Abstract: The hand held shower apparatus of this invention includes a shower body having a hollow handle connectable at one end to a source of water and a shower head, water regulating means for regulating the supplied water into two different water streams, one with a showering effect and the other with a massaging effect, and a cap member having a perforated bottom surface with two groups of holes for the two water streams. The hollow handle is constructed in such a way that it can be extended by pulling it away from the shower head. The shower apparatus also has a shower utensil, such as a shower brush, connected with the cap member in such a way that the shower utensil moves up or down when rotated clockwise or counterclockwise with respect to the cap member. Construction of the shower apparatus has been made simple so that it can be assembled or disassembled with ease. Other embodiments of the shower utensil are also presented.

Abstract: A spray head for a fluid dispenser comprises a connecting duct for sealingly receiving a delivery tube stub of an aerosol valve; a spray orifice; a chamber connecting the connecting duct and the orifice; a piston member disposed in the chamber and presenting a needle member cooperating with the orifice; and a spring urging the piston member to the orifice. The orifice is sealed by the end of the needle member in an inoperative position, and the piston member is arranged to move against the force exerted by the spring under the influence of an elevated pressure prevailing in the chamber, whereby the orifice is cleared by the needle member. To provide for improved atomization, according to the invention, the rear face of the piston member, which faces away from the needle member, defines a closed space which through a channel is in communication with a point located near the spray orifice for the injection of air from the closed space into the product stream to be sprayed through the spray orifice.

Abstract: A potentially disposable, low cost spray tip to be connected to a conventional hollow caulking tube which is loaded with a supply of relatively thick, viscous material, with or without solid particulate matter in suspension, that is to be controllably sprayed onto a desired surface (e.g. drywall). The spray tip includes a material sleeve, which is fixedly attached to the spout of the caulking tube to channel material therefrom, and an air stem, which is attached to an air source to channel a supply of air under pressure. In operation, the relatively thick, viscous material is moved into the air stream, and a mixture of air and material is uniformly and continuously sprayed through an exit orifice in the spray tip to efficiently spray the surface.

Abstract: The invention comprises a self-cleaning injection system for injecting foamable compositions into packaging applications. The system comprises an injection nozzle having an opening in one end from which mixed foam precursors which form foamable compositions may exit. The one end comprises a tip assembly which is porous to gases and to certain liquids, but which is impermeable to other materials such as the foamable compositions which may otherwise exit the housing only through said opening. A pump assembly pumps cleaning solvent from a solvent container to the injection nozzle while maintaining a constant delivery of air or a mixture of air and solvent to the injection nozzle. The pump assembly comprises a solvent container and an air compressor for sending air to the solvent container and for sending a mixture of solvent and air from the solvent container to said injection nozzle.

Abstract: A shower head contains two shower devices, which can be alternately operated with the aid of a changeover device. One shower device contains a row of shower holes. On switching from the first to the second shower device, a pin is inserted in each shower hole and has approximately the same diameter as the shower hole. Thus, during each changeover, there is a cleaning of the shower hole from the inside, which leads to a removal of deposits and contamination.

Abstract: A method of, and system for, spraying is provided in which voltages generated by the passage of pressurized medium through a spray nozzle is monitored. The generated voltage has characteristic patterns. Monitoring the variations in these patterns or the exceeding of predetermined voltage limits enable close control to be monitored over the spraying operation and for remedial action to be taken in due time.

Abstract: Cleaning process for the gas nozzles of a welding torch in which the nozzle is guided to a processing position in which it is scraped clean by rotating blades and in which it is then sprayed with an antiadhesive agent after the blades are lowered.

Abstract: A fluid atomizer or "air mist" nozzle or valve of this invention has an elongated nozzle body provided with a frontal exit port, a needle valve coaxially moveable therein and normally biased against a spring means so that its outlet end is just upstream of the nozzle exit port. The nozzle body is connected to a source of both water and air, as in the prior art. In this invention, the needle valve outlet position is controlled, vis-a-vis the nozzle body exit port, from the front of the fluid nozzle by providing a frontal control means for moving the nozzle body with respect to a fixed-in-place needle valve. The frontal control means is provided with both a rotatable and an axial motion and comprises preferably a control knob or ring threadably engaging the nozzle body near the frontal end thereof. The control knob is, in turn, mounted within a fixed flange plate, having a rearwardly extending cylindrical bore, for slideable axial movement within said cylindrical bore.

Abstract: A blast nozzle for blowing-off liquids from surfaces, for example from sheet surfaces, has a tubular body, on the outer surface of which converging plate-like lips are provided which extend generally tangentially to form a blow-off slit which runs in an axially-parallel manner to the body. A plate-form cleaning element which may be moved relative to the blow-off slit is located in the body. The cleaning element is attached to a transmission which is adjusted by a drive provided outside the body. According to one embodiment, the cleaning element is a sheet which extends over practically the entire length of the blow-off slit and which may be selectively pushed into, and through, the blow-off slit, whereas according to another embodiment, it is a tongue which lies in the blow-off slit and which may be moved along that slit.

Abstract: Apparatus for dispensing a mixture of mutually reactive liquids, such as a resin and its hardener, comprises a gun head having a bore opening therethrough to define a mixing chamber. The mutually reactive liquids are fed along separate paths through the head and into the bore to mix in the bore and be dispensed through one end of the bore. A valving rod is reciprocable in the bore, between a forward position in which the valving rod seals the liquid inlets from each other and occupies the mixing chamber, and a rearward position in which the valving rod opens the mixing chamber and permits the flow of liquids into the mixing chamber. One of the liquids is fed along the outer surface of the valving rod in the retracted position of the valving rod and along most of the length of the valving rod which was disposed in the mixing chamber in the forward position of the valving rod. In this way, mixed liquids are washed from the valving rod by that one component, in the rearward position of the valving rod.

Abstract: A plural component flushless spray gun has a fluid outlet orifice defined by two opposed inlet orifices with a thin blade interposed therebetween. The blade prevents fluidic material exiting each inlet orifice from flowing directly into the other, and is slotted at its forward end to define a very small volume chamber into which the components flow for mixing prior to being emitted through the outlet orifice defined at the forward end of the slot. Because the chamber has a very small volume, the components are intimately mixed for better polymerization, and only a very small quantity of reactive components are mixed within the gun immediately behind the outlet orifice. Consequently, should the mixed components harden within the gun, only a limited amount of material is involved and the blockage may readily be removed simply by triggering the gun on to eject the blockage through the outlet orifice.

Abstract: A plural component dispensing nozzle having internal passages for the introduction of at least two components for mixing and dispensing, and having a one piece mixing chamber with impingement orifices axially spaced along the chamber, and having formed as a part thereof sealing flanges to develop the fluid flow passages into the mixing chamber, and to provide an isolation seal between the plural components as well as fluid seals between the flow passages and the nozzle.

Abstract: Apparatus for dispensing a mixture of mutually reactive liquids, such as a hardenable plastic foam, comprises a metal housing with a plastic mixing chamber disposed in the housing and having a bore therethrough in which a purging rod reciprocates to clean reactive mixture from the bore. The reactive liquids are separately introduced into the bore through the mixing chamber via valve assemblies whose metal housings extend through the plastic mixing chamber and terminate at the bore. The purging rod retracts rearwardly into a scraper that is immediately behind the inlet openings for the liquids, the scraper being disposed in a recess in the rear of the plastic mixing chamber. The plastic mixing chamber is compressed rearwardly, so that it seals against the valve housings and the scraper. Also, the valve housings have a crush fit with the plastic of the mixing chamber, to augment the seal.

Abstract: Apparatus for dispensing material in metered amounts and without clogging includes a body having a material discharge orifice and a discharge valve seat, a hollow valve spindle engageable with the seat for shutting off the flow of material through the orifice, the spindle being retractable against the force of the return spring for opening the orifice to permit flow of material therethrough. A jet of air is discharged through the hollow valve spindle, when the flow of material through the discharge orifice is shut off for removing any material remaining at the discharge orifice. The spindle may project through the orifice, when the flow of material therethrough is shut off, for removing any residual material from the wall of the discharge orifice.

Abstract: A choke pin nozzle for diesel engines in which the choke pin is arranged on a nozzle needle. The nozzle needle is axially guided in a fitted bore in a nozzle body and is braced, through a separate spring plate, on a helicoidal compression spring disposed in a spring chamber or cavity of the nozzle. The spring plate is formed as a component of an intermediate piston which is connected on the nozzle side and guided axially with a seal in a portion of the nozzle. An escape or discharge bore is provided in the intermediate nozzle with the bore opening into the spring cavity. The piston is of a smaller diameter than the nozzle needle. The intermediate piston includes a bearing face which is cooperable with an upper sealing surface of the nozzle needle. A guide bore of the intermediate piston is widened in a stroke zone of the bearing face at least to a diameter of the fitted bore in which the nozzle needle is axially guided.

Abstract: An injection valve which serves as part of a fuel injection system for internal combustion engines for the purpose of injecting fuel. The injection valve comprises a nozzle body having a valve seat which cooperates with a nozzle needle, which has a needle tip arranged to protrude through an ejection opening. The needle tip and the nozzle needle are embodied as independent parts firmly connected with one another. The ejection opening is embodied in a disc, which is firmly connected with the nozzle body. In order to prevent constriction of the ejection opening during operation as a result of corrosion, the needle tip and disc are manufactured of corrosion-resistant material.

Abstract: A mixing head for a high velocity reaction injection apparatus for mixing and dispensing two or more liquid components. The mixing head includes a mixing chamber with two or more inlets for the separate components and an outlet for dispensing the mixed components, and an injection housing for injecting each component through a corresponding inlet. Component flow is directed through a flow accelerating passage in the injection housing prior to injection into the mixing chamber, for imparting a pressure drop in the component on the downstream side of the passage, and means are provided for selectively blocking the inlets for terminating the dispensing of the mixed components and thereby increasing the component pressure in the injection housing downstream of the passage.

Abstract: An improved camp lantern comprising a spool fuel/air valve with OFF, START and RUN modes of operation is described. The spool valve is contained within a cylindrical valve chamber having fuel and air inlets and an outlet port leading to the lantern generator. The spool valve shaft also comprises a ramp contacting a cam follower for driving a rod and orifice cleaning needle. The needle enters and clears the generator orifice when the valve is in the OFF position. Thus, operating the valve in normal use also automatically clears the generator orifice. In addition to the operating convenience of this valve assembly, the parts count is low and the parts are easily machinable, making this lantern valve assembly reliable and economically producable in commercial quantities.

Abstract: A nozzle comprises three tubes enclosed by a casing and forming a longitudinally extending partition therein, one tube forming a central passage through the casing and communicating near the mouth of the nozzle with each of the other two tubes.

Abstract: A mixing device for mixing together multi-component plastics materials, for example polyurethane, comprises a mixing chamber into which supply ducts for the components lead and in which a piston is reciprocable between a retracted position in which the supply ducts are in communication with the mixing chamber and a forward position in which the supply ducts are shut off from the mixing chamber. The piston is provided with an axial bore through it connected to a supply of air under pressure to enable air to be supplied into the mixing chamber together with the components for producing plastic foam such as foamed polyurethane.

Abstract: Apparatus for making and dispensing two liquids, such as organic resins and polyisocyanates which react to form a polyurethane foam. The apparatus comprises a dispensing gun including a mixing chamber having two liquid entry ports in a non-aligned relationship with each other. One of the entry ports is positioned forward or upstream from the other. A reciprocally mounted valving rod has an extended position for closing the ports and a retracted-position for opening the ports and permitting liquid flow into the mixing chamber.

Abstract: An automatic gravity-actuated plant watering system receives quantities of water from a supply, collects a predetermined amount, discharges and distributes the same whenever the collected quantities of water reach the predetermined amount. Metering means are provided to regulate the quantity of water flow per unit time, and gravity-actuated cleaning means are used to prevent contaminants from obstructing the fluid flow.

Abstract: A nozzle for use with a rotary kiln of the type used for reducing ore, such as iron ore, to a lower state of oxidation. The nozzle projects in a generally radial direction through the kiln shell to inject fluid into the interior of the rotary kiln. The nozzle comprises a gas passage for admitting a reductant gaseous fluid such as natural gas (methane) or an oxidizing fluid such as air into the kiln at appropriate times in the cycle of rotation of the kiln. The nozzle also includes a central oil tube slidably adjustably mounted in a sleeve which extends to the nozzle tip. The gas passage through the nozzle forms a hollow chamber around the sleeve in which the oil tube is enclosed, whereby the gas passing through the hollow chamber provides a cooling action on the oil tube and on the nozzle tip.

Abstract: Apparatus for mixing and dispensing two liquids such as organic resins and polyisocyanates which react to form a polyurethane foam. The apparatus comprises a dispensing gun and related equipment and includes a reciprocally mounted valving rod in the gun, which valving rod is circular at its ends and flattened intermediate such ends. In its retracted position, the valving rod is bathed in a liquid which acts as a cleansing agent therefor.