An irrigation sprinkler can include an outer case and a riser extendible from the outer case by water pressure. A nozzle can be rotatably mounted at an upper end of the riser. A water inlet can connect the sprinkler to a water source. A turbine may be mounted in the riser for rotation by water entering a lower end of the riser. A gear train reduction can be mounted in the riser. A gear driven coupling mechanism mounted in the riser may couple the gear train reduction and the nozzle. A pressure regulator can be mounted inside the outer case at the water inlet.

Embodiments disclosed herein provide systems and methods for an in-ground sprinkler to controller a liquid flow rate through a chamber, while reducing or eliminating leakage. Embodiments may utilize a flat, external surface that is configured to be flush with a ground surface to control the liquid flow rate through the in-ground sprinkler. In embodiments, a permanent magnet may be positioned on the flat, external surface to control an internal patch system. Responsive to the permanent magnet controlling the internal patch, liquid flowing through the chamber may be controlled.

A cleaning head for an in-floor pool cleaning system is provided. The cleaning head includes a sleeve having a passage and an insert extending through the passage of the sleeve. The insert includes a flow path and an aperture, wherein the flow path is a curved, such as a question mark shape, and exits through the aperture. The insert is moveable between a first position with the aperture retained with in the sleeve and a second position with the aperture extending beyond the sleeve. The flow path may include an overturn at the aperture. The insert includes a nozzle, a nozzle housing, an upper guide, a lower guide and a weight with the flow path extending through each component. The nozzle includes an angled inlet opening that corresponds to an angled outlet opening of the nozzle housing that engage each other when the nozzle is coupled within the nozzle housing.

An irrigation sprinkler can include a riser and a nozzle mounted at an upper end of the riser for rotation. The sprinkler can include a high flow rate port and a low flow rate port that can each emit a stream of water. The sprinkler can include a diverter valve that can intermittently block or permit the flow of water to the high flow rate port and/or to the low flow rate port as the nozzle rotates. The sprinkler can include a gear train reduction mounted in the riser and coupled to rotate the nozzle. A turbine can be coupled to an input shaft of the gear train reduction and can be rotatable by water flowing through the riser.

Embodiments disclosed herein describe sprinkler systems that are integrated into a fence. More specifically, embodiments relate to a sprinkler system with sprinkler heads that are configured to be extended from a top surface of the fence when in operation and recessed into the fence when not in use.

A rotational speed control device includes a housing containing a viscous fluid, a shaft disposed in the housing and rotatable relative to the housing, a hub assembly secured to the shaft for rotation with the shaft, and a rotor coupled with the shaft by a frictional engagement with the hub assembly. A spring is disposed in the housing and acts on the rotor to bias the rotor axially on the shaft in a low torque direction. A braking torque between the rotor and the housing is varied according to an axial position of the rotor on the shaft.

A motion activated water repellant sprinkler device for repelling animals that can be remotely controlled is provided. When the device is in on mode, the user can remotely adjust the sensitivity setting of the motion detector, set a time period for which the sprinkler will continually spray, and turn off the device so that the user can approach the device without being sprayed. The ability to set a particular time period for continuous sprinkler activity allows the motion activated water repellant sprinkler device to be used not only as an animal deterring device but also as a watering device for grass and other plants. Remote control by IR signals and RF signals is disclosed.

The present invention includes an improved sprinkler design having a magnetic sensing system for determining the position of the riser nozzle, a waterproofed motor housing and related cables, configurable sprinkler body compartments, and a pilot valve with a check valve assembly, both of which are located within the sprinkler body.

A motion activated water repellant sprinkler device for repelling animals that can be remotely controlled is provided. When the device is in on mode, the user can remotely adjust the sensitivity setting of the motion detector, set a time period for which the sprinkler will continually spray, and turn off the device so that the user can approach the device without being sprayed. The ability to set a particular time period for continuous sprinkler activity allows the motion activated water repellant sprinkler device to be used not only as an animal deterring device but also as a watering device for grass and other plants.

In certain embodiments, an apparatus may be configured to spray a plurality of layers of paint onto a substrate through a plurality of iterations to produce a workpiece formed of a plurality of layers of paint. In some embodiments, the apparatus may include a cutting blade coupled to the apparatus and configured to cut the workpiece into a plurality of portions.