[0001] The present invention relates to a device for the mouth and teeth hygiene. It .comprises
in combination an interchangeable tooth brush and a case in which a dentifrice - to
which disinfectant substances may be added - is contained, said case being provided
with a fluidtight cover; the container and cover being intended, as their main function,
for keeping the toothbrush in an aseptic environment, a further purpose being that
of rendering the toothbrush and the dentifrice holder as a whole more compact and
in a single piece when the toohbrush is stored into said holder.
[0002] In fact, as well known, several separate items are presently required for the mouth
: and teeth hygiene, that is a toothpaste tube or a liquid dentifrice bottle; a toothbrush
and related case, and a personal mouth rinsing cup. All such items being separate
from one another are cumbersome and liable to be mislaid and above all they do not
ensure a total aseptic condition of the toothbrush.
[0003] For overcoming such inconveniencies, several improvements have been suggested. For
instance, a toothbrush recently put on the market by the Swiss firm TRISA under the
trade name of RAPIDENT, is provided a replaceable cartridge inserted in the toothbrush
handle. The dentifrice, which is in the. liquid form, flows from the cartridge to
the toothbrush head through a channel along the stem which connects the brush head
to that portion of the handle where the cartridge is inserted. The liquid dentifrice
outflows from small holes which are provided over the brush head at the base of the
bristles.
[0004] The toothbrush as above outlined is in fact a compact single-piece appliance. However
it suffers from many deficiencies and, above all, it does not solve the object of
maintaining the toothbrush constantly immersed into the dentifrice, that is in an
aseptic medium, which is a major object of this invention. In fact any germs collected
by the brush during a tooth cleaning operation are liable to grow if the brush is
left in the open air with the simple protection of a cover. Furthermore there is no
cuplike part for mouth rinsing in the above Swiss device.
[0005] It is therefore a main purpose of the present invention to provide a device for cleaning
the teeth such that the toothbrush head and a portion of its stem are immersed, when
not in use, into the dentifrice substance contained in a case and thus constantly
preserved in an aseptic environment.
[0006] A second purpose of the present invention is that of combining in a single device
all the equipment which is required for keeping the teeth aseptically clean, in a
compact selfcontai- ned kit.
[0007] The above objects are attained by providing a reservoir or container for a dentifrice
which may be medicated or added with disinfectant substances, wich container is provided
with a removable cover and adapted for receiving a toothbrush thereinto - when not
making use of it - in such a position that the brush is sunk into the dentifrice.
For using the brush, this is withdrawn from the container and firmly attached on top
thereof by means of a screw or a snap fitting. The brush stem which connects the brush
head to the container, being shorter than usual, the container itself functions as
an handle for the brush.
[0008] A wiping element is provided inside of the container neck around the outlet thereof,
for metering the amount of dentifrice entrained by the brush when withdrawing it from
the container, for preventing any amount of dentifrice from leaking from the container,
while cleaning the teeth and for wiping any dentifrice from the brush stem. Such wiping
element may have the form of a funnellike elastic membrane with a central hole through
which the stem of the brush and the brush head are forced to slide when the toothbrush
is withdrawn from the container or inserted thereinto.
[0009] According to a further novel feature of theis invention a cuplike cover is provided
for closing the container, which serves as a personal glass for rinsing the mouth.
[0010] Additional features and advantages of the present invention will become apparent
from the following description and drawings which illustrate by way of example a preferred
embodiment thereof.
[0011] In the drawings:
Fig. 1 shows a longitudinal cross-section of the device according to this invention,
the toothbrush being shown as sunk into the dentifrice within the container;
Fig. 2 shows the reservoir or container and toothbrush assembled together for the
tooth cleaning operation.
[0012] With reference to the figures, the device of this invention comprises a cylindrical
elongated container or reservoir 4 which in the illustrated embodiment has a larger
transverse cross-section at the lower section both for better gripping the container
and for readly fitting a cover 6 threon.
[0013] The inner surface of the rim of cover 6 tightly engages the outer surface of container
4 at the beginning of the portion thereof with larger cross-section. Container 4 is
filled with dentifrice of proper fluidity in which the brush head 8, that is the brush
portion which carries the bristles, is immersed along with a portion of the brush
stem 12. The brush as a whole is indicated by reference number 10. The brush stem
12 at its end opposite to the brush head 8 is provided with a base 14 which may be
integral with stem 12 or bonded thereto. Base 14 projects from the container mouth
when the brush is stored into the container and is provided with means for grasping
it when the brush is to be withdrawn therefrom.
[0014] According to the embodiment shown in the drawings, such means comprises a cavity
14' in which the user can insert the finger tips and apply an upward force for pulling
the brush out of the container.
[0015] Base 14 is further provided with means such as peripheral grooves 14" adapted for
co-operating with corresponding circular ridges 14'" of which the inner surface of
the container neck is provided. The engagement of grooves 14" with ridges 14"' ensures
a fluidtight snap fitting which prevents any leakage of dentifrice from the container
and of air thereinto.
[0016] A funnellike wiping element 18 is fitted into the mouth of container 4. Element 18
comprises a membrane of elastomeric material which may be provided as shown in the
drawings with inner circular fins 20 directed downwards; it may also comprise an outer
funnellike sheath for backing the membrane and thus preventing it from being reversed
upwards when the brush is withdrawn from container 4.
[0017] Element 18 is mounted on the mouth rim of container 4 and fastened thereto by clamping
ring 22. Each fin 20 defines a center hole having a size less than the toothbrush
stem.
[0018] - After using the toothbrush 10, this is stowed into container 4 so that the brush
head 8 and a portion of the brush stem are dipped into the dentifrice and the brush
base projects from the container mouth.
[0019] For using the brush 10, this is pulled out of the container by grasping the base
14 which is free from toothpaste and then not slippery. The brush is them overturned
and its base 14 is fitted into the container neck. The container can thus be used
as a handle for the brush as shown in fig. 2
[0020] When withdrawing the brush from the container, the brush stem being at sliding contact
with fins 20 is freed from the tooth paste sticking to it and any exceeding amount
of paste collected by the brush head is held back in the container so that no tooth-paste
is wasted.
[0021] A main feature of the invention is that the cuplike cover of the container can be
used as a personal glass for mouth rinsing.
[0022] From the above description it clearly appears that by the device of this invention
the toothbrush, when not making use of it, is stored in an aseptic environment and
that all the equipment required for properly cleaning the teeth and rinsing the mounth
are assembled together in a single self-contained compact kit.
[0023] It is further to be noted that the reservoir can be refilled when needed with toothpaste
and that all the kit components, the brush excluded, are not subject to wear and thus
only the brush is to be replaced from time to time.
1. An apparatus for cleaning the teeth and rinsing the mouth in which apparatus several
known elements are combined together for attaining a totally novel result that is
for preventing any contact of the toothbrush with foreign matter and having the toothbrush
constantly aseptic before and after its use characterized by the fact of comprising
a reservoir which contains a substance which may be a plain dentifrice or a disinfecting
dentifrice; a toothbrush provided with a bristle covered head, with a stem and with
a base; which toothbrush is contantly sunk in said substance when stored into said
reservoir; the base of the toothbrush being provided with means for connecting it
fluidtight with the reservoir either in a position such that said brush head and related
stem is received into the reservoir to reach the bottom thereof, or in a position
such that the brush head and stem project from the reservoir, whereby the latter can
be used as a handle for the toothbrush.
2. An apparatus as claimed in claim 1, wherein said dentifrice containing reservoir
is a substantially cylindrical elongated vessel provided at one end with a large opening
sur- rounde by a socketlike structure integral with the vessel wall which socketlike
is provided at its inner surface with means for firmly and fluidtigth receiving the
toothbrush base in either of said two positions.
3. An apparatus as claimed in claim 2, wherein said socketlike structure is provided
with a funnellike extension projecting towards the inside of said container and an
elastic funnellike membrane is laid on the inner surface of said extension which membrane
is provided at its inner surface with at least one circular fin at the center of which
a hole is provided having a size smaller than the stem of the toothbrush.
4. An apparatus as claimed is claim 1, which further comprises a cuplike cover for
said container, which cover is fitted tightly on a section of larger diameter of said
container when the toothbrush is stored thereinto and is adapted for serving as a
mouthrinsing glass.
5. An apparatus as claimed in claim 2, wherein the means provided at the outer surface
of the base of the toothbrush and at the inner surface of said socketlike structure
of the container comprise respectively at least one circular groove and at least one
circular ridge adapted for making a snap fitting with one another.
6. An apparatus as claimed in claim 2 wherein the means provided at the outer surface
of the base of said toothbrush and at the inner surface of said socketlike structure
of the container comprise a threading adapted for screwing the base into and out of
the socket.
7. An apparatus as claimed in claim 1, wherein said base of the toothbrush is provided
with means for grasping it when pulling the toothbrush out of the container and when
connecting the toothbrush to the container in a projecting position.
8. An apparatus as claimed in claim 7, wherein said means for grasping the toothbrush
base comprises a transverse cavity provided through the base which cavity is accessible
by the user's fingers when the toothbrush is fully inserted into said toothpaste containing
reservoir.