An apparatus for delivering a fine spray mist to cool a localized area by evaporative cooling. The apparatus consists of a pressurizable tank, a valve for activating the release of fluid from the pressurizable tank, and a spray nozzle or a plurality of spray nozzles coupled to the valve by a quick connect coupler.

A device and method for spraying hot melt glue in circular patterns of varying diameters is disclosed. The device uses a single jet of pressurized air caused to spin and forced into a series of passages to produce a conical curtain of air. The conical air curtain impinges upon a stream of hot adhesive to spin and guide it on a surface in a circular pattern. The relative positions of the air and glue emission orifices may be adjusted quickly and easily to provide fine control of the spray pattern...

An air freshening device having an openable outer housing that, when open, activates the air freshening device by pulling an emanator out of a fluid reservoir and, when closed, seals the fluid reservoir from either evaporation or leakage. The activation and deactivation are accomplished by the use of a hooking pin within the upper housing which engages the emanator portion and pulls the wicking stem of the emanator out of the fluid reservoir. An air channel is exposed in the open position and cl...

A vehicle window washer in which the pump outlet pressure is varied in an inverse manner with temperature of the washer fluid so as to maintain a more consistent fluid deposit on the window as fluid viscosity changes with temperature. In particular, it uses a motor driven pump which provides a higher pump outlet pressure with the motor driven in a first direction than with the motor driven in the opposite direction and switches activation of the motor between the two directions based on sensed t...

A high efficiency phase change nozzle has a body with primary orifices, a pilot nozzle extends upstream from the body and has a pilot orifice and central cavity through which a pilot flow of liquid is flashed to the solid state, cooling the pilot nozzle, thereby precooling the liquid before it flows through the primary orifices. An exit nozzle, in conjunction with a housing, assists in continuing the phase change of the mixture exiting the primary orifices and with dispersing the mixture into th...

A liquid-spraying nozzle has a bottom-equipped nozzle body which includes an inner peripheral face formed at an inner bottom portion of the body and coaxial or substantially coaxial with a nozzle axis and a laterally-elongated orifice defined normal or substantially normal to the nozzle axis when viewed from the direction of the nozzle axis. The invention is characterized by a large-diameter peripheral face formed upstream of the inner peripheral face and having a larger inner diameter than the ...

The invention relates to an improved spray apparatus to be mounted on the frame of a concrete finishing machine. The invention includes an electric battery powered pump that is actuated by a switch on the handle of the machine. A battery holder and a liquid reservoir are secured to a support bracket, and the entire bracket assembly is secured to the frame of the machine. Liquid is supplied by the pump to a pair of spaced spray outlets. The spray outlets are secured close to the surface being fin...

A garden hose spout having a hand compressible bellowed conduit provides convenient and precise control over water flow.

A method and apparatus for metering and pumping multicomponents of high and low viscosity materials and subsequently mixing and applying the mixture includes gear pumps for pumping each component. Each gear pump has gears operating in a gear housing for receiving and pumping one of the components. The gear pumps are simultaneously driven at a predetermined speed and each gear pump is designed to pump a predetermined amount of its respective components, at the predetermined speed. Flexible hoses ...

Utilitarian or decorative equipment for atmosphere or leisure using water coming from a manifold member. The water is used in the form of droplets which are adjustable in volume and at least in fall duration and frequency. The equipment comprises in combination: a multiplicity of ducts (11) connected to a supply of water, each of the ducts being pierced by outlet ports associated with nozzles (37) for distributing water under pressure by capillarity and in the form of droplets, fine flows, and/o...