short that they terminate above a crop in the use position, so that the sprays are visible and the nozzles are readily accessible.

Abstract: An electromagnetic fuel injector has a raised seat with which the needle tip coacts to open and close the injector as the injector is operated. The raised seat has an annular transverse seating surface surrounding a hole through the seat member. The hole through the seat member has a frusto-conically shaped surface immediately contiguous the annular seating surface, and the tip of the injector needle is conically shaped. The cone angle of the needle tip is greater than the cone angle of the frusto-conically shaped hole in the seat member, and the needle tip and the annular transverse surface of the seat are almost parallel so that the needle tip seats on the annular transverse surface of the seat at the rim of the frusto-conically shaped hole when the injector closes. The seat is softer than the needle so that the seal is initially good and becomes better as the injector is operated.

Abstract: A liner system for a spray gun including three liners, one of which resides within the interior of a spray gun reservoir, a second of which rides on an outside of the reservoir, a third of which is interposed between the reservoir and attached to a spray head via bayonet hook and has a free end which serves as a shield when placed over the spray head, just upstream from the nozzle. These liners minimize down time when cleaning spray guns and reduce the amount of solvent required.

Abstract: A spray rinsing apparatus carried by a mobile chemical spray apparatus which includes a pair of flexible rinse water storage vessels shaped and adapted to be supported in draped position from the top of a chemical reservoir tank and the sides of the tank. A gasoline engine driven pump is connected to withdraw rinse water from the flexible vessels. The rinse water is pumped at high pressure into a built-in spray head assembly inside the chemical tank and also through a jet spray gun to clean the exterior of the chemical spray apparatus. The system is capable of confining the chemical spray chemicals to the application job site and thus avoid contamination anywhere else.

Abstract: A fuel injector for supplying liquid fuel to an air inlet manifold of a spark ignition engine has a fuel-inlet, an outlet defined in a tubular component mounted in a tubular part of the injector body, and at least one orifice formed in a valve seat member downstream of a valve member. The tubular component is spaced downstream from the valve seat member. An air circulation duct is defined between the tubular component and tubular part, so that spray of fuel flowing through the outlet draws air through the duct to minimize dribble of fuel from the injector.

Abstract: A pop-up irrigation sprinkler having a tubular pressure regulator mounted for movement in the pop-up stem and a funnel shaped grit protector shroud mounted within the stem above the pressure regulator to direct deleterious particulate matter downwardly through the pressure regulator.

Abstract: A device designed for being adapted to surround a duct formed with one or several orifices operable for feeding a fluid to an apparatus, such as a reactor, used for the treatment of liquids, notably water, and including a resiliently deformable membrane, also formed with one or several orifices communicating with that or those of the fluid feeding duct, characterized in that it is made of two half shells threaded and clamped onto the fluid inlet duct, one of which having a housing for the resiliently deformable membrane and an orifice for the distribution of the fluid to the apparatus.

Abstract: The invention relates to an ejector to be placed in rooms which are inaccible to human beings. It comprises a casing with a diffuser bore, a head chamber, and a space for a working fluid including a lateral working fluid connection. The working fluid nozzle comprises a working fluid chamber which is connected through bores with the working fluid space and, inside the casing, it seals the head chamber from the working fluid space. The nozzle of the working fluid chamber opens into the head chamber and faces the diffuser bore. The invention is characterized in that the ends of the casing and of the working fluid nozzle each are embodied as a radial flange which flanges are held together by bolts adapted to be operated by a manipulator. At the end of the working fluid nozzle flange there is a handle which is operable by a manipulator to pull the working fluid nozzle out of the casing and to reintroduce it, respectively.

Abstract: A novel lawn sprinkler comprises a substantially flat base of molded plastic with a hollow plastic, inverted cup-shaped housing supported thereon. The cup-shaped housing has an inlet pipe molded integrally therewith with a fixed female threaded fitting for connection to a garden hose and opening tangentially into the interior thereof. The cup-shaped housing has cylindrical side walls and a flat top wall with curved peripheral internal top edge. The top wall has a central spray opening which is small at the inside and tapers outwardly at the top surface of the top wall. The cup-shaped housing fits into and is cemented in place in a groove molded in the upper surface of the flat base and has a projection which fits a recess in the base to orient the housing on said base.