A sensor-cleaning apparatus includes an upper piece, a lower piece fixed to the upper piece, a plurality of inserts inserted into the upper piece, and a plurality of nozzles. The upper piece and the lower piece form a tubular segment that is elongated along an arc of a circle and encloses a chamber. Each nozzle is formed of the upper piece and one of the inserts. Each nozzle includes a deflection surface and a tunnel from the chamber to the deflection surface, and each tunnel is partially formed of the upper piece and partially formed of the respective insert.

A play apparatus has a gas filled balloon and an opening through which fluid is squirted or otherwise released. Fluid is delivered to the opening from an adjacent or nearby reservoir which is connected to at least one hollow tube whereby liquid is transferred from the reservoir to the release point on or adjacent to the balloon, such that the buoyancy of the balloon is unimpeded, for the purposes of play and amusement.

The misting system has, in one embodiment, two seats with misting heads above each seat. A platform supports the seats, a tank, a pump and a power source. A supply line couples the tank-supplied pump and the misters. Removable canopy is mounted above seats by vertical and curvaceous struts and the misters are mounted on the struts. A user actuated UA control on the seat(s) activates pump ON to release mist. Wheels make the module mobile. Battery, solar power, and chiller are options. A countdown timer turns OFF the pump or controllable, inline valves after initial activation of the UA control. A level sensor in the tank alerts the user via a user display. A pressurized system can be used. Multiple modules coupled together are controlled by a master module with master controls.

A toilet tissue mister includes a cabinet with an open lower front section for receiving a user's hand bearing toilet tissue. A liquid-containing bottle is maintained within the cabinet above the open lower section. A spray head is positioned at a top portion of said open lower front section and a pump is interconnected between the bottle and the spray head. A control circuit is interconnected with an optical transducer switch maintained within said open lower front section and, upon sensing the presence of a user's hand, actuates the pump for a duration of time sufficient to coat the toilet tissue in the user's hand with a spray mist from the spray head.

A method of cavitation peening may include coupling a moveable water source to a portable nozzle, through a flexible conduit. The method may include positioning the nozzle adjacent a treatment surface and discharging a first and second stream of fluid through a first and second channel of the nozzle, with the second channel concentrically positioned around the first channel. The first stream may have a first pressure, and the second stream may have a second pressure, the first pressure being greater than the second pressure and the two streams combining to generate a cloud of cavitation bubbles.

The invention relates to a spray nozzle comprising an elastomeric tube (1) comprising a proximal end (7) through which a fluid is intended to enter said tube (1), and a distal end (8). The spray nozzle also comprises a slit (9) formed in the elastomeric tube (1) between the proximal end (7) and the distal end (8), for spraying the fluid out from the elastomeric tube (1). The elastomeric tube (1) includes a reinforcing element (10, 11) for limiting deformation of the elastomeric tube (1). By providing a slit in a tube between the proximal and distal ends of the tube, the slit can be sized to provide a broad spread pattern to the spray. The reinforcing element prevents over-expansion or deformation of the elastomeric tube.

First and second fluid components are individually pumped to a device from first and second pumps. A first volumetric flow rate of the first fluid component discharged from the first fluid component is measured. A second volumetric flow rate of the second fluid component discharged from the second pump is measured. Operation of at least one of the first and second pumps is controlled based on the measured first volumetric flow rate and the measured second volumetric flow rate to produce a target ratio of the first fluid component and the second fluid component at the device.

A fluid applicator configured to receive a pressurized fluid includes a pressure vessel configured to receive the pressurized fluid from a fluid delivery line. The pressure vessel includes a valve chamber configured to receive a valve assembly, a filter chamber configured to receive a filter assembly, and a fluid delivery line fitting configured to be coupled to the fluid delivery line. The fluid applicator further including a tip assembly coupled to the pressure vessel and configured to atomize the pressurized fluid.

A work machine in which an engine and a reserving unit configured to reserve lubricating oil to be supplied to the engine are connected by a lubricating oil channel, and the lubricating oil is circulated, wherein at least a part of the lubricating oil channel and at least a part of a working fluid channel for a working fluid to be supplied to a work unit of the work machine are arranged such that heat can be exchanged between the lubricating oil and the working fluid.

A bird mister apparatus for attracting and cooling birds includes a base plate, a housing, and a reservoir within a housing inside configured to hold liquid that can be sealed and unsealed. A spout has a spout aperture extending through to the housing inside. A pump is coupled within the housing inside and is in fluid communication with the spout aperture. An inlet tube is coupled to the pump and is in fluid communication with the pump. A CPU is coupled within the housing inside and is in operational communication with the pump. A battery is in operational communication with the CPU and the pump. A power switch is in operational communication with the CPU to activate and alternatively deactivate the pump. A hanger is coupled to the housing to support the apparatus on a tree branch, a fence, or an awning.