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| Number | Title | Issue Date |
| 7819339 | Rotary propulsion nozzle set A self-governing spray apparatus for irrigation or cleaning purposes is provided. A spray nozzle at the end of a moment arm and substantially perpendicular to an axis of rotation creates a reaction torque to distribute a spray by spinning. A hinged member thrust int... | 10/26/2010 |
| 7624935 | Distributor plate and diffuser plate on sleeved shaft A water distribution plate and diffuser plate assembly for distributing a stream emitted from a sprinkler nozzle includes: a nonrotatable shaft having one end attached to a sprinkler component and an opposite end supporting first and second plates in axially spaced ... | 12/01/2009 |
| 7597273 | Speed control apparatus for a rotary sprinkler A turbine for a sprinkler is disclosed for self-governing its rotational velocity. As a rate of fluid through the sprinkler increases, particularly when air is used to flush the sprinkler system, a portion of the turbine shifts outwardly so as to decrease alignment ... | 10/06/2009 |
| 7546959 | Cleaning nozzle 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 b... | 06/16/2009 |
| 7416139 | Speed limiting turbine for rotary driven sprinkler A speed limiting mechanisms for turbine-driven fluid distribution apparatus usable with compressible fluid such as compressed air and incompressible fluid such as water. In one form, a flow restrictor is located in the turbine discharge flow path, with the turbine d... | 08/26/2008 |
| RE40440 | Micro-stream rotator with adjustment of throw radius and flow rate A rotating stream sprinkler including a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along the shaft upstream of the rotor plate; the rotor plate formed with a chamber and one end of the shaf... | 07/22/2008 |
| 7395977 | Sprinkler apparatus A sprinkler apparatus 10 for providing more even coverage of a sprinkled area with water which is achieved by a different speed of rotation of a water deflector 13 relative to a water diffuser 12 in a wobbling sprinkler head. A diffuser head ... | 07/08/2008 |
| 7337988 | Regulating turbine for sprinkler 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. I... | 03/04/2008 |
| 7316363 | System and method for delivering cryogenic fluid According to an embodiment of the present invention, a rotating nozzle assembly includes a rotatable shaft having a bore to transport a cryogenic fluid therethrough. The rotatable shaft has an upstream portion associated with a feed chamber and a downstream portion.... | 01/08/2008 |
| 7299999 | Rotating stream sprinkler with torque balanced reaction drive 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 surrou... | 11/27/2007 |
| 7273188 | Internal self-rotating fluid jetting nozzle An embodiment of an internal self-rotating fluid nozzle includes a rotor rotatably moveable within a nozzle body cavity. The rotor may include a jewel holder that carries at least one jewel member and spins against a rotor seat disposed near the front of the cavity.... | 09/25/2007 |
| 7246756 | Transverse axes oscillating water sprinkler with cam driven, oscillating nozzles 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 o... | 07/24/2007 |
| 7226003 | Rotary drive sprinkler with flow control and shut off valve in nozzle housing A flow shut off or throttling valve is provided in a sprinkler nozzle housing to enable a nozzle to be changed without having to turn off a flow pressure source. The valve intersects a flow path through the nozzle housing and has an opening such that when the openin... | 06/05/2007 |
| 7201238 | Low friction face sealed reaction turbine rotors Rotary jetting tool including a rotor with axially-opposed pressure-balanced mechanical face seals. Vented upper mechanical face seal enables the rotor to be operated with the relativity low starting torque achievable using reaction forces from offset jets energized... | 04/10/2007 |
| 7198456 | Floating head reaction turbine rotor with improved jet quality A rotary jetting tool including a pressure-balanced rotor, which is achieved using a vented volume. Axial movement of the rotor relative to the housing caused by pressure imbalances acting on the rotor selectively uncovers or opens a vent that places the volume in f... | 04/03/2007 |
| 7168634 | Debris resistant collar for rotating stream sprinklers A sprinkler head having a deformable member forming a collar is disclosed. The deformable member allows the sprinkler head to resist entry of foreign grit or matter within the sprinkler head, and allows the sprinkler head to eject or force out foreign matter from wi... | 01/30/2007 |
| 7159795 | Adjustable arc, adjustable flow rate sprinkler A sprinkler head includes a base; an arc adjustment ring; a nozzle and a stream deflector supported by an elongated stem carried by the base, the nozzle and the stream deflector cooperating to define an adjustable nozzle orifice; a water distribution plate secured t... | 01/09/2007 |
| 7156322 | Irrigation sprinkler unit with cycling flow rate An irrigation sprinkler unit includes a tubular housing enclosing a speed reducing drive which is driven by a water actuated turbine wheel and rotates a rotary nozzle head at a substantially slower speed. The drive also rotates a tubular valve member within an annul... | 01/02/2007 |
| 7118051 | Rotor nozzle 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 cu... | 10/10/2006 |
| 7111796 | Sprinkler apparatus and related methods 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 s... | 09/26/2006 |
| 7104472 | Constant velocity turbine and stator assemblies A rotary sprinkler system for both above-the ground and pop-up rotary sprinkler systems that controls the rate of nozzle rotation is disclosed. To maintain a relatively constant and controlled nozzle rotation, one or more chamfered spokes are included on the turbine... | 09/12/2006 |
| 7063274 | Cleaning nozzle A nozzle for use in cleaning applications is provided. The nozzle has a rotatably supported nozzle body, on which one or more nozzle orifices are provided. The nozzle housing itself serves as the rotary drive, which is carried along by a fluid led into the housing w... | 06/20/2006 |
| 7032836 | Adjustable arc, adjustable flow rate sprinkler A sprinkler head includes a base; an elongated stem having an inlet supported within the base; a nozzle and a stream deflector supported within the stem, the nozzle and stream deflector cooperating to define an arcuate orifice; a water distribution plate supported o... | 04/25/2006 |
| 6960911 | Strain sensor A strain sensor includes a sensor section having a magnetic material provided on one surface of a conductor, the magnetic material being formed integrally with the conductor and having a magnetic strain constant with an absolute value larger than 1×10−7 | 11/01/2005 |
| 6921030 | Constant velocity turbine and stator assemblies A rotary sprinkler system for both above-the ground and pop-up rotary sprinkler systems that controls the rate of nozzle rotation is disclosed. To maintain a relatively constant and controlled nozzle rotation, one or more chamfered spokes are included on the turbine... | 07/26/2005 |
| 6906513 | Rotary motion detector A rotary motion detector includes an electrically conducting induction element formed essentially as a hollow cylinder and rotatable about a rotation axis. An excitation assembly applies an inhomogeneous magnetic field and induces an eddy current in the induction el... | 06/14/2005 |
| 6899287 | Rotary sprinkler An irrigation sprinkler with two viscous brakes. The viscous brakes work in conjunction with each other to maintain a low RPM and also to rotate a water stream diffuser. The water stream is first directed toward a deflector that offsets the stream and angles it towa... | 05/31/2005 |
| 6827291 | Reversible adjustable arc sprinkler A reversible, adjustable arc sprinkler head comprising a sprinkler body incorporating a fixed nozzle; a spray plate mounted on one end of a support cage for rotation with the support cage in one or the other of two opposite directions about a first axis arranged coa... | 12/07/2004 |
| 6814305 | Reversible adjustable arc sprinkler A reversible, adjustable arc sprinkler head includes a sprinkler body incorporating a fixed nozzle; a spray plate mounted for rotation in one or the other of two opposite directions about a first axis arranged coaxially with a stream emitted from the nozzle, and for... | 11/09/2004 |
| 6793152 | Self-adjusting rotating joint, especially for liquid distribution devices 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 ... | 09/21/2004 |
| 6736334 | Rotor type sprinkler with turbine over-spin prevention A sprinkler includes a riser having a lower end for receiving a pressurized fluid and a nozzle that is mounted at an upper end of the riser for rotation about an axis. A turbine is mounted for rotation inside the riser. A drive mechanism connects the turbine to the ... | 05/18/2004 |
| 6736332 | Adjustable arc, adjustable flow rate sprinkler A sprinkler head includes a base adapted to be secured to a component supplying water under pressure; an arc adjustment ring rotatably mounted on the base; a nozzle and a stream deflector supported by an elongated stem carried by the base, the nozzle and the stream ... | 05/18/2004 |
| 6651905 | Adjustable arc, adjustable flow rate sprinkler A sprinkler head includes a base having a lower and adapted for attachment to a sprinkler system component; an elongated steam supported within the base; a nozzle and a fixed deflector supported within the stem, the nozzle and deflector cooperating to def... | 11/25/2003 |
| 6499672 | Micro-stream rotator with adjustment of throw radius and flow rate A rotating stream sprinkler including a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along the shaft upstream of the rotor plate; the rotor plate formed with a chamber and one end ... | 12/31/2002 |
| 6494384 | Reversible and adjustable part circle sprinkler A sprinkler head includes a fixed nozzle; and a rotor plate spaced from the nozzle and mounted for rotation about an axis extending through the nozzle, and mounted for tilting movement about a horizontal axis. The rotor plate has adjacent water distributi... | 12/17/2002 |
| 6209802 | Spinning wash nozzle assembly A spinning wash nozzle assembly having a fluid brake pump within the rotating spinner housing. The fluid pump has a sump which is also within the rotating spinner housing such that centrifical forces acting on the fluid tend to separate the heavier fluid ... | 04/03/2001 |
| 6085994 | Cable supported rotary multi-jet nozzle 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... | 07/11/2000 |
| 6027040 | Nozzle head with improved wear-resistant and sealing properties A nozzle head includes a nozzle carrier so mounted to a stationary housing as to allow rotation thereof about a longitudinal axis by a recoil action caused by pressure water exiting spray nozzles accommodated in the nozzle carrier, and a hollow shaft rota... | 02/22/2000 |
| 5964414 | High pressure liquid rotary nozzle with viscous retarder A small diameter high pressure liquid spray nozzle assembly has a small diameter elongated cylindrical body with a tubular nozzle shaft rotatably supported within the body. A stack of several identical radial ball bearings within a sealed bearing chamber ... | 10/12/1999 |
| 5947387 | Adjustable rotating water jet tool for three dimensional cleaning 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 longitudi... | 09/07/1999 |
