Abstract: A sprinkler including a liquid inlet, a liquid outlet rotatable with respect to the liquid inlet and apparatus, driven by a pressurized flow of liquid entering the liquid inlet, for rotating the liquid outlet, the apparatus including magnetic coupling apparatus for transmitting motion.

Abstract: A wobbling irrigation sprinkler head is provided for use on a self-propelled mechanically moving irrigation system, such as a center pivot field irrigation system having the wobbling sprinkler head facing downward from the water supply conduit. The sprinkler head has a base for attaching to a pipe or to the central water supply conduit which base has nozzle mounted therein for directing water against a wobbling water deflecting head which is movably attached to the base and supports a deflector pad. The deflector pad has a deflection surface of predetermined shape with water deflecting grooves formed therein for rotating and wobbling the water deflecting head. The deflecting head has a loose fitting sleeve portion surrounding a support arm on the base and the base has a removable nozzle insert holder having a flange to loosely hold the deflecting head thereto.

Abstract: The present invention relates to a rotating nozzle apparatus that is rotated by the reaction of highly pressurized water. The apparatus includes magnets positioned to be spaced a prescribed distance radially from the axis C of the nozzle attaching body 16, and the suppressing force of the magnets can be increased from the start where the suppressing force is substantially in the state of no applied load proportionally to the increase of the rotational speed of the nozzle attaching body 16.

Abstract: A fluid jetting apparatus, such as nozzle, includes a support on which an orifice member is rotatably mounted. Orifices in the member are eccentric so that fluid exiting the orifices gives a driving force to rotate the orifice member relative to the support. To prevent the member from rotating too fast, a magnetic flux is provided to induce eddy currents in the support or the orifice member to produce a resisting torque opposing the speed-increasing torque resulting from the force of the fluid exiting the orifices. The eddy currents arise in response to relative motion between the magnetic flux and either the orifice member or the support.

Abstract: A self-contained cleaning system particularly suited for use with motor vehicles comprising a storage tank filled with cleaning fluid and containing a pump and a D.C. electric motor, a hose, and an external power cord, and a pistol shaped sprayer head. Depressing a trigger shaped control piece on the sprayer head opens a valve disposed therein and closes an electrical switch that activates the D.C. electric motor which drives the pump, sending cleaning fluid through the hose to the sprayer head. Cleaning fluid is emitted from one of several nozzles on a rotatable nozzle selector on the front of the sprayer head. A locking mechanism, which can hold the control piece in one of several pre-determined positions, along with a magnet in the base of the handle of the sprayer head enables hands free operation of the unit, with the sprayer head secured by the handle to a steel surface such as a car body. The 12 volt D.C.