Fluid sprinkling – spraying – and diffusing – Flow deflecting or rotation controlling means – Fluid rotation inducing means upstream of outlet
Patent
1997-09-18
1999-08-03
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Flow deflecting or rotation controlling means
Fluid rotation inducing means upstream of outlet
239491, 239518, B05B 134
Patent
active
059313862
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a spray nozzle for mounting on an outlet channel of a fluid dispenser device for dividing the fluid into fine droplets. Certain fluids, such as perfumes for example, are preferably dispensed in spray form to increase dispersion of the fluid and to avoid application that is excessively localized. For this purpose, a spray nozzle is used mounted on the outlet channel of the dispenser which is generally a pump or a valve.
Spray nozzles are usually integrated in the pushbutton of the pump or valve, in which case they move vertically when the device is actuated. They may also be secured to a part of the device that remains stationary during actuation.
FIGS. 1 to 4 shows a conventional prior art spray nozzle integrated in a pushbutton 100. FIG. 1 is a front view of the nozzle with the atomizer omitted to show the inside of the nozzle. The pushbutton 100 is in the form of a small cylinder closed at a top end by an ergonomically curved surface 118 suitable for being pressed by a finger. The cylinder is made so that it has a cylindrical housing 110 which is partially occupied by a core 111 of cylindrical shape which extends horizontally along the center of the housing. An annular space 114 is thus created between the core 111 and the inside cylindrical wall of the housing 110. A window 112 puts the annular space 114 into communication with an internal channel 117, as can be seen in FIGS. 2 and 3. The internal channel 117 receives the end of a hollow actuator rod 103.
The core 111 has a smooth front surface 119. An atomizer 102 is engaged as a force fit on the core 111, as can be seen in FIG. 3. The atomizer 102 is in the form of a small beaker whose bottom is pierced by a "spray" orifice 121. The atomizer thus comprises an end wall and an annular skirt 122 which is engaged as a force fit in the annular space 114 (FIG. 1). Three angularly distributed feed channels 113 are formed in the inside wall of the skirt and extend along the full length of the skirt 122. The skirt does not come into contact with the end of the annular space 114, so there exists an annular passage 115 putting the window into communication with the feed channels 113 (FIG. 3). Also, the end wall of the nozzle 102 has a structured inside wall 129 in which there are formed three vortex channels 125 and a vortex chamber 124 centered on the spray orifice 121 (FIG. 4). The vortex channels and the vortex chamber are closed by pressing the inside surface 129 of the atomizer in sealed manner against the smooth front surface 119 of the core. The vortex channels are thus isolated from one another. Each of the three vortex channels 125 is in communication with a respective one of the three feed channels 113. The fluid dispensed by the pump or the valve thus flows along the hollow rod 103, the internal channel 117, the window 112, the annular passage 115, the three feed channels, the three vortex channels, the vortex chamber, and the spray orifice.
In that prior art nozzle, as in those disclosed in documents FR-2 325 434 and DE-3 314 020, the height of the nozzle is directly tied to the height of the atomizer, and consequently to the structure thereof.
An object of the present invention is to reduce the height of the nozzle, thereby enabling the total height of the dispenser device to be reduced.
To do this, the present invention provides a spray nozzle for mounting on an outlet channel of a device for dispensing a fluid to divide said fluid into fine droplets, said nozzle comprising a core and an atomizer together defining: formed in said atomizer; and non-radial manner; extending in a horizontal plane.
The effect of this embodiment is to reduce the height of the nozzle: whereas a conventional nozzle is inscribed in a circle, as can be seen with reference to FIG. 1, the nozzle of the invention is inscribed in the same circle, but only along its horizontal longitudinal major axis. Consequently, the nozzle is much less high than a conventional nozzle, thus making it possible to reduce the height of the part in which it is form
REFERENCES:
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patent: 4260110 (1981-04-01), Werding
patent: 4678123 (1987-07-01), Klaeger
patent: 5540389 (1996-07-01), Knickerbocker
patent: 5711488 (1998-01-01), Lund
patent: 5738282 (1998-04-01), Grogan
Douglas Lisa Ann
Kashnikow Andres
Valois S.A.
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