U.S. patent number 3,747,856 [Application Number 05/176,189] was granted by the patent office on 1973-07-24 for stabilizer device for a jet of water.
Invention is credited to Alfons Knapp.
United States Patent |
3,747,856 |
Knapp |
July 24, 1973 |
STABILIZER DEVICE FOR A JET OF WATER
Abstract
A device intended for stabilizing an aerated jet of water,
comprising a set of several elongated members arranged according to
the jet direction along at least one of the limit surfaces of the
delivered jet, said elongated members being spaced apart from one
another by spaces forming passages for the ambient air.
Inventors: |
Knapp; Alfons (Biberack/Riss,
DT) |
Family
ID: |
11313619 |
Appl.
No.: |
05/176,189 |
Filed: |
August 30, 1971 |
Foreign Application Priority Data
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Sep 24, 1970 [IT] |
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70201 A/70 |
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Current U.S.
Class: |
239/428.5;
239/419.5; 239/520; 239/590 |
Current CPC
Class: |
E03C
1/084 (20130101) |
Current International
Class: |
E03C
1/02 (20060101); E03C 1/084 (20060101); E03c
001/084 (); B05b 001/14 () |
Field of
Search: |
;239/419.5,428.5,553,590,518,520 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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221,878 |
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Jun 1959 |
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AU |
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973,292 |
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Dec 1959 |
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DL |
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1,086,185 |
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Jul 1960 |
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DL |
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1,189,550 |
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Apr 1970 |
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GB |
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Primary Examiner: Ward, Jr.; Robert S.
Claims
Having thus described my invention, what I claim is:
1. A device for stabilizing a jet of water delivered into the
ambient air by the mouth of a spout, comprising at least one
support member arranged within said spout, said support member
being bathed by said jet and defining a limit surface of said jet,
and several elongated members extending from said support member
substantially up to the delivery mouth of the spout, said elongated
members having a substantially constant section, being arranged in
substantially parallel mutual relationship along said limit surface
of the delivered jet and forming a palisade wall, and each pair of
successive elongated members being spaced apart by a free space
forming a passage for the ambient air.
2. A stabilizer device as set forth in claim 1, wherein said
support member is located centrally of the water jet, whereby said
support member and the elongated members extending therefrom give
to the delivered jet a tubular shape, the elongated members being
arranged along the inner limit surface of said tubular jet.
3. A stabilizer device as set forth in claim 1, wherein said
support member is ring-shaped and is passed through by the water
jet, and the elongated members extending from said support member
are arranged along the outer limit surface of said water jet.
4. A stabilizer device as set forth in claim 1, wherein said
support members are in number of two, a first support member being
located centrally of the water jet, and a second support member
being ring-shaped and passed through by the water jet, whereby said
first support member and the elongated members extending therefrom
give to the delivered jet a tubular shape, the elongated members
extending from said first support member being arranged along the
inner limit surface of said tubular jet, and the elongated members
extending from the second support member being arranged along the
outer limit surface of said water jet.
5. A stabilizer device as set forth in claim 1, further comprising
an aerating device having a central member, said central member
forming the support member for said elongated members.
6. A stabilizer device as set forth in claim 1, further comprising
an aerating device having a ring-shaped member, said ring-shaped
member forming the support member for said elongated members.
7. A stabilizer device as set forth in claim 1, further comprising
an aerating device having a central member and a ring-shaped
member, both said central member and ring-shaped member forming the
support members for said elongated members.
Description
BACKGROUND OF THE INVENTION
This invention refers to a device intended for stabilizing an
aerated jet of water, by further improving the aeration thereof and
eventually by effecting the aeration operation when the device is
made operate upon a not yet aerated jet of water.
The devices for aerating a jet of water are extensively used with
the spouts of wash-basins and of sanitary appliances. Although such
aerating devices normally deliver a sufficiently stable jet when
the flow is rather plentiful, on the contrary, when the aerated jet
is controlled at a reduced flow there often take place phenomena of
jet instability. Then the jet continually changes its shape and
direction, thus giving trouble to the use thereof. Some of the most
used stabilization devices, as for example those having the shape
of a ball or the like arranged at the delivery end of the aerating
device, have no sufficient efficiency with the more reduced
flows.
BRIEF SUMMARY OF THE INVENTION
The main object of this invention is of providing a stabilization
device capable of efficiently stabilizing an aerated jet with a
reduced flow, still not hindering the jet when controlled at a
great flow.
Another object of the invention is of making a stabilization device
capable of improving the jet aeration, with special reference to
the core portion of the jet, with such an efficiency as to allow
eventual use of said device with a poorly aerated, or even not
previously aerated jet of water.
These objects are attained, according to the invention, due to the
fact that the stabilization device comprises several elongated
members, arranged along the jet direction, slightly spaced apart
the one from another by free passages, such as to form a thin
palisade which acts as a wall limiting the jet. The jet adheres
with a noticeable surface upon said elongated members and, through
said passages, it may absorb air from the ambient.
According to an important feature of the invention, said palisade
member is arranged along the inner or the outer limiting surface of
a tubular jet, and gives raise to an additional input of air to the
inner or respectively the outer portion of the jet or both, thus
substantially improving the aeration of the jet besides its
stability. Therefore, such a stabilization device may find its use
even with an aerating device having a reduced efficiency or quite
it may act by itself as an aerating device.
BRIEF DESCRIPTION OF THE DRAWINGS
This invention will appear more clearly from the following
description of a preferred form of embodiment together with two
modifications, diagrammatically shown in the annexed drawings, as
non limitative examples. In the drawings:
FIG. 1 shows the stabilization device according to the invention,
in a first embodiment thereof, and in the combination with an
aerating device which is shown in elevation with the outer portions
in section;
FIG. 2 is a plan view from bottom of the device according to FIG.
1; and
FIGS.3 and 4 are views similar to FIG.2 but showing two different
modified embodiments of the stabilization device.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The aerating device of FIG. 1 is shown in a somewhat enlarged scale
and comprises, in a way per se known, a body 1 having through
apertures 9 for entrance of air. At the upper end, the body 1 has a
threaded portion 2 for connection to a spout 0 and at the lower end
it has a delivery mouth 11. Within the body 1 is inserted a sleeve
7 which limits an interstice 8. The interstice 8 communicates at
the upper end, through castellations 21 of the sleeve 7, with the
inner chamber 4 of the device, and communicates through the
apertures 9 with the ambient air. Upon said sleeve 7 rests a flow
subdividing member 3 which also acts as a packing, and thereon is
mounted a flow deflecting member 14 having protruding points 16. By
means of a shaft 19, the flow subdividing member 3 carries a ball
12 forming a stabilization device of a known type. The operation of
this aerating device is per se known and therefore it will not be
further discussed; on the other hand, it is to be understood that
the stabilization device according to the invention may be used
with any other kind of aerating device, although the above
described one is preferred in view of its high efficiency.
The stabilization device according to the invention comprises
several elongated members 25 which are arranged along the direction
of the delivered jet of water 10. Said members 25 are slightly
spaced apart the one from another and therebetween free spaces 24
are provided, so that the whole of said elongated members 25 forms
a thin palisade. According to FIG. 1, the members 25 are carried by
the ball 12 and they may be formed integral therewith, with a
suitable synthetic material.
Due to the ball 12 and to the elongated members 25 extending
therefrom, the delivered jet of water 10 is prevented from
converging and it takes a substantially tubular shape, i.e., it has
a ring-shaped cross section. The thin palisade formed by the
elongated members 25 is arranged along the inner limit surface of
said tubular jet 10.
Due to the number of the elongated members 25 and to the passages
provided therebetween, the inner surface of the water jet 10
adheres to the elongated members 25 on a wide surface, and the
water takes a rectilinear and stable direction of displacement,
even when the jet is rather slow and of a reduced flow. The free
communication with the ambient air through the passages 24 between
each pair of successive elongated members 25 prevents from arising
places of increased or decreased pressure along the inner surface
of the jet, and from developing retained air bubbles, so that a
very effective stabilization is obtained even with reduced
flows.
Furthermore, the water jet 10 which laps the elongated members 25
is made capable of absorbing air through the passages 24, thus
improving its aeration in the inner portion thereof, where often it
is less complete. The obtained air absorption has a considerable
intensity, thus allowing use of a stabilization device according to
the invention also in its combination with an aerating device of a
reduced efficiency, or even without an aerating device. In this
latter case, the stabilization device itself acts as an aerating
device, although, of course, the more complete results may be
obtained with the already described combination of a stabilization
device according to the invention with an aerating device arranged
upstream.
In those cases wherein there is no special requirement of improving
the aeration of the inner portion of the jet of water, several
elongated members 27 spaced by passages 26 to form a thin palisade
may be arranged along the outer limit surface of the water jet
(instead of along the inner one), as shown by FIG. 3. Said members
27 require a ring-shaped support member; they may be carried for
example by the sleeve 7, and they may be formed integral therewith.
In such a case, the additional absorption of air takes place in the
outer portion of the jet of water.
Finally, it is possible to arrange the elongated members 25 and 27
of the stabilization device according to the invention, both along
the inner surface of the tubular jet of water 10, and along the
outer surface thereof, thus combining together both the embodiments
above described to the form of embodiment shown in FIG. 4. In this
case, an additional absorption of air takes place both at the outer
portion and at the inner portion of the tubular jet of water.
The elongated members 25 and 27 have been shown in the form of
little rods with circular section, which in the practice makes
easier their manufacture; it is to be understood, however, that
said elongated members may have any section, for example a square,
rectangular or polygonal section or still another; or else they may
be in the form of blades. The essential requirements are that said
members be elongated, that they be arranged along a limit surface
of the delivered jet of water, and that they be separated from one
another by air passages. The number of the elongated members 25 and
27 forming a stabilization device may be varied as well as their
supporting means. Particularly, when said elongated members are
carried by a member 12 which has been pointed out as a ball, it is
to be understood that the operative portion of said member is the
upper dome only, and that the lower portion of the inner portion
thereof may be shaped in any way or lightened, or hollowed, up to
change the ball 12 into a simple shell of semispherical, conical or
other suitable shape, internally hollow and extended downwards by
the integral elongated members 25 forming the jet stabilizer
according to this invention.
* * * * *