Abstract:
A nozzle positioning assembly includes a first support shaft, a second support shaft, a first position adjustment assembly, a second position adjustment assembly, and a hub. The first and second support shafts have respective bodies with a center aperture, a spherical first end, and a second end opposite the spherical first end. The first and second position adjustment assembly include first and second link mounting ears positioned circumferentially from one another. The first position adjustment assembly is adapted to be affixed to the second end of the first support shaft and the second position adjustment assembly is adapted to be affixed to the second end of the second support shaft. The hub has a first end configured to receive and rotatably retain the spherical first end of the first support shaft, and a second end configured to receive and rotatably retain the spherical first end of the second support shaft.
Abstract:
A restriction valve in accordance with an embodiment of the present invention includes a valve body adapted to be positioned at an inlet of the sprinkler, wherein the valve body includes a central opening through which water flows into the sprinkler, a rib extending downwardly from the valve body at a location beyond the margin of the central opening, a valve member configured to cooperate with the central opening to open and close the valve, wherein the valve member includes a valve stem extending downwardly from the valve member, and positioned and configured to be movably supported in a guide ring formed at a lower end of the rib, wherein the valve stem is movable vertically to move the valve member to its open and closed positions and a resilient member biasing the valve stem such that the valve member remains in an open position until water pressure pushing against the valve member reaches a predetermined level to move the valve member into the closed position to restrict the flow of water into the sprinkler
Abstract:
A sprinkler assembly is disclosed, having a flow control valve accessible from an exterior of the assembly, a backflow preventer valve that prevents water and debris from being sucked into a sprinkler when water pressure stops, and a safety valve that prevents watering when the sprinkler is missing from the assembly.
Abstract:
Disclosed is a rotary nebulization device installed to a container that contains a liquid to be nebulized, and the rotary nebulization device includes a main body, an electric connection ring, an nebulization ring and a rotary ring. The main body contains a power supply, the electric connection ring, the nebulization ring and the rotary ring sequentially installed on a side of the main body, and the electric connection ring has a first contact electrically coupled to the power supply, and the nebulization ring has an nebulization module electrically coupled to the first contact, and the rotary ring has a second contact corresponding to the first contact. The corresponding container has an opening portion and a liquid storage slot, and the rotary ring is provided for switching the connection and electric conduction between the liquid storage slot and the nebulization module to improve the convenience of operation.
Abstract:
A dispenser for liquid to pasty substances has a pumping chamber and a dispensing tube movable between a rest position and a dispensing position during pumping. In the rest position a covering part connected to the dispenser covers a dispensing opening of the dispensing tube. During pump actuation, at least part of the dispensing tube moves perpendicular to the pumping movement while traversing the movement path of the covering part, which simultaneously moves relative to the dispensing tube. The covering part can be inwardly offset from a dispenser wall part that has a window-like opening associated with the covering part. In the rest position the covering part can be aligned with the opening. In the dispensing position the covering part can at least partially uncover the opening to expose at least part of the dispensing tube in the opening to discharge substance through the opening.
Abstract:
A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
Abstract:
In some embodiments, a sprinkler head is disclosed. The sprinkler head can include a spray stem comprising an upper stem rotatably coupled to a base stem; a spray nozzle coupled to a distal end of the upper stem; and a connector for removably coupling the sprinkler head to a pressurized liquid source. An interior cavity of the base stem can be in fluid communication with an interior cavity of the connector, and the upper stem can rotate between an operational position where an upper stem interior cavity is in fluid communication with the base stem interior cavity and a maintenance position where the upper stem interior cavity is not in fluid communication with the base stem interior cavity. A pop-up sprinkler head including the spray stem described herein is also described.
Abstract:
A center pivot sprinkler system includes a sprinkler arm to be mounted at a pivot point at a first end of the sprinkler arm, the sprinkler arm defining a water conduit. A motive source can move the sprinkler arm in a circular motion about the pivot point. An end nozzle is supported at a second end of the sprinkler arm, and in fluid communication with the water conduit. A control valve is positioned between the water conduit and the end nozzle, and a control valve positioner can position the control valve. A position determining device determines the position of the end nozzle in a circular arc about the pivot point. A processor polls the position determining device to determine a then-current position of the end nozzle and determines a flow of water to be issued from the end nozzle as a function of the then-current position of the end nozzle.
Abstract:
An irrigation sprinkler includes an outer case, a riser telescopically extensible from the outer case, and a nozzle at an upper end of the riser. A coil spring surrounds the riser and normally holds the riser in a lower retracted position within the outer case. The coil spring is dimensioned and configured to permit extension of the riser to a raised upper position when pressurized water is introduced into the outer case. A shock absorber is positioned between a lower end of the riser and a rigid structure in the lower end of case for lessening the forces otherwise exerted on the riser during rapid retraction of the riser.
Abstract:
A cleaning head for an in-floor pool cleaning system includes a sleeve with a top opening and an insert configured to be retained within the sleeve. The insert has a first body portion with an aperture wherein the first body portion is configured to fit through the top opening, and a second body portion that is configured to not fit through the top opening. A passage runs through the insert to the aperture. The insert has a first position in which it is retained in the sleeve. When water pressure is applied to the bottom of the cleaning head, the insert is moved upward to a second position so the aperture extends beyond the top opening in the sleeve and pressurized water exists the aperture to move debris. The cleaning head also includes a conical spring to bias the insert towards the first position.