Abstract: A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes a housing including an inlet for pressurize water and an outlet downstream of the inlet, a valve member, operable to extend and reduce an arcuate opening at the outlet of the housing, wherein the size of the arcuate opening indicates the arc of coverage of the sprinkler head nozzle assembly and a rotating distributor, mounted on a central shaft extending through the housing and the valve member, and operable to deflect a flow of water from the arcuate opening out of the nozzle assembly.

Abstract: A pressure regulator for use in an elbow connector for use with a sprinkler assembly including a pressure responsive member, movably mounted in the elbow connector and movable from an open position allowing flow of water into the sprinkler assembly and a closed position where the bottom edge of the pressure responsive member blocks the flow of water into the sprinkler assembly. The pressure responsive member is biased in the open position and moves into the closed position when downstream water pressure exceeds a predetermined value.

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: An adapter element for a solenoid valve assembly in an irrigation system includes an integral water turbine generator including an impeller positioned in an outlet flow path of a solenoid assembly thereof such that the impeller rotates when water flows to generate electricity.

Abstract: A rotary sprinkler in accordance with an embodiment of the present disclosure includes a riser with a nozzle assembly rotatable mounted thereon. The nozzle assembly includes a pressure regulator and flow control element.

Abstract: A simple hearing enhancement device that takes the normally adequately loud sound levels and optimizes selective frequency gain of the patient's ear passage to improve speech comprehension.

Abstract: A pressure regulator for use in an elbow connector for use with a sprinkler assembly including a pressure responsive member, movably mounted in the elbow connector and movable from an open position allowing flow of water into the sprinkler assembly and a closed position where the bottom edge of the pressure responsive member blocks the flow of water into the sprinkler assembly. The pressure responsive member is biased in the open position and moves into the closed position when downstream water pressure exceeds a predetermined value.

Abstract: An adapter element for a solenoid valve assembly in an irrigation system includes an integral water turbine generator including an impeller positioned in an outlet flow path of a solenoid assembly thereof such that the impeller rotates when water flows to generate electricity.

Abstract: An adjustable spray nozzle with adjustable arc of coverage as well as spray elevation angle and flow rate. A very simple adjustable arc of coverage spray nozzle configuration is also disclosed which may be easily assembled for a particular precipitation rate and/or range of coverage at a selected nominal pressure. Also disclosed is a simple fixed arc of coverage spray nozzle with selectable ranges for a particular precipitation rate.

Abstract: An adapter element for a solenoid valve assembly in an irrigation system includes an integral water turbine generator including an impeller positioned in an outlet flow path of a solenoid assembly thereof such that the impeller rotates when water flows to generate electricity.

Abstract: A cyclone vacuum cleaner includes two suction fan stages, three stages of separation, plus a HEPA filter and allows capturing of wet or dry material in bag-less or bagged configuration in non-porous paper or plastic bags as well as ordinary garbage bags with pull tie tops for removal, with no suction loss. A steam generator may be added to provide substitute working vacuum fluid to the normal air for dirt pickup. Acoustic sound dumping may also be provided in the architecture of the assembly.

Abstract: A hearing enhancement device using wave amplification in the outer ear cavities of a user and transducer placement to provide frequency based enhancement of speech and music sounds without blocking the user's auditory canal.

Abstract: A simple hearing enhancement device that takes the normally adequately loud sound levels and optimizes selective frequency gain of the patient's ear passage to improve speech comprehension.

Abstract: A cone valve assembly including an upper valve member with a conical top portion and a stepped and spiraled top surface and a lower valve member including a central opening with a stepped and spiraled valve surface surrounding the central opening. The upper valve member is mounted in the lower valve member such that the lower valve member is rotatable and axially movable relative to the upper valve member. Rotation of the lower valve member allows for the adjustment of an arcuate slot opening that provides a conically shaped discharge stream of water from the cone valve nozzle assembly directly onto the rotating distributor to provide the desired arc of sprinkler coverage.

Abstract: A simple hearing enhancement device that takes the normally adequately loud sound levels and optimizes selective frequency gain of the patient's ear passage to improve speech comprehension.

Abstract: A hearing enhancement device using wave amplification in the outer ear cavities of a user and transducer placement to provide frequency based enhancement of speech and music sounds without blocking the user's auditory canal.

Abstract: A cone valve assembly including an upper valve member with a conical top portion and a stepped and spiraled top surface and a lower valve member including a central opening with a stepped and spiraled valve surface surrounding the central opening. The upper valve member is mounted in the lower valve member such that the lower valve member is rotatable and axially movable relative to the upper valve member. Rotation of the lower valve member allows for the adjustment of an arcuate slot opening that provides a conically shaped discharge stream of water from the cone valve nozzle assembly directly onto the rotating distributor to provide the desired arc of sprinkler coverage.

Abstract: A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.

Abstract: A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.

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 sprin