Fluid sprinkling – spraying – and diffusing – Unitary plural outlet means – Insert at terminus forms plural streams
Patent
1979-11-02
1982-07-13
Cherry, Johnny D.
Fluid sprinkling, spraying, and diffusing
Unitary plural outlet means
Insert at terminus forms plural streams
239589, 239599, 239601, B05B 118
Patent
active
043390811
DESCRIPTION:
BRIEF SUMMARY
RELATED APPLICATION
This is a PCT national application based on copending International Application PCT/SE79/00045.
This invention relates to a flow channel for a liquid, preferably water, one or several of which channels are intended to be arranged, for example, in a shower nozzle, a mixing-cock nozzle or the like, and which channel has an oblong cross-section.
At the shower nozzles at present in use the flow channels are circular or rectangular holes. Every nozzle usually comprises a very great number of holes to prevent the individual jets from being too sharp. The result, however, is an unnecessarily high water consumption when taking a shower.
The present invention has the object to provide a flow channel, which has a high flow resistance and also implies, that the liquid after the passage is atomized. This object is achieved by means of a flow channel, which has been given the characterizing features defined in the claims.
Owing to the high flow resistance, the water consumption is decreased, but a good shower comfort is maintained by the atomization, and the jets are not perceived as sharp.
The water amount permitted to pass by the channels according to the invention is experienced as fully satisfactory when taking a shower.
An embodiment of the invention is described below with reference to the accompanying drawings, in which
FIG. 1 shows a shower handle with flow channels according to the invention,
FIG. 2 is an exploded view of the shower handle shown in FIG. 1,
FIG. 3 shows a sprayer insert with grooves, which form a part of the channels,
FIG. 4 shows another embodiment of a sprayer insert,
FIG. 5 shows a shower handle with another embodiment of the seat, and
FIG. 6 shows an exploded view of the shower handle shown in FIG. 5.
The shower handle 1 in FIGS. 1 and 2 comprises a holder portion 2, which transforms to a head portion 3, in which a seat 4 is formed. In the bottom of the seat 4 a countersunk thread 5 is located in the centre of the seat.
As appears from FIGS. 1 and 2, a sprayer insert 6 with the basic shape of a truncated cone is intended to be mounted in the seat 4. The circular wall of the seat 4 has an inclination corresponding to the conicity of the insert 6.
The insert has a central through hole 7, in which a threaded screw 8 can be received. The hole 7 is countersunk at its end facing toward the head of the screw 8.
The screw 8, as shown in FIG. 2, is intended to be engaged with the thread in the bottom of the seat 4.
The insert 6 having been positioned, and the screw 8 been screwed into the thread 5, the shower handle 1 has the appearance shown in FIG. 1.
As can be seen in FIG. 2, the insert 6 has a shorter extension in the longitudinal direction of the screw 8 than the seat 4. The conicity of the insert 6 and the inclination of the seat walls are so adjusted to each other, that the outer end of the insert 6 in mounted state is on the same level as the outwardly facing end of the head portion. This implies, that a chamber is formed between the inwardly facing end of the insert 6 and the bottom of the seat 4.
Into said chamber opens a supply channel for water extending through the holder portion 2, so that the water is collected to the chamber before flowing out past the insert 6.
As is apparent already from FIGS. 1 and 2, but most clearly is shown in FIG. 3, the insert 6 is formed with grooves 9 extending substantially in the longitudinal direction of the screw 8. At the embodiment shown in FIGS. 1-3 six grooves 9 are provided. The grooves 9, as shown in FIG. 1, together with the walls of the seat 4 form flow channels for water.
FIG. 3 shows that the grooves 9 have a great width in relation to their depth. The bottom of the grooves 9, besides, is not plane at the embodiment shown, but slightly rounded. In the area of their inlet and, respectively, outlet the grooves 9 have a greater width and also a greater depth, because it has been found by empiric experiments that a widening and deepening of the grooves 9 at their end areas favorably affect the behaviour of the water flowing th
REFERENCES:
patent: 1192901 (1916-08-01), Irish
patent: 2125445 (1938-08-01), Holveck
patent: 2285831 (1942-06-01), Pennypacker
patent: 3563469 (1971-02-01), Stacey
patent: 3647145 (1972-03-01), Nelson
patent: 4097000 (1978-06-01), Derr
Cherry Johnny D.
Spar Vatten Och Energi AB
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