Abstract: A high pressure nozzle adapted to clean a tube includes an elongated body having a proximal end and a distal end, and defines one or more elongated channels along an exterior, extending from the distal end to the proximal end, and includes a head rotatably mounted to the body adjacent the distal end. The head includes jets that expel liquid at a pressure of at least 1000 psi to clean material from a wall of a tube and/or rotate the head relative to the body about a longitudinal axis. The channels are operable in an evacuation mode in which a portion of liquid is conveyed through the channels away from the head toward the proximal end to prevent and/or impair hydraulicing of the nozzle in the tube when the nozzle encounters a blockage within the tube. Related methods of use of the nozzle also are provided.

Abstract: A sprinkler toy device and method are provided. In use, a flow stream is received at a connector of a sprinkler base. Next, the flow stream is conveyed to a rotatable arm, wherein the rotatable arm allows for 360 degree movement in a first axis direction. Additionally, the flow stream is then conveyed to a flexible tubular member connected to a metal coil, wherein the metal coil allows for movement in a second axis direction, and the flexible tubular member is capable of movement in the first axis direction and the second axis direction. Further, the flow stream is conveyed to one or more objects connected to the flexible tubular member and the flow stream is expelled through one or more spray valves attached to each of the one or more objects.

Abstract: A high pressure surface cleaner includes a housing having an open end, a high pressure coupling in fluid communication with the housing and having a first end and a second end, the first end configured to receive a high pressure water source, and a supply conduit rotatably secured to the second end of the high pressure coupling and configured to rotate about the high pressure coupling defining a horizontal plane within the housing. The cleaner also includes first and second nozzles having a vertical axis therethrough and secured proximate to the first and opposing second ends of the supply conduit, respectively, the vertical axis of the first and second nozzles approximately normal to the first horizontal plane, and a directional nozzle coupled to the supply conduit and having a directional outlet orientated to cause the supply conduit with the first and second nozzles to rotate when discharging water.

Abstract: According to one aspect, embodiments of the invention provide a sprinkler comprising a base, a connector coupled to the base and configured for coupling to an external water supply, and a body rotatably mounted on the base and in fluid communication with the water supply through the connector and the base, the body including one or more orifices configured to spray, in a defined pattern, water received from the external water supply, and further including at least one hole configured to spray, in a substantially horizontal direction, water received from the external water supply, wherein the spray exiting from the at least one hole causes the body to rotate, and wherein the defined pattern of the spray exiting the one or more orifices is a spiral or helical-shaped spray.

Abstract: A method for water jet stripping and recontouring of a coated article of manufacture is provided. The method includes dimensionally scanning the coated article and establishing a three-dimensional model for the coated article. The method further includes establishing a set of reduced dimensional profiles for recontouring and then analyzing whether the reduced profiles are satisfactory for subsequent operation. A jet spraying program is established for removal of the coating and the surface base material to each predetermined reduced dimensional profile.

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 fluid pressure at the shaft inlet is balanced by allowing passage of a small amount of the pressurized fluid 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 fluid 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 fluid through a tapered or frusto-conical region between the shaft and housing. This further provides a fluid 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 engine and high pressure pump are mounted onto a wheeled chassis. High pressure water is distributed to a rotating wand and nozzle assembly on the wheeled chassis so that as the chassis is moved along a linear path, high pressure water is sprayed onto an underlying surface to clean the surface. Optional diffusion plates may be used to prevent high pressure water from being sprayed directly onto the underlying surface in part of the rotational path defined by the wand and nozzle assembly.

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 revolving sprinkler comprises a rotatable turret assembly revolving around a rotation axis and formed with mouthpiece(s) suited to sprinkle liquid under pressure. The revolving sprinkler accommodates exchangeable mouthpieces with different throughputs-nozzle to rotation axis distance relationships, without changing a rotation velocity of the turret assembly.

Abstract: A rotary nozzle for a cleaning device, specifically for a high pressure cleaning device. The device has a housing with a fluid inlet and outlet for the passage of the fluid. Within the housing, there is a nozzle body traversed and rotated by the fluid. The rotary nozzle body is designed so that it will not be in direct contact with the housing's inner surface during rotation, but rather a fluid film is built up around the nozzle body. The fluid film is created because the nozzle body does not rotate around its own center axis, but only around the center axis of the housing.

Abstract: The present invention provides a turbine with dual sets of fins and a stator assembly for directing water onto both sets of fins. The water flow directed to the first set of fins generates slightly more force than the water flow directed to the second set of fins. In this manner, the opposing forces generated by the water flow maintain a more uniform and constant speed of the turbine.

Abstract: An engine and high pressure pump are mounted onto a wheeled chassis. High pressure water is distributed to a rotating wand and nozzle assembly on the wheeled chassis so that as the chassis is moved along a linear path, high pressure water is sprayed onto an underlying surface to clean the surface. Optional diffusion plates may be used to prevent high pressure water from being sprayed directly onto the underlying surface in part of the rotational path defined by the wand and nozzle assembly.

Abstract: A multiple nozzle swivel assembly for mounting on a cable support stretched across the interior of a chamber to be scrubbed with high velocity jet streams or stretched along an array of objects to be cleaned as the swivel assembly traverses the cable from one end to the other. The cable passes through a coaxial bore in an elongated shaft carrying both a relatively stationary an input member for supply of high pressure liquid to the assembly and a rotatable output nozzle-carrying spray head member. The shaft is monolithic with multiple angularly spaced bores around the central bore and parallel thereto and sealed from the central bore carry high pressure liquid from the input member to the output spray head member with very low drag bearings and liquid seals being provided between relatively rotating liquid carrying components. The assembly includes multi-directioned nozzle elements on a rotatable spray head. Positive drive to rotate the spray head is achieved with a rotational speed controlling motor.

Abstract: A rotatable high pressure tool for cleaning hollow objects by forcing a high pressure fluid such as water from nozzles to create cleaning jet streams and use jet reaction at the tool to continually change the direction of the jet nozzles about a longitudinal axis of the tool while the jets are carried by a cross body rotating about an axis essentially perpendicular to the longitudinal axis. Each of the nozzles provides the same amount of reaction torque to rotate the cross body about its axis. This torque is selectively adjustable at the tool before use by similarly releasing, changing and reclamping the orientation of all nozzles relative to the cross body and by changing the discharge diameters of uniformly sized nozzle tips. The adjustable nozzles are interconnected by gearing so that the changes in orientation of all nozzles during adjustment will be the same.

Abstract: A device for dispensing water for play and amusement which can have the configuration thereof modified in order to spray many different types of patterns of water outwardly therefrom which includes a base member with a base conduit extending therethrough with optionally oppositely directed flow patterns for base stability and a rotatable coupling secured to the outlet of the base conduit for receiving water and for allowing rotation of a rotatable spray head assembly which is attached to said rotatable coupling. The rotatable spray head which is movable about an axis of rotation includes one or more spray section members having spray nozzle outlets which can have the outward direction of water dispensed therefrom to be controlled in such a manner as to vary the speed of rotation of the rotatable spray head assembly as well as to vary the pattern of water emitted therefrom.

Abstract: A rotary head structure of a lawn sprinkling seat, including a base seat, a sprinkling head and a T-shaped locking body. The base seat is formed with a central water-outgoing connector. The sprinkling head has three radially extending water-outgoing passages spaced by equal angle and an insertion post on bottom face for fitting into the locking body which is screwed into the water-outgoing connector of the base seat. The water is conducted from the base seat to the sprinkling head to flow out from the water-outgoing passages thereof. A free end of each water-outgoing passage is formed with a large diameter hole having a conic peripheral wall for receiving a valve post of a hollow ball valve. The valve post of the ball valve is first passed through a tapered opening of a cylindrical valve sleeve and then fitted into the large diameter hole of the water-outgoing passage and fused therewith by ultrasonic wave.

Abstract: A one-piece wash arm is provided for a dishwasher. The wash arm has an open channel through which water from a water supply hose is directed. The channel has opposite curved ends with discharge openings through which the water is sprayed onto objects to be washed in the dishwasher. The flow of water through the channel and the curved ends imparts rotation to the wash arm. In a preferred embodiment, the open channel is downwardly facing, and the water is substantially maintained in the channel due to the water pressure, velocity and surface tension. In an alternative embodiment, the open channel is directed upwardly.

Abstract: A dishwasher with a spray agitator (1) rotating about an axis (2) in alternating opposite directions due to the effect of two nozzles with opposite thrusts (6,7). The nozzles are alternately fed with water under pressure by means of a rotating shutter (13). The shutter is made to rotate by reduction gears (12,14) and a rotor (11) activated by a nozzle (8) provided inside the agitator (1). The dishes are washed efficiently even if a mechanical obstruction interferes with the agitator.

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

Abstract: A rotary sprinkler is provided having a stationary base portion, with a water inlet for attachment to a conventional garden hose, and a vertically oriented water outlet having a body portion rotatably secured thereto. A plurality of generally cylindrical arms extend radially from the body portion, with each arm having a nozzle unit disposed on the distal end thereof. Each nozzle unit includes a plurality of nozzles formed therein, and may be selectively positioned longitudinally so as to expose a different number of such nozzles to the water supply. The nozzle unit may be rotated relative to its respective arm, so that the water discharged through the nozzles operates to drive the body/arm assembly about the base. The rotational velocity of the body/arm assembly may be controlled by the user of the sprinkler by adjusting the rotational orientation of the plurality of nozzle units.

Abstract: Cleaning underlying surfaces, especially irregular surfaces, such as shake roofs, grooved pavements or ramps, and the like. Mobile apparatus under the guidance of an operator brushes the underlying surface and sprays water or other cleaning liquid onto it in a rotating pattern as the operator traverses the apparatus and, thus, the cleaning locus relative to the supporting surface. A "compass point" wheel arrangement enables the apparatus to be positioned with one wheel off the edge of the supporting surface to clean over the edge while maintaining three-point stability, whereas temporary removal of a wheel enables close approach to clean an intersection of the underlying supporting surface and an adjoining wall or other adjacent upright surface.

Abstract: A handheld water driven shower massager unit is provided which includes a housing having an internally disposed rotatable nozzle which is caused to rotate by the high velocity discharge of water from the nozzle. By eccentrically weighting the water discharge nozzle, an oscillating vibrational motion is applied to the entire device, thereby providing a massaging effect when pressed against the user. When held away from the user, the unit functions as a source of water spray for cleansing. The performance and characteristics of the unit can be modified through varying the flow rate of water through the unit, by changing the nozzle configuration, or by changing the angle of water discharge from the nozzle. Additionally, various cleansing and massaging pads can be removably attached to the unit in accordance with the needs of the user.

Abstract: A water motor for an irrigation system includes a sleeve which can be replaced should it become worn due to abrasion of contaminants found in the irrigation water.

Abstract: A rotatable nozzle construction comprises a fixed hollow shaft which has a passage extending therethrough for the flow of the fluid. The distributor head is rotatably mounted on the shaft and it has at least one radially extending distributor head flow passage with an inner end which communicates with a radially extending portion of the shaft flow passage and an outer end which communicates with an annular passage defined around the periphery of a nozzle holder which is rotatably mounted at the periphery of the distributor head. The nozzle holder includes a generally radially extending distributor flow passage which terminates in a nozzle discharge which is at right angles to the axis of the shaft. The nozzle holder may be rotated on the distributor head so as to position the nozzle at any desired angle and the nozzle holder may be locked in the selected position.