Abstract: A high pressure rotary nozzle having a rotating shaft operating within a fixed housing wherein the of axial force which acts upon the shaft due to the liquid pressure at the shaft inlet is balanced by allowing passage of a small amount of the pressurized liquid to be bled to an area or chamber between the outside of the opposite end of the shaft and the inside of the housing where the liquid pressure can act axially in an opposing direction upon the shaft to balance the axial inlet force. The balance of axial forces is self-regulating by controlling escape of the liquid through a tapered or frusto-conical region between the shaft and housing. This further provides a liquid bearing between the two surfaces and allows use of interchangeable rotating jet heads having jet orifices which can be oriented in virtually any desirable configuration including axially forward of the nozzle.

Abstract: An ice distribution device for delivering ice to an ice retaining unit is provided, whereby a nozzle of the distribution device is adapted to be rotated in an eccentric rotation when installed at an upper end of an ice retaining unit, such that, when it is rotated about its axis, forces acting inside an eccentrically mounted nozzle will produce both axial and lateral components, with the lateral components of force providing a controlled “wobble”, that will deliver a substantially uniform distribution of ice within the retaining unit. A sensing device, which may be ultrasonic, mechanical or some other means, may be used to sense the level of build-up of ice within a retaining unit, for discontinuing the flow of ice to the distribution device, or diverting it to another ice retaining unit, as may be desired. The distribution and sensing devices are mounted on a top wall of the ice retaining unit and are adapted to accommodate top walls of such units of various thicknesses.

Abstract: A high pressure rotary nozzle having a rotating shaft operating within a fixed housing wherein the of axial force which acts upon the shaft due to the liquid pressure at the shaft inlet is balanced by allowing passage of a small amount of the pressurized liquid to be bled to an area or chamber between the outside of the opposite end of the shaft and the inside of the housing where the liquid pressure can act axially in an opposing direction upon the shaft to balance the axial inlet force. The balance of axial forces is self-regulating by controlling escape of the liquid through a tapered or frusto-conical region between the shaft and housing. This further provides a liquid bearing between the two surfaces and allows use of interchangeable rotating jet heads having jet orifices which can be oriented in virtually any desirable configuration including axially forward of the nozzle.

Abstract: A sprinkler apparatus including a manifold is used with a nipple and a union. The manifold includes a pipe section and at least one port. There is a fitting on the port. The nipple has a proximal and distal end. A fitting is located at to the distal end of the nipple. One or more radially extending projections may be positioned around the circumference of the nipple. The fitting on the fitting on the distal end of the nipple may form a water-tight seal with a fitting on a valve without tightening with a wrench by mating the projections and indentations and applying a torque to the union. The union includes one or more indentations that may align with and mate with the projections to allow the union to slide over the nipple. The union has a fitting. The fitting on the union corresponds to and engages the fitting on the port.

Abstract: An improved seal for use in fluid systems such as a water jet system includes an outer seal point that is very close to an inner seal point. By spacing these two seal points very close together, the force on the seal is greatly reduced compared to the prior art. In the disclosed embodiment, the outer seal point is on an angled forward face of the seal that abuts a back-up ring angled face. The inner seal point is between the seal and an internal shaft which rotates relative to a housing.

Abstract: An ultrasonic waterjet apparatus (10) has a mobile generator module (20) and a high-pressure water hose (40) for delivering high-pressure water from the mobile generator module (20) to a hand-held gun (50) with a trigger and an ultrasonic nozzle (60). An ultrasonic generator in the mobile generator module (20) transmits high-frequency electrical pulses to a piezoelectric or magnetostrictive transducer (62) which vibrates to modulate a high-pressure waterjet flowing through the nozzle (60). The waterjet exiting the ultrasonic nozzle (60) is pulsed into mini slugs of water, each of which imparts a waterhammer pressure on a target surface. The ultrasonic waterjet apparatus (10) may be used to cut and de-burr materials, to clean and de-coat surfaces, and to break rocks. The ultrasonic waterjet apparatus (10) performs these tasks with much greater efficiency than conventional continuous-flow waterjet systems because of the repetitive waterhammer effect.

Abstract: A watering device for watering bushes, grass, etc., which has a base unit connected to a substantially vertical riser which is connected to a sprinkler head, wherein the base unit can also have a receiving unit which holds a substantially vertical riser and a plurality stabilizing units, wherein the plurality of stabilizing units are adapted to be inserted in the ground, and wherein the stabilizing units are removable from the receiving unit.

Abstract: The cleaning nozzle according to the invention having a nozzle body (100) and a nozzle head (104) arranged on a shaft (106) rotatably seated on said nozzle body, and having a cavity (107), which extends in axial direction in said nozzle body (100) and which is connected with a pressurized water supply (102), by means of which cavity pressurized water supplied via the pressurized water supply (102) is guided to the nozzle head (104) and is discharged to the outside in said nozzle head (104) by at least one nozzle orifice (118), is formed especially by a friction brake comprising at least two disc elements (108, 110) that are in mechanical contact one with the other in the axial direction for restricting the rotational motion of the shaft (106).

Abstract: Dissolving a solid detergent packed in a detergent container while forming a dissolved surface into a horizontal surface without leaving any detergent in the container. Among these, a rotary nozzle within a closed structure, in which the rotary-nozzle fixture is mounted in a center of rotation of a rotary-nozzle body, the rotary-nozzle body is formed to be substantially S-Shaped in a plan view and divided vertically into two upper and lower parts, where the lower part of the rotary-nozzle body is provided with a rotating shaft hole, which is disposed centrally in a longitudinal direction, formed on a top thereof with a circular groove.

Abstract: Rotating nozzle for dispensing pressurised fluids contained in a spray can (1) provided with a dispensing valve (2) which can be actuated in the axial direction (X-X) for opening/closing thereof, said nozzle comprising a front dispensing part (260) movable rotationally and axially fixed to a part (230) for coupling with the spray can (1), said coupling part being in turn movable in terms of displacement and idle rotationally.

Abstract: A dishwasher with a height-adjustable upper rack carries a spray arm having a horizontal manifold tube that engages in a port of a check valve assembly coupled with a vertical main feed tube for supplying wash water to the spray arm. The check valve assembly defines a plurality of ports such that the manifold tube can engage a different one of the ports depending on the vertical position of the rack. The check valve assembly has flapper valves that pivot about horizontal axes and hang downwardly therefrom such that gravity tends to move the flapper valves toward their closed positions when the manifold tube is withdrawn from the ports.

Abstract: The present invention provides an improved water flow switching mechanism of a gear-type sprinkler, which addresses problems of typical gear-type sprinklers, such as invalid water switching and poor stability. The gear-type sprinkler includes a water inlet portion, a water outlet portion and accommodating space. A convex framework is additionally placed onto the accommodating space opposite the separate water outlets. Two lateral grooves are defined in the convex framework, each corresponding to a water outlet. So the pivotal portion of the rotary switching seat is assembled centrally into the convex framework. The rotary switching seat is provided with two opposite extension flanges. The extension flange may block the lateral groove of the convex framework in line with the swinging direction of the rotary switching seat. The water-stop area of rotary switching seat is greatly increased, thus ensuring the stability of the water flow switching state and improving performance of the sprinkler.

Abstract: A portable water sprinkling amusement device incorporates a water storage reservoir for transporting its own supply of water, at least one nozzle assembly defining at least one discharge orifice, an avenue of release establishing fluid communication between the water storage reservoir and the at least one nozzle assembly, and a fluid transfer system operative to develop forces for causing a stream of liquid to flow through the avenue of release and out of the discharge orifice upon actuation of an on/off mechanism.

Abstract: A spray head assembly is provided for use in RV's, motor homes, campers and the like having gray and black water waste tanks. The spray head assembly allows for easy and thorough cleaning of the tanks to rid the tanks of sludge and debris that accumulates therein potentially causing unsanitary and unsafe conditions. Different forms of the invention are described for either retro-fitting or for factory installation on new RV's. The preferred form of the spray head assembly includes a mount having a planar flange for attachment to the outside wall of an RV waste tank. An aperture formed in the tank wall allows the spray head assembly to penetrate therethrough. By attaching a water conduit to the spray head assembly the nozzle of the spray head assembly will rapidly rotate by the pressurized water directed therein and will forcefully spray water through a plurality of channels in the nozzle. The sprayed water strikes the interior tank walls with great force, dislodging the sludge and debris buildup.

Abstract: An improved spinner bar for rotary surface cleaning machines includes an array of spray nozzles at each end of the bar. The nozzles in each array are adjustable. The outermost nozzle in each array is oriented at a different angle of inclination to the plane of rotation than the angle of the inner nozzles. The improved spinner bar results in a more uniform appearance in the cleaned surface, has a low noise level and reduces man-hours.

Abstract: A firefighting system for use on a firefighting truck includes a telescoping support frame, a telescoping arm connected to the telescoping support frame, a water pipe extension to extend the telescoping arm, and a spinning nozzle positioned at an end of the water pipe extension.

Abstract: An improved seal for use in fluid systems such as a water jet system includes an outer seal point that is very close to an inner seal point. By spacing these two seal points very close together, the force on the seal is greatly reduced compared to the prior art. In the disclosed embodiment, the outer seal point is on an angled forward face of the seal that abuts a back-up ring angled face. The inner seal point is between the seal and an internal shaft which rotates relative to a housing.

Abstract: A rotary distributor is for use in spreading solid particles and/or liquid from an agricultural machine. The rotary distributor comprises a round distributor having outlet holes arranged peripherally in the horizontal bottom of the housing and connected to outlet pipes 3, a first supply pipe 4 arranged centrally in the bottom of the distributor housing 1 for the supply of liquid under pressure and connected to a vertical, rotatably supported hollow rotor shaft 5 in flow communication with a first transverse hollow rotor arm 6 which has at least one angled, and downward-directed nozzle 7 that is level with the outlet holes 2. The distributor housing further comprises a means 10, 11 for introducing and distributing solid particles such as seed corn.

Abstract: A missile includes a control system having divert and attitude control system thrusters with control valves. Each of the control valves has a nozzle plate having a plurality of small nozzles therein. The nozzle plate includes a pair of portions, one of which is rotatable relative to the other. Control of flow through the nozzle plate may be effected by relative positioning of the portions of the nozzle plate. An upstream convergent portion of the nozzle plate may be fixed relative to the missile, with a downstream throat and/or divergent portion of the nozzle plate moveable. Movement of the movable portion of the nozzle plate may be accomplished by use of an actuator that is external to the missile body. The control valve provides a simple, lightweight and compact way of controlling flow from a divert thruster.

Abstract: A water sprinkler for irrigating lawn and garden areas has two axes of movement, one transverse to the other. A barrel moves or oscillates on one horizontal axis to direct water spray from nozzles carried on the barrel across the length of the area, and the nozzle outlets also simultaneously move or oscillate on axes transverse to the barrel axis to spray water across the width of the area. As the nozzle outlets move or oscillate in the two transverse directions, the ground area is irrigated uniformly over time by application of water in a criss-cross pattern. The area sprayed can be surprisingly large compared with single-axis oscillators, or the area may be limited to a single row or a narrow rectangular area, by adjustment of the barrel and outlet movement and/or the water pressure.

Abstract: The high-pressure multi-function head especially for water-cleaning machines comprises a first main body which exhibits a conduit for a washing liquid, extending along a longitudinal axis from an inlet to an outlet and a portion having a narrowed transversal section; a nozzle housed in the conduit; an auxiliary body inserted in the conduit and constituting a frustoconical seating for a front end of the nozzle; means for conveying the washing liquid interpositioned between the inlet and the portion having a narrowed transversal section and forming upstream of the nozzle at least one oblique jet with respect to the longitudinal axis in order to give the nozzle a rotating and conical motion with a vertex in the frustoconical seating; and means for regulating a trim of the head for translating the auxiliary body and the nozzle along the longitudinal axis between a retracted first operating position for obtaining a high-pressure rotating jet, an intermediate second operating position, for obtaining a high-pressure

Abstract: An evaporation device for increasing evaporation from a surface of a body of liquid, comprises at least one evaporation element having at least one evaporation surface wettable by the liquid and at least partially exposable to wind when wetted, so as to allow evaporation of the liquid from the evaporation surfaces whereby the total evaporation area of the surface of the body of liquid is increased.

Abstract: The present invention discloses an improved air nozzle of a pneumatic tool for being connected to the pneumatic tool that will not be tangled easily due to the rotation of the pneumatic tool during its operation, and thus preventing any hinder to the pressurized gas inputted from the air supply pipe into the pneumatic tool or any adverse influence to the efficiency of the operation. The invention comprises an air inlet member having one end connected to the pneumatic tool and the other end rotably connected to a rotary member, such that the rotary member rotates with respect to the air inlet member and drives the air supply pipe connected to the rotary member to rotate during the operation of the pneumatic tool, and thus the air supply pipe will not be tangled easily and the invention enhances the flexibility and convenience of the operation of the pneumatic tool.

Abstract: A rotor nozzle includes a nozzle housing having an inlet opening at one end and an outlet opening at another end and has a rotor which is arranged in a turbulence chamber and which is provided at its front end facing the outlet opening. A nozzle is supported in a cup bearing and has an inflow opening. A bypass device changes a radial or a tangential component of the liquid flowing into the turbulence chamber, which sets the rotor into rotation. A control surface is provided in the turbulence chamber. A restoring device is provided which is active between the front end of the rotor and the rear rotor end, wherein as the rotor rotary speed increases, the inclination of the rotor increases against the action of a restoration force of the restoring device and the restoring device reduces the rotor inclination as the rotor rotary speed decreases.

Abstract: The present invention is directed to a sprinkler apparatus and related methods for the distribution of fluid. The invention preferably includes a nozzle rotatably driven by a pressurized flow of fluid along a fluid path. The invention preferably includes a housing separating a magnetic drag coupling assembly from the fluid path. The coupling assembly preferably includes spaced apart magnets configured to exert an attractive force on each other to rotate one magnet in response to the rotation of the other magnet, and a resistive/drag force to oppose the continuous rotation of the nozzle. Pressure offsetting structures minimize or even neutralize the upward/downward forces that the flowing fluid otherwise would exert on the rotating shaft assembly.

Abstract: A shower head with structural features for providing a water spray pattern having revolving characteristics is disclosed. The shower head includes an inlet assembly connectable to a water source and a cooperatively engaged outlet assembly including a body having a front facing surface, an impeller having a plurality of blades and a rotator assembly having a spray surface defining a plurality of spray apertures. The rotator spray surface forms a portion of the front facing surface. A seal spacer disposed between the inlet assembly and the front facing surface has a plurality of radially spaced ports. Each port is axially transverse to a plane of the seal spacer. Water flow through the ports creates a multi-directional water current downstream from the spacer to drive the impeller and consequently, cause rotation of the rotator spray surface and water emission in a revolving spray pattern.

Abstract: The water misting system includes a stationary member 3, 4 having a flow path therein for transmitting water, the rotary swivel 5 in fluid communication with the stationary member, and one or more conduits 6, 7 in communication with the stationary member and extending radially outward from the swivel. A misting nozzle 8, 9 is provided at an outer end of each respective conduit, and has a central nozzle axis angled with respect to a central axis of a respective conduit for discharging mist while producing a tangential thrust for rotating the one or more conduits and the misting nozzle about the stationary member. According to the method of the invention, angling of the central nozzle axis of each misting nozzle with respect to a central axis of the respective conduit produces the tangential thrust to rotate the conduits and thereby mist a large area.

Abstract: A rotary sprinkler (10) including a water inlet, a water outlet arranged for rotation about a rotation axis (14), a water director associated with the water outlet and a watering pattern determiner associated with at least one of the water outlets and the water director. The sprinkler (10) operates to cause the sprinkler (10) to have a substantially non-repeated watering pattern extending over more than 360 degrees about the rotation axis. The watering pattern is asymmetric with respect to the rotation axis (14) and is rotated for each successive rotation of the water outlet about the rotation axis (14) with respect to the watering pattern of the preceding rotation by a predetermined amount, whereby the successive rotations increase the angular uniformity of watering about the rotation axis.

Abstract: A spraying head assembly for a massaging tub includes a housing, a cover, a water outlet valve seat, a water outlet valve cover, a vortex rotor, a bushing, a nozzle, an impulse rotor, and a motor. Thus, the water is pressurized by rotation of the helical blades of the vortex rotor and the helical plates of the water outlet valve seat to produce a strong water beam that is injected outward from the nozzle, thereby enhancing the massaging effect.

Abstract: A nozzle of a dishwasher reduces a space for installing a supplementary nozzle on a main nozzle by having first and second connectors coupled to be caught on each other between main and auxiliary nozzles. The nozzle assembly includes a main nozzle having a first coupling hole; an auxiliary nozzle, having a second coupling hole, for coupling with the main nozzle; a first interlocking device, having a first end, for coupling with the main nozzle at the first coupling hole, by being caught in the first coupling hole by the first end; and a second interlocking device, having a first end, for coupling with the auxiliary nozzle at the second coupling hole, by being caught in the second coupling hole by the first end and by having a second end to be caught on the first interlocking device.

Abstract: A device for cleaning an inner pipe which comprises a nozzle head comprised of a feed borehole axially disposed therein, at least two rotation nozzles communicating with the feed borehole, at least two cleaning nozzles communicating with the feed borehole and a shaft. A rinsing nozzle communicates with the feed borehole and extends upwardly at an angle from the longitudinal axis of the feed borehole. The shaft is received in an outer sleeve whereby when the device is inserted into an inner pipe and a medium is flowed through the borehole and out of the rotation nozzles a force is generated when the medium emerging from the rotation nozzles contacts the wall of the inner pipe which force causes the nozzle head to rotate.

Abstract: An improved rotating stream sprinkler of the type having a rotatable spray head with an offset nozzle port through which a water stream is projected outwardly, resulting in a reaction force for rotatably driving the spray head to sweep the water stream over a surrounding terrain area. The spray head is rotatably mounted on a body adapted for connection to a pressurized water supply, with interengaging bearing components providing predetermined friction brake torque resisting spray head rotation. By appropriately designing the nozzle port area and offset geometry, drive torque and brake torque is maintained at a substantially constant ratio for relatively slow and substantially constant spray head rotational speed over a range of normal water supply operating pressures. A downthrust spring retains the bearing components in engagement when the water supply is turned off, but does not contribute to friction brake torque when the water supply is turned on.

Abstract: A self-adjusting rotating joint (1), especially for liquid distribution devices, including a first substantially tubular element (3), adapted to be connected to a liquid feeding inlet pipe, a second substantially tubular element (2), adapted to be connected to a liquid distribution nozzle, connecting means (6, 25) adapted to connect pivotally first (3) and second element (2), so as to allow their reciprocal rotation around a common axis (V), with limited axial relative displacement, transmitting a reaction force generated by the jet and lying on a plane passing through said common axis (V), braking means (15, 16, 17, 18, 20, 21, 22, 23, 30, 31) to counter the relative rotary motion of the element (2, 3) about the rotation axis (V). The rotating joint is characterised in that the connecting means are made of a substantially cylindrical tubular element (6, 25) with substantially constant outer diameter.

Abstract: A high-pressure rotary nozzle includes a magnetic coupling for the purposes of driving a rotor body within the nozzle housing. The nozzle housing defines an internal chamber, and a propulsion ring is retained within the housing such that a liquid introduced into the propulsion ring causes the propulsion ring to rotate and passes into the chamber. The rotor body is pivotally supported within the chamber and is operably coupled to the propulsion ring such that the rotor body moves along with the propulsion ring. The rotor body rotates about the housing, such that the liquid exits the chamber in a rotating jet.

Abstract: A rotary nozzle for compressed air foam (CAF) has a barrel mounted for rotation about an axis perpendicular to its longitudinal axis. The barrel is mounted to a CAF supply conduit and has a cross-sectional area substantially larger than the cross-sectional area of the conduit. Two non-equal orifices in the barrel, located on the opposite sides of the axis of rotation, distribute CAF such that it covers an almost complete, typically a circular area on the ground.

Abstract: The invention provides a rotor nozzle, comprising a casing and a rotor body arranged therein. The rotor body has a flow-through channel and a spherical bearing part in a step bearing surrounding an exit opening of the casing. An end part closes the casing and has several selectively closable passages arranged therein which open from an inlet side into the interior of the casing or into flow channels in the casing leading to additional outlets. The end part widens in steps from the interior to the inlet side, and is inserted into a stepped receiving opening. A seal is provided between the end part and the inner wall of the receiving opening. An outlet for a passage of the end part is arranged in the area of at least one step and a flow channel begins in the casing in the area of this step.

Abstract: A pivot flow joint for high-pressure fluid-flow devices of the type including a rotating flow member connected to a non-rotating flow member. The pivot flow joint includes first and second axially-aligned seal bushings secured to the non-rotating and rotating flow members, respectively, the first and second seal bushings having opposed adjoining contact surfaces. The seal bushings are biased toward one another for sealing engagement at such contact surfaces. Certain preferred embodiments involve spring-biasing the seal bushings toward one another and/or use of the high-pressure fluid to exert axial pressure for that purpose. The two seal bushings, which are preferably ceramic and of identical size and shape, carry out the sealing function of the pivot flow joint in the transition between the non-rotating and the rotating members of such joint.

Abstract: A spray head which includes a plurality of interconnected hollow spindles wherein each of the hollow spindles is arranged to be axially rotated and means is provided for fluid flow through the spindles sequentially. Each of the spindles is provided with at least one motor configured so as to facilitate, in use, 360° rotation of the hollow spindle about a central longitudinal axis thereof, each hollow is substantially perpendicular to an adjacent hollow spindle.

Abstract: A high-pressure rotary nozzle includes a magnetic coupling for the purposes of driving a rotor body within the nozzle housing. The nozzle housing defines an internal chamber, and a propulsion ring is retained within the housing such that a liquid introduced into the propulsion ring causes the propulsion ring to rotate and passes into the chamber. The rotor body is pivotally supported within the chamber and is operably coupled to the propulsion ring such that the rotor body moves along with the propulsion ring. The rotor body rotates about the housing, such that the liquid exits the chamber in a rotating jet.

Abstract: A dishwasher spray arm hub assembly includes a hub having a first central bore extending therethrough and a conduit feed extending therefrom. The conduit feed is in flow communication with the central bore and a venturi insert is disposed in the hub central bore. The venturi insert also includes a second central bore extending therethrough. The first bore and the second bore together form a fluid bypass channel in flow communication with the conduit feed. Therefore, a lower spray arm assembly and a spray arm conduit for upper spray arm assemblies may be simultaneously fed through the hub assembly.

Abstract: A water spray system for dishwasher with an upper dish rack and a lower dish rack, with each said dish rack being mounted for selective movement forwardly out the open front. A spray tube is rotatably mounted on the bottom of each lateral side portion of each said dish rack and has a plurality of spray outlets spaced along the tube and directed generally tangentially in the same direction for causing rotation of the tube. A water supply manifold extends up the rear wall of the dishwasher. A releasable water connection device and conduits mounted on each dish rack connect the manifold to the spray tubes for supplying the water from a pump. Spray spinners are centrally mounted below each dish rack. The spray tubes provide a thorough spray at the lateral sides that the spinners may not reach in a very wide dishwasher. Other rotating spray tube arrangements are also disclosed.

Abstract: In order to facilitate the accommodation of additional passages whilst retaining small dimensions in the case of a rotor nozzle, in particular, for a high-pressure cleaning device, comprising a casing and a rotor body which is arranged therein, has a flow-through channel and is accommodated with a spherical bearing part in a step bearing surrounding an exit opening of the casing, an end part which closes the casing on the side located opposite the step bearing and in which several, selectively closable passages are arranged which open from an inlet side into the interior of the casing accommodating the rotor body or into flow channels in the casing which lead to additional outlets of the casing, it is suggested that the end part widen in steps in its longitudinal direction leading from the interior of the casing to its inlet side, that the end part be inserted into a stepped receiving opening in the casing which widens correspondingly, that a seal be provided between end part and the inner wall of the receivi

Abstract: A cleaning device for a jet pump nozzle in a nuclear reactor. The cleaning device includes a tubing section having a first end, a second end and a mid-section between the first end and the second end, a pole adapter coupled to the tubing section at the mid-section, and a hydrolaze head assembly coupled to the first end.

Abstract: A sprinkling device includes a tube coupled to a water reservoir, a sprayer head rotatably attached to the tube with a housing and rotatable relative to the tube by the water from the tube and flowing out through the sprayer head to form a sprinkling water. A light device is disposed in the housing for lighting the sprinkling water and for generating a lighted water screen and for decorative purposes. The lighted sprinkling water may be used for warning people nearby and for preventing the people from being wetted by the sprinkling water.

Abstract: A rotating bearing assembly for a sprinkler coupled to a pipe segment is disclosed. The bearing assembly has a stem which permits fluid flow. The stem has a bottom open end with a collar and a top open end which is connected to a cap. The cap allows connection to a sprinkler head which rotates from water pressure through the pipe segment. The stem conduit rotates in relation to a sleeve which is frictionally fitted within the pipe segment. A plurality of washers is located between the collar and the bottom of the sleeve to provide a water seal under high pressure conditions. Another group of washers is located between the top of the sleeve and the cap to provide additional sealing under low pressure conditions.

Abstract: A method and apparatus for removing coatings from the hull of a ship using a steered magnet vehicle supported by the adhesion force only of a permanent magnet to the surface to be treated. Using an ultra-high pressure water jet system and method for removing coatings, paint, deposits, organic and inorganic from hulls without harming the substrate material and to provide a superior surface for the application of subsequent coatings.

Abstract: A wind-driven decorative feature mounted inside the rotating head of an upright, standpipe-type sprinkler. The wind-driven device is mounted inside the sprinkler head for rotation independent of the rotation of the spray tubing portion of the sprinkler head, and is generally located in the region bounded by the rotation of the sprinkler head itself and the spray pattern emitted by the sprinkler head.

Abstract: A spa jet for delivering water from an upstream source of water under pressure to the interior of a spa, the spa jet having a housing with an inlet tube communicating with the source of water and a chamber wall defining a generally cup shaped chamber. A retaining ring is connected to and inside of the chamber wall. A form having an annular upstream portion is fixed against axial movement between the chamber wall the retaining ring. The form has a downstream portion extending from the annular portion in the form of a shaft aligned with the axis. The spa jet also has a rotor with a generally cylindrical body concentric with the axis, the body having a bearing surface extending around the shaft which supports the body for rotating. At least one nozzle passage extends through the rotor which collects water from the inlet tube and directs the water as a water jet into the spa at an angle sufficient to impart a turning moment to the rotor about the axis.

Abstract: The present invention provides a power washing system capable of indoor and outdoor operation while remaining convenient for use by the consumer. The present invention provides a housing designed to move over surface areas to be cleaned and adapted for spraying and retrieving water under high pressure. The housing being equipped with one or more bulkhead fittings capable of receiving vacuum hoses. These vacuum hoses may be attached to the housing such that waste water created during cleaning operations may be recovered and drawn upwardly through the vacuum hoses. The housing is attached to a support member having a trigger member adapted to control water flow through one or more water hoses attached thereto.

Abstract: A rotatable aerosol product 10 comprising an aerosol product 11 and a rotatable stand 12 attached to the bottom part of the aerosol product, wherein spray continues during rotation and the rotation frequency is 35 frequencies/minute or lower. A spray hole 13a of a nozzle 13 is positioned eccentrically from the rotation center and rotated by counteraction of spray from the nozzle 13. Rotation frequency is regulated by a friction force between a rotation member 31 and a fixed member 32 or a ball 33.