Abstract: A method for manufacturing a golf ball having a non-uniform dot pattern is provided. Firstly, a semi-finished product of a golf ball is provided, which includes a ball body and a base layer covering an outer surface of the ball body. After that, the semi-finished product of the golf ball is rotated at a predetermined rotation speed, and a color paint is applied to the semi-finished product of the golf ball in a spraying manner from each of an upper position and a lower position.

Abstract: An integral, discrete, drip irrigation emitter that comprises means for facilitating spreading of its water exit “pool” U configured, in cross section, “legs”, so that after affixing the drip emitter onto the inner wall surface of the hose, and following water pressure increase within the hose, an elastic movement of a sector of the hose's wall that is framed and delineated as a consequence of affixing the circumferential rim of the exit pool onto the inner wall of the hose, will take place onto opening a water outlet opening, and from the time the water pressure in the hose decreases, closing of the water outlet opening would occur, and a drip irrigation hose embedding at least one such emitter in it, and a general method for opening and closing water outlet openings in such hose, wherein the opening and closing is performed in accordance with and in correlation to the water pressure prevailing in the hose.

Abstract: An emitter (120) has, in a water intake part thereof, a water intake amount regulating part for preventing low-pressure liquid from flowing in. The water intake amount regulating part has a valve body (214) and a securing part (215). When the pressure of the liquid meant to flow into the emitter (120) is less than a set value, the valve body (214) does not move with the securing part (215), preventing the liquid from flowing into the emitter (120). When the pressure of the liquid is equal to or greater than the set value, the valve body (214) bends downstream to open the flow channel for the liquid.

Abstract: One variation of a showerhead includes: a body defining a fluid circuit, a first region on a ventral side of the body, and a second region adjacent the first region on the ventral side of the body; a set of hollow cone nozzles distributed within the first region, fluidly coupled to the fluid circuit, and discharging sprays of fluid droplets within a first size range; a set of flat fan nozzles arranged within the second region, fluidly coupled to the fluid circuit, and discharging sprays of fluid droplets within a second size range; and a set of orifices fluidly coupled to the fluid circuit and discharging fluid drops between sprays discharged from the set of hollow cone nozzles and sprays discharged from the flat fan nozzles, fluid drops discharged from the set of orifices within a third size range exceeding the first size range and the second size range.

Abstract: The invention relates to a control cone for control valves, in particular angle control valves, for critical operating states resulting from cavitation or flashing of abruptly vaporizing and erosive media, the control valve comprising a valve seat (2) and a valve stem (3) with a conical valve head (4) guided longitudinally movably therein. Starting from the rear, tapered end of the conical face (6) of the valve head (4), on the front portion adjacent thereto of the valve stem (3), a plurality of coaxially extending ribs (5) is arranged on the valve stem (3).

Abstract: A shower device and a faceplate assembly for a shower device. The faceplate assembly may include a faceplate having a front surface and a rear surface, a plurality of apertures being defined between the front surface and the rear surface, the faceplate being at least partially formed of a transparent material proximate the front surface, and an opaque material located proximate the rear surface. A pattern may be formed from facets, adjacent facets meeting at an intersection, at least one of the plurality of apertures being positioned at an intersection. A shower device may include a nozzle plate having a surface and including a plurality of nozzles for discharging water, at least one of the plurality of nozzles having a barb; and a faceplate snap-fit to the nozzle plate by the barb.

Abstract: A flow adjustable bubble aerator is formed by a water tank, an outer casing, a rear tank, an adjustment assembly, a rear seat, a ball-shaped connector and a joint seat. The adjustment assembly includes an upper fixing plate, a lower plate base and an adjustment bolt. A bottom of the adjustment bolt is provided with a tool operation part, such that a tool can be used to adjust the discharge capacity outside the bubble aerator, thereby complying with the requirements of water saving and water usage.

Abstract: Systems and methods for fluidizing an abrasive particulate material for an abrasive water jet are disclosed herein. In one embodiment, the abrasive material is delivered to a metering orifice in a distributor. Pressurized pulses of air can be directed around a circumference of the distributor to at least partially fluidize the particulate material to facilitate the material passing through the metering orifice. From the metering orifice, the abrasive particulate material is entrained in a water jet for a cutting procedure or other suitable application.

Abstract: The invention described herein is a device for dripping a tissue sealant and/or adhesive that comprises a) first and second barrels or syringes that contain first and second biocomponents that are disposed between proximal and distal ends; b) a plunger in each barrel and c) a drip tip comprising i) a support having distal and proximal ends and at least two fluid passageways from the distal to the proximal end that are in fluid communication with one of the barrels of the dispensing device on the proximal end; and ii) an endcap that fits over the support having at least two flexible hinges. The present invention is also directed to an assembly for mixing and drip dispensing two reactive biologic components as tissue sealant and/or hemostatic agent and to methods for delivering biologic components to achieve hemostasis and/or tissue sealant by drip dispensing from the device described above.

Abstract: A spraying device for introducing a fluid into the working chamber of a construction machine for processing ground or road surfaces comprises at least one outlet nozzle by which the fluid is introduced into the working chamber, a line system by which the fluid is conveyed to the at least one outlet nozzle, and a control unit by which the fluid supply to the outlet nozzle is controllable. The present invention further relates to a construction machine for processing ground or road surfaces, especially a milling machine for milling off road or ground surfaces, a stabilizer for stabilizing ground of low bearing capacity and a recycler for repairing pavements in need of repair, comprising such a spraying device, and a method for operating a working device of such a construction machine.

Abstract: A mounting unit (2) for fastening an injection member to an exhaust gas tract has a retaining region (12) for receiving the injection member, and an edge region (28). At least one opening (30) for receiving a fastening element is provided in the edge region (28). The mounting unit (2) is designed in such a manner that there is an air gap (13) between the fastening element and the retaining region (12) when the mounting unit (2) is fastened to the exhaust gas tract by the fastening element.

Abstract: An exhaust gas treatment device for a diesel engine is capable of smoothly starting the generation of a combustible gas and is provided with a small combustible gas generator. A core material is fitted in the center portion of an annular wall to form an air-fuel mixing chamber between the inner peripheral surface of the annular wall and the outer peripheral surface of the core material. An air-fuel mixture gas in the air-fuel mixing chamber is adapted to be supplied from the end of the air-fuel mixing chamber to a combustible gas generating catalyst to a portion near the center thereof. A heater is used as the core material, the heat dissipating outer peripheral surface of the heater is exposed to the air-fuel mixing chamber. Heat is dissipated directly from the heat dissipating outer peripheral surface of the heater to the air-fuel mixing chamber when starting the generation of the combustible gas.

Abstract: A spray nozzle assembly includes a pressure dependent variable spray orifice and an internal chamber which is at least partially bound by a flexibly deformable sidewall. At its distal end, the sidewall terminates at a distal face defining the spray orifice extending therethrough. A metering member extends distally from the internal chamber and through at least a portion of the spray orifice. As the pressure of a liquid supplied to the internal chamber by a liquid supply pathway varies, the flexibly deformable sidewall expands or contracts in response thereto. As the sidewall expands and contracts, the distal face moves relative to the metering member to change the effective size of the spray orifice.

Abstract: A spray tip assembly capable of self-clearing is provided. The spray tip assembly includes a distal end including an outlet. The outlet defines at least a first configuration during a first condition and at least a second configuration during a second condition. The distal end may be configured to at least one of flex and expand such that the outlet changes from the first configuration to the second configuration.

Abstract: A spray nozzle assembly includes a pressure dependent variable spray orifice and an internal chamber which is at least partially bound by a flexibly deformable sidewall. At its distal end, the sidewall terminates at a distal face defining the spray orifice extending therethrough. A metering member extends distally from the internal chamber and through at least a portion of the spray orifice. As the pressure of a liquid supplied to the internal chamber by a liquid supply pathway varies, the flexibly deformable sidewall expands or contracts in response thereto. As the sidewall expands and contracts, the distal face moves relative to the metering member to change the effective size of the spray orifice.

Abstract: The emitter with potential of self cleaning of the water inlet filter, has incorporated filter in the inlet of water that consists of openings (2) with potential of bending of elements (1, Ia, 9) that create them if particular pressure is exercised from the one side of their surface. In case of complete blocking of the openings (2) of elements (1, Ia, 9) from foreign bodies that are transferred by water, a difference of pressure is developed between the two surfaces of these elements. This difference of pressure exercises forces and moments that bend or twist specific points of elements (1, Ia, 9) and as a consequence the continuity in the layer of foreign bodies that covers the filter is disturbed and interrupted. These forces are exercised constantly until the above mentioned difference of pressure is eliminated. In most systems, the deflection sag is controlled and limited by terminal limits (11).

Abstract: Cellulosic based cores used in manufacture of towel and tissue products can be effectively stripped of residual product with little damage to the core using a roll stripping air knife with a longitudinal air passageway having both primary discharge passages and interconnected auxiliary orifices, the auxiliary orifices are directed laterally away from the primary discharge direction and connect with a longitudinal exterior channel configured such that air flows inwardly through the auxiliary orifices when pressurized air is supplied to longitudinal air passageway and the primary discharge passages are unobstructed but outwardly when the primary discharge passages are obstructed so that the pressure achievable when the primary discharge passages are obstructed is within safety limits.

Abstract: An adjustable dispenser tip including a nozzle forming a passage along a length of the nozzle. A plurality of independently movable, flexible fingers define an orifice at a dispensing end portion of the nozzle. A coupler is positioned about at least a portion of the nozzle and movable with respect to the nozzle to contact and urge the fingers to adjust an area of the orifice. An elastomeric web is positioned with respect to the nozzle and connects adjacent fingers. The elastomeric web can be positioned on an outer surface of the nozzle, an inside surface of the nozzle, or between adjacent fingers, for example.

Abstract: The invention relates to a shower head containing a cup-like housing (1) that, in particular, is injection molded out of plastic. The cup bottom has an opening (3) for placing a connection element (4) therethrough. A spray disk element (7) is joined to the housing and can be joined to said housing (1) by means of a simple plugging-in, snapping-in or turning. The shower head is comprised of two parts and, optionally, of a separate seal (8, 15, 20).

Abstract: A showerhead which automatically adjusts the outlet pressure of the water in accordance with changes in water pressure, and eliminates the operation of a faucet, thus enabling showers to be taken comfortably. The showerhead (1) spurts the water, which is flowing from a water source to the specified pipes, through the outlet holes (H) of the shower nozzle (5). The shower nozzle (5) comprises waterproof elastic materials such as silicon rubber or the like. The elastic surface of the shower nozzle (5) incorporates outlet holes (H) which can be enlarged and reduced in accordance with changes in water pressure inside the showerhead (1).

Abstract: A shower head assembly includes a shade, a water outlet seat, a water outlet disk, a locking disk, a water outlet panel, a mounting tube, a connecting head, and a locking nut. Thus, the water outlet seat and the water outlet disk form a smaller water chamber, thereby reducing the bearing weight of the water outlet disk, the locking disk and the water outlet panel. In addition, the water outlet seat, the water outlet disk, the locking disk and the water outlet panel are combined rigidly and stably without detachment.

Abstract: A self-cleaning nozzle that can be used for wet scrubbers comprises an electromagnetic coil that, when energized, causes an outlet orifice of the nozzle to enlarge so that pollutant particles clogging the nozzle fall down the orifice unclogging it. The coil is in turn controlled by a signal responsive to an increased pressure in the pipe supplying the nozzle with water, which increase is indicative of clogging the nozzle.

Abstract: A nozzle device includes a housing (1) having an inlet for a fluid and an orifice for spraying out a firm jet of fluid (38), which orifice is delimited by two or more members, at least one of which is movable relative to the other one between a first position in which the orifice has a minimal cross-section area in order to spray out the fluid in a firm jet in a forward direction from the housing, and a second position in which the orifice is widened in order to be flushed clean by a coarse stream of fluid. A cap (2) is arranged in front of the orifice, the cap having two or more shield walls (16, 17) in which there are holes (20, 21) through which the firm jet of fluid (38), but not the coarse stream of flushing fluid, may pass.

Abstract: The invention relates to a nozzle device including a housing (1) having an inlet for a fluid and an orifice for spraying out a firm jet of fluid (38), which orifice is delimited by two or more members, at least one of which is movable relative to the other one between a first position in which the orifice has a minimal cross-section area in order to spray out the fluid in a firm jet in a forward direction from the housing, and a second position in which the orifice is widened in order to be flushed clean by means of a coarse stream of fluid. According to the invention, a cap (2) is arranged in front of the orifice, said cap having two or more shield walls (16, 17) in which there are holes (20, 21) through which the firm jet of fluid (38), but not the coarse stream of flushing fluid, may pass.

Abstract: A shower handset having teats formed in an elastomeric plate wherein positioning of the elastomeric plate behind the spray plate causes the teats to deflect outwardly, the cross-sectional areas of outlet orifices increasing in response to increasing flow rate.

Abstract: An electrostatic atomizer is disclosed, which includes an electrode or other charge injection device and a source of liquid for passing a stream of liquid past the charge injection device to a variable orifice. The variable orifice is defined between at least two elements, which are movable with respect to each other. A compact stove incorporating the atomizer includes a support for supporting articles to be heated by the burning of atomized fuel. The variable orifice may be used in the stove to control the flow, and therefore thermal output, of the stove.

Abstract: An electrostatic atomizer is disclosed, which includes an electrode or other charge injection device and a source of liquid for passing a stream of liquid past the charge injection device to a variable orifice. The variable orifice is defined between at least two elements, which are movable with respect to each other. A compact stove incorporating the atomizer includes a support for supporting articles to be heated by the burning of atomized fuel. The variable orifice may be used in the stove to control the flow, and therefore thermal output, of the stove.

Abstract: A fluid knife for use with a workpiece treatment/cleaning apparatus, the fluid knife including a front blade and a bottom blade cooperating to form a nozzle. The front blade is pivotally mounted whereby pivoting the blade increases the size of the nozzle to purge the nozzle of any particulate matter caught or trapped in the nozzle.

Abstract: A shower fixture of the present invention has an inner/outer spray ring. More specifically, the shower fixture employs a spray ring which defines plurality of grooves on the inner and outer circumferences thereof. The grooves have varying notch angles to produce water sprays in varying directions. The shower fixture of the present invention also employs a spray ring retainer which has a ring portion and multiple legs extending from the ring portion. The ring portion supports the spray ring from the bottom of the spray ring. The shower fixture of the present invention is capable of producing shower sprays of varying intensities and directions.

Abstract: A nozzle for dispensing fluids with suspended solid particulates without experiencing permanent partial or total clogging is provided. The nozzle is made from a elastomeric material and has a dome-shaped tip. The dome-shaped tip has a slit that provides an elongated orifice which generates a fan-type spray pattern while allowing solid particulates to pass through the nozzle without permanent clogging. The slit is normally maintained closed at rest and provides precompression and shut-off functions. Several versions of the nozzle are described, such as a one-piece nozzle and a nozzle insert. Additionally, the nozzle can be attached to a manually actuated pump device and be used as a spray delivery system.

Abstract: A rotating spray nozzle for use in cleaning containers having a spray head on a shaft, an element for passing liquid both to the exterior of the spray head to cause rotation thereof and for the delivery of liquid in annular streams, liquid passing to the spray head through the shaft and having an hydraulic bearing therefor, the liquid after passing from the spray head occupying which would be a void as far as washing is concerned. The spray head is also moveable axially relative to the shaft, a spring holding the spray head away from the bottom of the shaft when there is no pressure passing therethrough, the pressure of the liquid moving the spray head to the bottom of the shaft, the arrangement providing a manner whereby foreign material can be removed from between the spray head and the shaft as, by reducing the pressure, the space between these can be increased, thus permitting ready flushing of the foreign material.

Abstract: A nozzle device comprises a nozzle (1) having an outlet (2), an inlet (3) and a passage (4) extending between the inlet and outlet. The passage is defined by at least two parts (7, 8), which are movable relative to each other and arranged to be able to be moved away from each other by relative movement so as to widen the passage.

Abstract: A three-way adjustable shower device which can control the water flow rate and temperature includes a shower body , an adjustable valve, a spring valve means, a hose means and a dual pipe elbow. The dual pipe elbow connects with a hot and a cold water pipe for water inlet. The hose means has dual flow passage connecting with the dual pipe elbow at one end and connecting with the shower body at another end. The adjustable valve may be turned to various positions so that water of different flow rate and temperature may be selected to flow into the shower body. The spring valve means may be selected to give water outlet in either spouting, flushing or spraying fashion. (FIG. 1).

Abstract: There is disclosed herein a fluid flow apparatus including a discharge nozzle arrangement comprising a single continuous, meandering stainless steel strand to create a planar screen operatively connected at its outer periphery to a diffuser chamber. The screen is adapted to retain a volume of fluid thereabove until the fluid is forced under pressure through the openings between adjacent segments of the strand. Portions of the screen are adapted to flex resiliently downwardly, out of the plane of the outer periphery, to provide additional clearances between adjacent segments of the screen, in the event particulates should tend to build-up, to thereby resist clogging by flushing same. The round cross-section of the strand facilitates continual cleanliness, and serves to produce better-behaved flow out of the nozzle, thereby reducing foaming of the product being discharged during the filling operation.

Abstract: An adjustable arc spray nozzle assembly is set forth which includes a cylindrical housing member with an arc set flow control member coacting therewith to provide an adjustable arc of flow directed outwardly by a deflector. The adjustable arc of flow is achieved by a unique interaction between a radially spiraled outlet opening and an axially spiraled and sloped member. The configuration facilitates easy cleaning of the flow control area while the sprinkler is operating, and provides ease of manufacture and assembly.

Abstract: An improved atomizer removes deposits from the end cap. The atomizer housing carries a flow of atomizing slurry. A spraying head is connected at one end of the housing and an end cap is connected to the spraying head. A plurality of exit orifices are provided in the end cap for discharging atomized slurry into a flue gas. A connecting ring is detachably engaged with the end cap and has a elastomeric diaphragm for covering an outer surface of the end cap. Energizing fluid is provided through the sprayer head and end cap for expanding the diaphragm away from the end cap surface for releasing particles which adhere to the diaphragm.

Abstract: A method and apparatus for controlling the flow rate of relatively low viscosity fluids, such as accelerators, in viscous, hydraulic slurry spray application systems. An adjustable accelerator flow control system which regulates excess air pressure supplied to the accelerator pump in response to height variations of the spray nozzle is provided. The system is especially useful with fireproofing compositions since it provides effective distribution and constant flow of a viscous, hydraulic cementitious slurry with an acidic accelerator.

Abstract: There is disclosed herein a fluid flow apparatus including a discharge nozzle arrangement comprising a single continuous, meandering stainless steel strand to create a planar screen operatively connected at its outer periphery to a diffuser chamber. The screen is adapted to retain a volume of fluid thereabove until the fluid is forced under pressure through the openings between adjacent segments of the strand. Portions of the screen are adapted to flex resiliently downwardly, out of the plane of the outer periphery, to provide additional clearances between adjacent segments of the screen, in the event particulates should tend to build-up, to thereby resist clogging by flushing same. The round cross-section of the strand facilitates continual cleanliness, and serves to produce better-behaved flow out of the nozzle, thereby reducing foaming of the product being discharged during the filling operation.

Abstract: A nozzle for supplying lubricants to conveyors comprises a plastic housing for a spring loaded valve which can be adjusted to produce either a fan stream or a needle point stream with a minor adjustment of the valve. Contaminating material can be removed from the device by a purge tool which interfits with the valve, and the tool can easily be hand manipulated to lift the valve against the spring loading and effect purging.

Abstract: A strainer device is disclosed for continuously separating liquids from a solid/liquid mixture, the strainer including a screen receiving said solid/liquid mixture and a container under reduced pressure disposed under the screen to collect the strained liquid. High pressure fluid is used to roll the solids off the screen to insure that the solids do not plug the screen. If recycled water is used, a spring-loaded nozzle is also provided which may be purged. The device may also be used for thickening a solid liquid mixture. Preferably an angled or conical screen is used.

Abstract: A self-cleaning spray nozzle and header system sprays liquid upon a predetermined area. As the liquids employed in such spraying operations are often contaminated by suspended particulate matter, blockages of the small nozzle orifice often occur. To clear such blockages and restore the nozzle to operation, a grooved piston forming part of the nozzle orifice is retracted from its seated position within the nozzle barrel. Once the piston is retracted, the barrel opens to its full diameter allowing lodged particles to be flushed away. Several nozzles mounted in tandem upon a fluid distribution pipe form part of a header system which can deliver, in the form of spray, large liquid volumes. The header system allows the self-cleaning function of several nozzles to be efficiently controlled by a single apparatus.

Abstract: A self-cleaning spray nozzle in which a standard fitting serves as the nozzle body. A unitary valve assembly is inserted partially into the fitting and secured to it. The valve assembly includes a secured valve seat biased by a spring into a spraying head so that the valve seat and spraying head form a seal. The spraying head is designed so that it does not form a complete seal with the valve seat, the gap in the seal defining a metering orifice so that under normal fluid pressures, fluid will spray out of the orifice in a predetermined pattern. When a force sufficient to overcome the spring bias is applied to the spraying head, the spraying head separates from the valve seat breaking the seal and allowing the fluid to flush the outlet. The force can either be applied manually, or caused by an increase in fluid pressure. An optional deflection collar may be snapped onto the nozzle for influencing the direction of the spray.

Abstract: A sealing device for sprinklers and the like having predetermined pressurized and unpressurized conditions, the device having a body portion; an attachment member mounted on the body portion for releasable attachment to the sprinkler; a wall mounted on the attachment portion defining a passage extending through the body portion for releasing fluid from the sprinkler externally of the body portion when the sprinkler is in the pressurized condition; and a sealing plate mounted on the body portion and engageable with a portion of the sprinkler in the unpressurized condition to seal the passage of the body portion against fluid entering the sprinkler therethrough.

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: A spray nozzle comprises a hollow body having an inlet, an outlet and a fluid flow passage therebetween. The body contains a pressure-responsive or a pressure responsive and temperature responsive valving element that increases the effective area of the outlet in response to an increase in pressure or an increase in pressure and/or temperature. In a preferred embodiment, the outlet includes a restricted orifice and an unrestricted orifice, and the valving element is movable within the body between a first position in which the restricted orifice is open and the unrestricted orifice is closed, and a second position in which the unrestricted orifice is open. The valving element is biased in the first position by a spring which applies a selectable biasing force that defines a threshold pressure, so that the valving element is moved to the second position by a dynamic pressure of the fluid flowing through the flow passage that is greater than the threshold pressure.

Abstract: A spray nozzle comprises a hollow body having an inlet, an outlet and a fluid flow passage therebetween. The body contains a pressure-responsive or a pressure responsive and temperature responsive valving element that increases the effective area of the outlet in response to an increase in pressure or an increase in pressure and/or temperature. In a preferred embodiment, the outlet includes a restricted orifice and an unrestricted orifice, and the valving element is movable within the body between a first position in which the restricted orifice is open and the unrestricted orifice is closed, and a second position in which the unrestricted orifice is open. The valving element is biased in the first position by a spring which applies a selectable biasing force that defines a threshold pressure, so that the valving element is moved to the second position by a dynamic pressure of the fluid flowing through the flow passage that is greater than the threshold pressure.

Abstract: A miniature irrigation water spray fitting includes a body part having a top and a bottom and with an inlet for receiving longitudinal flow of water from the bottom. The body part also includes a depending skirt between the top and the bottom extending generally radial to the flow of water through the inlet. The cap part is threaded onto the top of the body part and has a depending edge engaging the skirt of the body part when the cap part is screwed fully home, the cap part having an outer peripheral gripping edge. One of the body or cap parts has plural radial grooves extending along the respective skirt or depending edge to permit the radial flow of water from the fitting. The cap part gripping edge permits a field worker to quickly clear any clogging of the grooves by rotating the cap part a half turn or so, and thereafter quickly rotating the cap part fully home again.

Abstract: A self-cleaning sprayer head having the capability to deliver a radially directed spray is disclosed. The sprayer head (10) includes a hollow, elongate casing (16), a flanged outlet end (28), and a plunger (42) mounted for sliding reciprocal movement within the casing. A spring (48) holds the plunger (42) in a retracted position. A flexible disc (38) connected to the outlet end of the casing defines an outlet gap (60). The disc (38) is connected to the plunger (42) for movement between a flush position, wherein the outlet gap (60) has a maximum width, and a spray position wherein the gap (60) has a minimum width. The disc (38) is configured to assume the flush position when the plunger (42) is retracted. When pressurized liquid is introduced into the casing (16), the plunger (42) moves in opposition to the spring (48) from its retracted position, through an intermediate position to a spray position. Simultaneously, the pressurized liquid passes through the ports (58) in the plunger and out through the gap.

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 constant pressure nozzle having a pressure-responsive baffle head movable toward and away from a throat element so as to define a discharge orifice. The throat being movably mounted for retraction by external control means to a debris-flushing position, but means being provided to maintain the throat in a fixed position during normal operation of the nozzle.