Abstract: A combination of a cover and a sprinkler head. The sprinkler head includes a fusible linkage mounted within a frame and having a protruding portion. The cover includes a first member adjacent to the protruding portion of the fusible linkage. The first member has a first connecting end and a first fastening end opposite the first connecting end. A second member is opposite to the first member and has a second connecting end and a second fastening end opposite the second connecting end. The first and second connecting ends are coupled to each other. A first projection and a second projection extend from the first member toward the second member and are in spaced relation to each other for receiving the protruding portion of the fusible linkage.

Abstract: A blow off cap and nozzle apparatus includes a nozzle having a tip with an aperture covered with a sealing membrane held in position over the nozzle aperture by a retaining device, so that a seal is provided for preventing ingress of contaminants into the nozzle when not in use, and the sealing membrane becomes dislodged from the nozzle when use of the nozzle commences.

Abstract: A sprinkler includes a receiving barrel, a boosting unit, a spraying unit and a protective hood. The protective hood has a side provided with a plug which has an end face provided with a mounting post. The mounting post has an inner portion provided with a mounting recess and an end portion provided with a spraying hole. The end face of the plug has a periphery provided with a plurality of filtering holes. The plug of the protective hood is inserted into the mouth of the receiving barrel when the protective hood is mounted on the mouth of the receiving barrel. The mounting post of the protective hood is mounted on the nozzle head of the spraying unit when the protective hood is mounted on the nozzle head of the spraying unit.

Abstract: A housing is formed of a peripheral wall, an upper face and a lower edge. The housing is positionable upon a spray container. The housing has securing members holding the housing to a spray container. A dispensing assembly has projections. The dispensing assembly has aligned apertures. The dispensing assembly has a rotatable member. The rotatable member has a linear region. The rotatable member is received in the aligned apertures. The dispensing assembly has a handle extending from the linear region to a location spaced from a container. The dispensing assembly also has a planar arm secured to the linear region. The arm has a threaded aperture a threaded adjustment bolt. The bolt is rotatably received in the threaded aperture. The adjustment bolt has a lower tip in contact with a head for the depressing of a head and dispensing of contents from a container upon squeezing of the handle.

Abstract: Provided is an apparatus for supplying chemical liquid. The apparatus includes: a plurality of nozzles, each of which can be moved forward or backward and supplies chemical liquid; a nozzle cover which accommodates the nozzles therein and has an open end to allow each of the nozzles to move into or out of the nozzle cover; and a nozzle driver which moves each of the nozzles forward or backward.

Abstract: A combination of a cover and a sprinkler head. The sprinkler head includes a fusible linkage mounted within a frame and having a protruding portion. The cover includes a first member adjacent to the protruding portion of the fusible linkage. The first member has a first connecting end and a first fastening end opposite the first connecting end. A second member is opposite to the first member and has a second connecting end and a second fastening end opposite the second connecting end. The first and second connecting ends are coupled to each other. A first projection and a second projection extend from the first member toward the second member and are in spaced relation to each other for receiving the protruding portion of the fusible linkage.

Abstract: A sprinkler includes a receiving barrel, a boosting unit, a spraying unit and a protective hood. The protective hood has a side provided with a plug which has an end face provided with a mounting post. The mounting post has an inner portion provided with a mounting recess and an end portion provided with a spraying hole. The end face of the plug has a periphery provided with a plurality of filtering holes. The plug of the protective hood is inserted into the mouth of the receiving barrel when the protective hood is mounted on the mouth of the receiving barrel. The mounting post of the protective hood is mounted on the nozzle head of the spraying unit when the protective hood is mounted on the nozzle head of the spraying unit.

Abstract: An injection head for the combustion chamber of a rock propulsion unit has a base area with a plurality of injection elements distributed on it. Propellant constituents can be injected from each outlet of the injection elements into the combustion chamber, generating hot gases by a mixing and combustion of the propellant constituents in the combustion chamber, which hot gas can be accelerated to a high velocity for generating thrust. The base area of the injection head had a contoured shape which prevents or reduces the formation of zones of a reduced pressure, particularly between directly adjacent outlets.

Abstract: A metering device for dispensing a medium to an environment is provided. The metering device includes a housing, a shallow metering chamber within the housing which is of planar design and is essentially closed off from the environment by wall sections, a first media inlet which is connected to the metering chamber and can be connected to a media reservoir, and a vibration mechanism which is arranged in such a manner that vibrations generated by the vibration mechanism cause pulsing changes in volume of an internal volume of the metering chamber. A wall section which is designed as an outlet wall section has metering openings so that the metering chamber is connected to the environment. The vibration mechanism forms a vibration wall section so that the metering chamber is delimited.

Abstract: An irrigation sprinkler spray nozzle is provided that includes a first deflector surface defining a first configuration to project a fluid spray having a first distribution pattern, and a second deflector surface defining a second configuration to project a second fluid spray having a second, different distribution pattern. To select the fluid spray, the nozzle further includes a selector having a first position to select the first deflector surface and a second position to select the second deflector surface.

Abstract: A protection device for a fire-fighting/protection instrument and its operational components. The device includes a proximal end surface and a distal end surface with a wall member extending therebetween having an outer surface and an inner surface. The proximal and distal end surfaces define a chamber with the wall member for housing at least a portion of the instrument. The wall member includes a first portion and a second portion defining at least one pivot axis therebetween. At least one of the first and second portions further defines a core element disposed between a first lateral member and a second lateral member. The inner surface of the device includes a plurality of projections for supporting the instrument in the chamber.

Abstract: A water gun may comprise a body having a front surface, a nozzle mounted on and extending from the body, an actuator, at least one fluid reservoir, and a pump. The nozzle may have at least a nozzle portion adapted to move between an extended position spaced away from the front surface and a retracted position closer to the front surface than the extended position. The actuator may be adapted to be moved relative to the body, and mechanically coupled to the nozzle for moving the nozzle between the retracted and extended positions when the actuator is moved between first and second positions. The fluid reservoir may comprise first and second end portions and a generally uniform elongate intermediate portion extending between the first and second end portions, which may have volumes that are larger than the volume of the intermediate portion.

Abstract: A cap is provided for preventing clogging of a spray nozzle on a container. Structurally, the cap includes a hollow, truncated cone-shaped member with first and second ends. At its first end, the cap defines an orifice dimensioned to selectively receive the spray nozzle to create a fluid-tight seal with the container. At its second end, the cap defines a periphery. Further, the cap includes a panel that has a flat surface bounded by a perimeter that is interconnected to the periphery by an intermediate section. As a result, the cone-shaped member, intermediate section and panel form a fluid chamber. Fluid is positioned in the chamber for movement between a first location where the spray nozzle is submerged and a second location where the fluid is held at a distance from the spray nozzle for removal of the cap from the spray nozzle.

Abstract: A cleaning device for cleaning the front cover lens of a vehicular lamp, including a bracket 8 that is attached to the cylinder of a spray nozzle 5 and positions the cylinder in the opening formed in a vehicle body, a fixing member 9 that covers the bracket, and an elastic member (a clip spring) 101 disposed between the bracket and the fixing member. Engagement pieces 83b and 84a of a pair of arm elements 83 and 84 of the bracket engage the front (outer) side of the opening, a plurality of contact portions 92a, 93a, 94a and 95a of the fixing member are in contact with the rear (inner) side of the opening, and the elastic member interposed between the bracket and the fixing member urges the fixing member toward the opening, thus securing the bracket to the opening.

Abstract: An anti-skipping sprinkler includes a frame defining a central longitudinal axis, the frame including a base portion defining an orifice, and first and second arms extending away from the base portion and joining at a lower end of the frame; a deflector located at the lower end of the frame; an orifice plug held over the orifice by a trigger element including a heat sensitive element; and an anti-skipping shield extending circumferentially around the heat sensitive element. The anti-skipping shield has an upper end and a lower end. The anti-skipping shield is open at the upper end and at the lower end to permit airflow to the heat sensitive element around the upper end and the lower end of the anti-skipping shield.

Abstract: A rolling liquid herbicide applicator with an adjustable shield is attached to a hollow pole having an adjustable width protective shield mounted to one end weighted, textured wheels for rolling over most terrains are attached to the adjustable width protective shield. On the opposite end of the hollow pole handle is a trigger. When the trigger is activated, an internal trigger stick is moved down through the hollow pole, thereby causing a “C” piece to move upward. This upward movement pushes on a hard flat disk. The movement of the hard flat disk causes pliable cap center to move. The gravity flow of liquid herbicide from a liquid herbicide container causes the liquid herbicide to move through a tube and nozzle assembly. The adjustable width protective shield over the nozzle prevents overspray and accidental contact of the liquid herbicide on healthy desired vegetation.

Abstract: Improvements to a portable fire extinguisher where the improvements relate to a system where the owner of the extinguisher can service and maintain their fire protection. Systems in place today require the servicing of a third party. The service companies (third parties) are charged with maintaining the system. Further Improvements include an anti-bridging mechanism that is articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. The improvements further include a wall mounting bracket that reduces tampering with the extinguisher, an automatic fluffing motor and manual fluffing wheel with a chuck for use with a drill. These features extend the service intervals while maintaining the fire extinguisher in a ready condition. The fire extinguisher is construction of components that are interchangeable and provide equal operation for left and right handed people.

Abstract: Methods and apparatus to improve flux spray atomization and/or splash control are described. In one embodiment, a flux nozzle includes a plurality of injection holes to deposit flux fluid through an exit hole of an air cap onto a substrate (such as a printed circuit board). The flux fluid may atomize prior to deposition onto the substrate as relatively smaller broken down flux droplets that may aid reduced spray splash. Other embodiments are also described.

Abstract: A rolling liquid herbicide applicator with an adjustable shield is attached to a hollow pole having an adjustable width protective shield mounted to one end weighted, textured wheels for rolling over most terrains are attached to the adjustable width protective shield. On the opposite end of the hollow pole handle is a trigger. When the trigger is activated, an internal trigger stick is moved down through the hollow pole, thereby causing a “C” piece to move upward. This upward movement pushes on a hard flat disk. The movement of the hard flat disk causes pliable cap center to move. The gravity flow of liquid herbicide from a liquid herbicide container causes the liquid herbicide to move through a tube and nozzle assembly. The adjustable width protective shield over the nozzle prevents overspray and accidental contact of the liquid herbicide on healthy desired vegetation.

Abstract: A sprinkler head housing for allowing access to sprinkler heads and shafts for maintenance and repair. More particularly, the present invention relates to a device which allows for, and encloses, a working space around underground sprinkler heads. The device is placed around a sprinkler shaft in the ground and the plant material is placed on its outside. The top of the sprinkler head sits above the device. When the sprinkler needs to be accessed, the top of the device can be removed and an open interior space remains where a user can place his/her hands and/or tools to repair or replace a sprinkler head. This invention may be installed when the underground sprinkler system itself is first installed or alternatively may be installed at each sprinkler head as needed.

Abstract: The invention relates to a cleaning head for enabling pressurized cleaning liquid to act upon a surface to be cleaned, comprising at least one spray arm which is rotatably mounted about an axis of rotation and on which is mounted at least one nozzle which can be fed with cleaning liquid by a pressure pump. The invention also relates to a surface cleaning device comprising said type of cleaning head. In order to further develop the surface cleaning device and the cleaning head in such a way that the surface cleaning device can be handled more easily, the invention proposes that the pressure pump is integrated into the cleaning head.

Abstract: A spout cover for a spout having an outlet end includes a first member, having a deflector, mounted to a second member having a liquid soap reservoir and a dispenser for dispensing liquid soap from the liquid soap reservoir toward the deflector. A receiving area is defined between the first and second members for receiving the spout. The first member is movable relative to the second member between a first position permitting the spout to be received in the receiving area and a second position locating the deflector underneath the outlet end of the spout and preventing withdrawal of the spout from the receiving area.

Abstract: A self-priming nozzle device (20) comprising a nozzle sleeve (9), a nozzle body (1) comprising a nozzle body aperture (16), a sleeve portion (15) and an attachment portion (14), wherein the sleeve portion (15) attached to said attachment portion (14), and the sleeve portion (15) of the nozzle body (1) fits in the nozzle sleeve (9), a nozzle stem (3) comprising a stopper (21), an O-ring (4), and a rod portion (23), wherein said stopper (21) attached to said rod portion (23), and said O-ring (4) is positioned around said rod portion (23) near about said stopper (21), and said nozzle stem (3) is placed inside said nozzle sleeve (9) and said nozzle body aperture (16), and said stopper (21) located within said nozzle sleeve (9), a spring loaded component (25) comprising a plurality of washers (2a, 2b), a compression spring (6) and a compression element (5), and said spring loaded component (25) positioned on said rod portion (23) of nozzle stem (3), and said compression element (5) is attached to said rod portion

Abstract: An adjustable knife-curtain outlet structure of cleanout handle, its features are as follows: outlet of cleanout handle is designed as layer lockup phase, grove to cover O-ring is set inside each screw thread; the small diameter screw thread of lockup phase is locked up with inlet thread groove of water spray joint, and the big diameter screw thread locks up bushing so as to assemble joint and bushing, O-ring can in deed prevent leaking at assembly position, furthermore, bushing can be easily demounted to wash, water spray joint can be turned around.

Abstract: A cleaning device for a vehicular lamp including a piston 3, which has a spray nozzle 5 and a nozzle cover 7 covering the spray nozzle, and a cylinder 2, which drives the piston into and out of an opening 91 formed in a vehicle body 9. The nozzle cover has a cylindrical shaft receiving portion 72 extending from the rear surface thereof and an engagement hole 73a provided at a position away from the shaft receiving portion. The distal end of the piston has an engagement shaft portion 82, which projects forward and fits with the shaft receiving portion of the nozzle cover, and an engagement tab 83, which engages with the engagement hole of the nozzle cover. The engagement shaft portion fits with the shaft receiving portion and the engagement tab engages with the engagement hole by moving the nozzle cover toward the distal end of the piston.

Abstract: A masking device to prevent over-spray when using an aerosol can to apply aerosols to a work surface. The device includes a horizontal channel structure, the back end of which is essentially open and serves as an insertion point for an aerosol nozzle feed tube from an aerosol can, while the front end serves as an attachment seat for a masking unit. The back end of the horizontal channel is open, providing the user access to the aerosol nozzle in order to actuate the aerosol nozzle with a finger, whereby an aerosol is propelled forward into a masking unit. The masking unit has a small orifice creating a planar opening at the back, and a large orifice creating a generally planar opening at the front The masking unit is essentially hollow, providing the ability to contain an aerosol, the large orifice serving as a mask against a target surface.

Abstract: A discharge assembly used with a fire suppression delivery system comprises a nozzle having an outer nozzle surface and inlet and discharge ends. The inlet end receives fire suppression agent and the discharge end dispenses fire suppression agent through an orifice. A blow-off cap has an open-ended cavity shaped to receive the discharge end of the nozzle and cover the orifice. The cavity includes an interior cap surface located in close proximity to the outer nozzle surface of the nozzle when the blow-off cap is mounted on the discharge end of the nozzle. A receptacle is formed in at least one of the outer nozzle surface of the nozzle and the interior cap surface of the blow-off cap. A retention element fits within the receptacle and engages the outer nozzle surface and interior cap surface, providing a predetermined amount of retention resistance to retain the blow-off cap on the nozzle.

Abstract: A pop-up bubbler assembly for drinking fountains or other appliances that includes a head with a dispensing spout that rises upward out of a housing to dispense an arc of clean water when activated. The bubbler head then drops back down into the housing after water flow stops such that the dispensing spout is covered when not in use.

Abstract: Tunnel sprayer for rows of plants, is of the type having opposing shields (S, S?) which substantially cover the whole heights of the opposing sides of at least one row, and which comprise fans (14) to create a flow of air which in delivery travels parallel to the flow of treatment liquid sprayed on to each side of the row by at least one corresponding bar (22) with nozzles (122) and which in intake sucks in the air and treatment liquid delivered by the shield operating on the other side of the row, so as to avoid the dispersion due to wind drift and limit losses in the air and drips of excess liquid on to the ground.

Abstract: There is provided a shield for self-defense provided with a spray device capable of securing safety by always and reliably supporting the shield so as to eject a spray with a simple operation while using the a hand gripping the shield.

Abstract: A portable debridement and irrigation device includes a body structure and a disposable spray nozzle structure and spray reduction cup removably mounted thereon. A battery-powered electric pump device is in liquid transmission connection with the disposable spray nozzle device. A removable and replaceable liquid storage container which holds a sterile liquid is held within a storage container receiving chamber formed within the body structure in liquid transmission connection with the electric pump, and a pump engagement switch is operatively interposed between the battery and the electric pump for engaging and disengaging the electric pump. Finally, a pump speed control device with a limiting device for preventing it from proceeding beyond a predetermined operating setting unless the operator intentionally disengages the limiting device is operatively connected to the electric pump for adjusting the operating speed of the pump and thus the outflow speed of liquid from the spray nozzle.

Abstract: A sprayer for providing a regulated flow of material to a gun wherein said material is disbursed by means of a flow of air provided by a compressor. The sprayer includes a number of features that facilitate usage. Such features include a polygonal-shaped free end of a cartridge shaft that is aligned with and coupled to thereby rotate with the augur of a pump. An aperture in a guard that overlies the free end of the shaft permits easy access with a socket-like tool for unfreezing the pump without disassembly. The rear panel of a hopper exceeds that of the side and front panels to permit tipping of the sprayer frame for manual transport without spillage of material. A hook is provided on the frame of the sprayer for ready attachment and detachment of controller electronics.

Abstract: A pool filter cleaning device (1) which allows a person to thoroughly clean a filter cartridge (15) quickly and easily with minimal amount of splash back. The pool filter cleaning device (1) is comprised of a handle (2), an angled head section (12), a shield (6) and a nozzle (8). The device (1) is attachable to standard garden hoses (3) and utilizes water pressure to clean the cartridge filter (15). The handle (2) is attached to an angled head section (12) having a preferably transparent shield (6) attached therebetween. The head section (12) is angled so as to provide a more comfortable cleaning position for a user. The shield (6) has a duel purpose as it separates the pleats (16) on the cartridge filter (15) and prevents water and debris from splashing back onto the user.

Abstract: A fuel injector for fuel-injection systems of internal combustion engines has a solenoid coil; a valve needle that is operatively connected to the solenoid coil and acted upon by a restoring spring in a closing direction, in order to actuate a valve-closure member which, together with a valve-seat surface formed at a valve-seat member, forms a sealing seat; and at least two spray-discharge orifices which are formed in the valve-seat member. The spray-discharge orifices are formed in the valve-seat member in such a way that they are shielded from mixture flows circulating in a combustion chamber of the internal combustion engine.

Abstract: A cover mountable on a support frame for protecting a frangible item mounted within the frame is disclosed. The cover has first and second cover portions engaging the frame on opposite sides of the item. A hinge connects first ends of the covers together and a releasable fastener connects the other ends. Fingers extend from one or both of the cover portions toward the opposite cover portion and are positioned in spaced relation to the ends of the cover portions. The fingers and the ends of the cover portions define spaces at opposite ends of the cover which receive and engage portions of the support frame. The fingers are in spaced relation to one another and define a space between them for receiving the frangible item. The fingers are sized and spaced so that they transfer any force on the cover to the frame exclusively. The covers have an arcuate shape to provide increased stiffness.

Abstract: An air brush includes a brush member with a head portion at an end and a nozzle on the head portion. A nozzle cover is detachably bonded to the nozzle. The nozzle cover has a first attracting portion, and the nozzle has a second attracting portion associated with the first attracting portion. The first attracting portion and the second attracting portion are attracted together by a magnetic force to bond the nozzle cover to the nozzle.

Abstract: A sprinkler head vegetation shield that includes a sloping wall defined by a single-piece curved plate. A lip extends horizontally away from the wall along an upper perimeter thereof for supporting the shield adjacent a sprinkler head without attachment thereto. A notch is located substantially near a lower perimeter of the sloping wall and configured to accommodate movement of the sprinkler head relative to the plate.

Abstract: The present invention comprises a walk behind zero turn radius drive unit and a front spray frame carrying a plurality of transversely spaced, clearly observable spray nozzles. The drive unit permits accurate and high productivity traverse of the application area with the ability to steer around obstacles and accurately traverse an irregular edging pattern. The spray frame includes a pair of folding spray arms, each of which carried dispensing nozzles. Another set of nozzles is positioned at the sides of the frame. All the nozzles are within the forward lateral view of the operator permitting ready steering of the drive unit around the borders of the application area. The nozzles are supplied with liquid from a frame mounted tank by an electric pump powered by the drive unit. The spray nozzles are controlled by an operator valve positioned adjacent the drive unit control, thereby allowing operator to control the application during travel.

Abstract: A sprinkler head guard includes an inner casing that has a cylindrical shape, and vertically aligned top and bottom openings. A first coupling is conjoined to the inner casing and has a threaded inner surface. A second coupling has axially offset lower and upper ends having threaded outer surfaces. The upper end is mated with the first coupling. The lower end is mateable to a water supply line. An outer casing is slidably and telescopically engageable with the inner casing, and has a bore that becomes situated about the first coupling. The outer casing has a top lip that is flanged outwardly and includes rectilinear creases formed therein. Each crease defines a line of weakness, allowing a user to snap off a top lip portion. The inner and outer casings are shaped for housing a sprinkler head therein. A mechanism is included for locking the casings together.

Abstract: A protective shield for protecting a feed nozzle encloses, not only the circumference of the feed nozzle, but also encloses and protects the end of the feed nozzle. The protective shield includes an open portion in its end which corresponds to, and surrounds the slit in the end of the feed nozzle. Optimal shape of the open portion is determined by spray visualization tests.

Abstract: A spray shield apparatus for shielding against spray from a sprinkler head and which can be quickly and easily attached and detached from a sprinkler standpipe or riser. The spray shield apparatus (20) has a semi-cylindrical body (22) enclosed within a circular segmental top end (21) and a circular segmental bottom end (24) and that attaches to a riser (29) via a snap-in attaching hole (26) integrated within said circular segmental bottom end. Configured into said snap-in attaching hole is a gripping aperture (27) that engages said riser via friction fit and affixes said spray shield in position. Additionally, an orienting shelf (25) on the interior of said semi-cylindrical body serves to prevent the spray shield apparatus from being nudged forward and interfering with a spray pattern.

Abstract: A paint sprayer for spraying a fluid comprises a housing that houses a motor, a pump, and a fluid passage. A handle is coupled to the housing and a paint cup is coupled to the handle for storage of a fluid. The handle is positioned between the housing and the paint cup. The paint sprayer has a center of gravity region. A longitudinal axis of the handle and a longitudinal axis of the paint cup are aligned with the center of gravity region of the paint sprayer. A gripping zone of the paint sprayer is also aligned with the center of gravity region.

Abstract: A spray delivery system including a sectional boom attachable to a vehicle. The boom includes first and second movable arms and a fixed arm, each arm housing a plurality of spray nozzles. Each arm can include a frame having openings so that the arms are light-weight and so that the nozzles housed in the frames for protection can spray through the openings in the bottom surface of the frame. The movable arms include an operation position and a retracted position and the arms each include a drift shroud covering to prevent wind from interfering with the application of spray from nozzles. The drift shrouds can include windows that align with the openings in the frame such that an operator can see the spray from the nozzle from the operator's seat in the vehicle.

Abstract: A sprayer has a spray shield and a spray shield retainer. The spray shield is removably attached to the spray shield retainer for efficient storage when not in use. The spray shield can be contoured to the body of the sprayer. The spray shield is configured for attachment to a spray wand proximate to a nozzle.

Abstract: Disclosed is a device for increasing entrainment and mixing in an air/fuel zone of a direct fuel injection system. The device comprises an ejector nozzle in the form of an inverted funnel whose central axis is aligned along the central axis of a fuel injector jet and whose narrow end is placed just above the jet outlet. It is found that effective ejector performance is achieved when the ejector geometry is adjusted such that it comprises a funnel whose interior surface diverges about 7° to about 9° away from the funnel central axis, wherein the funnel inlet diameter is about 2 to about 3 times the diameter of the injected fuel plume as the fuel plume reaches the ejector inlet, and wherein the funnel length equal to about 1 to about 4 times the ejector inlet diameter. Moreover, the ejector is most effectively disposed at a separation distance away from the fuel jet equal to about 1 to about 2 time the ejector inlet diameter.

Abstract: A fuel injector (1) for direct injection of fuel into the combustion chamber of internal combustion engines having an actuator (10), a valve needle (3) operable by the actuator (10) for actuation of a valve closure member (4) which, together with a valve seat face (6) on a valve seat member (5), forms a sealing seat, and at least one spray discharge orifice (7), which is formed downstream from the valve seat (6). A flame protection cone (34) is provided on a downstream end (35) of the fuel injector (1).

Abstract: An improved orifice assembly for use with an ultra high pressure fluid jet cutting apparatus is disclosed. The improved orifice assembly generally includes an orifice body defining a central bore, a high pressure inlet cavity located at an upstream portion of the body, a mixing cavity located at a downstream portion of the body, and an abrasive material inlet bore that is in direct communication with the mixing cavity. The inlet or high pressure cavity preferably has a cylindrical cross section at the side wall portion and a generally flat bottom wall, with a constant radius transition portion between the side and bottom walls. A jeweled orifice is preferably located at the bottom wall and forms a portion thereof. A chamfer at the downstream portion of the mixing chamber permits appropriate coaxial alignment of a mixing tube with the jeweled orifice so as to preserve proper fluid flow characteristics.

Abstract: A needle foot assembly for a dispensing system includes a needle nut, a rotatable bearing, a friction brake, and an end piece holding the needle foot. The needle foot assembly attaches the needle to a dispensing head of the dispensing system. Rotation of the bearing alters the orientation of the needle foot and needle. The needle foot is removeably attached to the end piece and can be adjusted with respect to height.

Abstract: Reversible spray head, including a reversible element or key (5) placed in a central body and through which is a channel (9) with a spray insert (10, 11) on each end; rotating the element or key 180° allows changing from one spray hole to the other.

Abstract: A rotary atomizing applicator is provided with passages directing ambient air to an area of low-pressure created behind a rotary atomizer of the applicator. The passages have ambient air openings thereto remote from the rotary atomizer. When a low-pressure area is created by the pumping effect from the rotary atomizer, ambient air is drawn through the passages to reduce the low-pressure area.