U.S. patent number 3,802,919 [Application Number 05/263,747] was granted by the patent office on 1974-04-09 for denture cleansing system.
This patent grant is currently assigned to Dentsply Research & Development Corp.. Invention is credited to Jacob A. Saffir.
United States Patent |
3,802,919 |
Saffir |
April 9, 1974 |
DENTURE CLEANSING SYSTEM
Abstract
Flexible sterile pouch means of small size to contain dentures
and liquid cleaning solution in water-tight manner. The cleaning
material may be contained in dry condition in the pouch until
liquid is added at the time of use. An additional pouch for rinsing
solution may also be associated with the cleaning pouch.
Inventors: |
Saffir; Jacob A. (Los Angeles,
CA) |
Assignee: |
Dentsply Research & Development
Corp. (Milford, DE)
|
Family
ID: |
23003072 |
Appl.
No.: |
05/263,747 |
Filed: |
June 9, 1972 |
Current U.S.
Class: |
134/137; 53/431;
53/474; 134/34; 206/37; 206/38; 206/581; 383/38; 383/63 |
Current CPC
Class: |
B65D
81/3261 (20130101); A61C 17/036 (20130101) |
Current International
Class: |
B65D
81/32 (20060101); B08b 003/04 () |
Field of
Search: |
;134/34
;53/21R,21FC,36,37 ;206/63.5,37R ;150/1,3 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Wolk; Morris O.
Assistant Examiner: Lovercheck; Dale
Attorney, Agent or Firm: Just; C. Hercus
Claims
1. A denture cleansing system comprising in combination, a small
generally rectangular pouch-like receptacle adapted to be carried
in a small space such as a pocket or purse and formed from flexible
sheet material impermeable to fluid and having an opening along one
edge through which a denture may be inserted and removed, said
receptacle having a sterile interior, closure means for said
opening extending along said edge for substantially the full length
thereof and operable to seal the same against the passage of fluid,
and denture cleansing material in dry soluble condition within said
receptacle and adapted to be dissolved to form a fluid solution
upon addition of a dissolving fluid to the receptacle to cleanse a
denture when contained within said receptacle by
2. The denture cleansing system according to claim 1 further
including an additional similar pouch-like receptacle connected to
said first-mentioned receptacle along one similar edge of each and
adapted to contain rinsing fluid, said additional receptacle also
having an access opening extending along one edge and provided with
a sealable water-tight closure means through which a cleansed
denture may be disposed within the rinsing fluid within said
additional receptacle to rinse the same and thereby prepare it
3. A denture cleansing system according to claim 2 in which said
receptacles are connected together along similar edges thereof and
adapted to be folded along a transverse line into side-by-side
relationship and said openings and sealable closure means of said
receptacles respectively being on exterior surfaces thereof when
said receptacles are folded into such relationship for ready access
to the interiors of said receptacles.
Description
BACKGROUND OF THE INVENTION
At present, dentures are cleaned by being placed in a drinking
glass, a bathroom plastic tumbler, or sometimes in a specially
designed denture cup, generally box shaped, and of opaque plastic,
to which a denture cleanser is added.
These present means are mainly for home use since they take up
considerable shelf space and are conspicuous. The glass or the
denture cup is set aside to be used over and over again to hold the
soiled dentures for cleansing. After a while, almost regardless of
the exercise of care, such receptacles develop an offensive
"denture odor."
It is also generally known that not all bacteria are killed by
short or even the long term cleansing solution. Since dentures are
most often worn by older people whose known resistance to cold
germs and other infectious bacteria is somewhat lessened,
reinfection from a germ laden denture cup is not uncommon.
Mucus and scum form in denture cups and neither these nor bathroom
glasses normally are sterilized in the ordinary home. Such deposits
contribute to causing the offensive "denture odor" so common in
denture wearers.
In general, the object of the present invention is to provide a
simple, clean, surgically sterile pouch and contents in which to
cleanse and sterilize a denture.
SUMMARY OF THE INVENTION
It is the principal object of the invention to provide a
moisture-proof pouch of convenient size for home use and also
adapted to be carried in a clothing pocket, handbag, or the like,
whereby a denture or set of dentures may be cleansed in a cleaning
solution within the pouch in a short interval of time. Soluble
cleaning material may be contained within the pouch prior to, or
added thereto at the time liquid is added, at the time of use.
It is another object to provide a pouch or receptacle which is
small and compact so as to be inconspicuous to handle and small
enough that several may be carried in a man's pocket or in a
woman's purse, or be dispensed from a public vending machine
located in a washroom or lounge where personal convenience and the
necessary hygiene can be carried out.
Another object is to provide a transparent flexible pouch or
receptacle which permits visual observation of all areas of a
denture to check cleaning effectiveness before removal.
A further object is to provide a pouch with closure means that
render it water and air tight so that its contents, with or without
a denture, can be maintained leak-proof in any position and under
any circumstances.
Still further is the object to provide a receptacle which can be
shaken and agitated to assist in dislodging plaque and the like
from the dentures, without the risk of the solution leaking from
the receptacle.
Another object of this invention is to provide a hygienically clean
denture pouch which primarily is intended for only a single use and
the package is inexpensive enough to permit it to be discarded
economically after it has served its purpose.
Another object of this invention is to provide a sterile receptacle
initially containing soluble solid denture cleanser material into
which a denture can be placed for cleaning after water is added to
form the cleaning solution.
Still another object is to provide a sterile pouch initially
containing liquid denture cleaner material, such receptacle being
of a size and form small enough to be carried in a man's pocket or
a woman's purse for convenient and instant use without requiring
retirement to the privacy of a washroom since it is possible for a
denture to be removed while screened behind a dinner napkin,
inserted into the pouch while on one's lap, permitting swishing the
denture around a few minutes, and then replaced in the mouth while
screened behind the dinner napkin or handkerchief which is raised
to the mouth in a normal and natural use.
Another object is to provide a pouch with a plurality of
compartments to permit one section to contain the denture cleansing
solution and another to hold clear water or a mouthwash to serve as
a rinse.
It is a further object to provide a sterile pouch with the
objectives set forth above which can be relatively inexpensive to
manufacture, yet will afford more sanitary, efficient, and
convenient means with which to clean a denture, either under normal
conditions in one's home or even in a public place.
Various other objects and advantages of this invention will be more
apparent from the following specification and the drawings forming
a part of the application.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view of a denture receptacle embodying the present
invention.
FIG. 2 is an enlarged sectional foreshortened view of the pouch as
seen on line A--A' of FIG. 1.
FIG. 3 is a fragmentary view similar to FIG. 2 but showing the
closure strips in separated condition.
FIG. 4 is a top plan view of the denture cleansing receptacle
showing the upper end in partially opened position.
FIG. 5 is an exemplary front view of a denture receptacle
containing dentures.
FIG. 6 is a front view of the denture cleaning receptacle shown in
the preceding figures containing a plurality of pouches.
FIG. 7 is a side view of the multiple unit receptacle shown in FIG.
6.
FIG. 8 is a plan view of another embodiment of a denture cleaning
receptacle embodying principles of the invention.
FIG. 9 is a plan view similar to FIG. 8 but showing still another
embodiment of the invention.
DETAILED DESCRIPTION
Referring particularly to the drawings, FIG. 1 shows a denture
cleansing pouch 1, which comprises a flexible receptacle that may
be made of suitable synthetic resin sheet material such as
polyethylene, polyvinyl, polyethylene fluoride, or any other
suitable flexible sheeting material approximately 0.002 inch in
thickness which is heat sealable and capable of being formed into a
pouch type container impervious to air and moisture. Sheeting that
is translucent and transparent is preferable as it permits viewing
both the condition of cleanliness and the degree of dissolution,
where required, of solid cleaning material used in certain
embodiments of this invention.
One method of forming the preferred pouch 1 is to fold a sheet of
synthetic resin material longitudinally to form bottom 2 of the
pouch. Side edges 3 and 4 are formed by heat sealing the same. The
top 25 of the receptacle is provided with reclosable, interlocking
means comprising interfitting means 5 and 9.
In FIG. 2, the interlocking means is closed. The means 5 includes
an attaching strip 6 which carries male member 7, which, for
example, is somewhat T-shaped in cross-section. Releasably
interlocking therewith is means 9 which includes a female channel
11 to receive male member 7 and also has an attaching strip 10.
Strip 10 is attached to pouch panel 14 adjacent the openable and
reclosable end of the pouch and strip 6 is attached to the opposite
pouch panel 14'. The constricted neck portion 8 on male member 7 is
disposed between the walls of the female channel 11 in means 9.
When the rib-like male member 7 and female groove 11 are pressed
together they lock with each other in fluid-tight relationship.
There is a restricted slot 12 comprising the mouth of channel 11
through which the enlarged outer portion 13 of rib 7 passes during
such interlocking action. Strips 6 and 10 preferably are attached
respectively to the panels 14' and 14 by suitable heat sealing of
the same, or cemented thereto.
Moreover, the terminal edges of the closure means 5 and 9 which
respectively include the rib and channel means 7 and 11, which are
shown in locking relationship in FIG. 2, are preferably heat sealed
at the ends 23 and 24 as shown in FIG. 1.
In the embodiment of the invention shown in FIGS. 2 and 3, the
inner surfaces of panels 14 and 14' are at least partially coated
with a thin layer 60 of denture cleanser material. Because of its
thin nature, layer 60 quickly dissolves when water or other
suitable liquid is added to the pouch.
In FIG. 4 the pouch is shown with the upper end partially opened.
The opening 30 is of such size that one or more dentures or partial
dentures and bridges may be introduced readily into the pouch.
Liquid may then be added to such extent as to cover the dentures,
as shown in FIGS. 6 and 7.
In FIG. 5, a lower denture 27 and an upper denture 28 are shown
immersed in a cleansing solution within the pouch. In such view,
opening 30 is closed to render the pouch water-tight. Because it is
water-tight, the entire pouch and contents can be shaken and
agitated to set off a sweeping and swishing action of the solution
over the dentures, similar to the action in an ordinary washing
machine, which action is impossible in any denture cup now in
use.
Where the cleansing solution in the plastic pouch receptacle is a
simple cleansing mouth wash, a few minutes swishing is all that is
required to make the dentures fresh and ready for replacing in the
mouth. However, where the cleansing solution in the pouch is a soap
or detergent, the denture preferably should be rinsed in water or
other suitable solution before being replaced in the mouth.
To accomplish such rinsing, a multiple pouch unit, as is shown in
FIG. 6, may be used. In this structure, pouches 40 and 41 are
attached to each other along a junction folding line 42. These
pouches are shown as already having been filled, either at the
factory or at time of use, with between 1/2 oz. and 2 oz. of
cleanser and cleaning fluid 43 in pouch 41 and from 1/2 oz. to 2
oz. of sterile water 44 or other suitable rinsing fluid in pouch
40. Pouch 41 is shown containing a denture 45. It is to be
understood that the sizes of pouches 40 and 41 are adequate to
contain a plurality of dentures, as shown in FIG. 5, for
example.
Without becoming conspicuous, the user can open the sealed mouth 46
of pouch 41, in FIGS. 6 and 7, which preferably is marked
"cleaner," place his denture in it, reclose the watertight mouth 46
and wait a few minutes. If the pouch can be agitated during this
time, the cleaning action will be expedited. A glance through the
clear plastic of either pouch will show the state of cleanliness
acceptable to him. He can even push his finger against the pouch
wall and rub the inner surface thereof against the denture, if
necessary, to loosen any particle of extraneous material which may
be adhering to the denture without danger of rupturing the
pouch.
If desired, a still further pouch may be added to the duplex pouch
assembly 40 and 41, shown in FIGS. 6 and 7, to contain, for
example, a second rinse solution.
The type of duplex pouch shown in FIG. 5, folds along line 42 to
form the small unit illustrated in FIG. 7 for easy placing within
the side pocket of a man's coat or within a woman's purse if it is
desirable that the denture cleaning process not be observed. If
there is to be a rinsing after such cleaning, the pouch can be
covered by a napkin or handkerchief on the lap while the change
from one unit into another of the duplex pouch is being made.
Inasmuch as the foregoing denture cleaning pouches are meant for
immediate use under any and all conditions, they are fabricated
ready for use in differing circumstances. For example, in FIGS. 6
and 7, the pouches are completely prepared for immediate use, while
in FIGS. 8 and 9, the pouches shown therein contain solid denture
cleaner material to which water or other suitable fluid is to be
added to obtain an effective quantity of cleaning solution.
In FIG. 8, the exemplary pouch 50 is shown with a soluble tablet 51
of cleansing material attached within the pouch, such as adjacent
one corner thereof. To use this arrangement, the sealed mouth 53 of
the pouch is opened, the denture is inserted, and water or other
suitable fluid is added to the limit of line 52 which, for example,
bears the legend: "Fill to this line or to above the DENTURE." When
the mouth 53 is sealed closed, the pouch can be put aside until
cleaning is completed. Although the cleansing tablet 51 dissolves
rapidly, the cleansing can be hastened by agitating the package.
Thus, if a quick cleaning is desired, agitate the package to swish
the contents, take a look at the denture through its transparent
wall, then remove the denture, rinse it under a tap or replace the
cleansing fluid in the pouch with plain water or other rinsing
fluid and rinse the denture therein.
FIG. 9 shows a pouch similar to the one in FIG. 8 but the solid
denture cleaning material is disposed therein in the form of a thin
stripe thereof applied to the interior surface of one or both walls
of the pouch and under which conditions, it is almost instantly
soluble in water. The stripe 55 of cleanser material may, for
example, comprise powdered denture cleanser material which is
moistened with a volatile liquid, such as ethyl alcohol, to produce
a paste-like consistency which then is applied to the inner surface
of one or both walls of the pouch in a layer of substantially
uniform thickness by one of several methods, such as by an
automatic stencil procedure, a rotatable roll similar to a printing
roll, by spraying, or otherwise.
Still another technique which is satisfactory, but a little less
convenient is to place a suitable quantity, such as 1/2 teaspoon of
cleansing powder within the pouch, add adequate water or other
fluid thereto to dissolve the powder and then place the denture
therein, seal the pouch and cleanse the denture in the manner
described above.
It will be seen from the foregoing that all of the pouches are
sealable in fluid-tight manner, preferably by the closure means,
shown in detail in FIGS. 2 and 3, or any other equivalent means. It
will be understood that the closure means 7 and 9 shown in said
figures function by the walls of female member 9 temporarily
deforming during insertion therein of the elongated male member 7
by slidably spreading the sides of means 9 apart and, as the member
7 is progressively disposed within the channel 11, the edges of the
walls of the channel immediately move into close engagement with
the longitudinal constricted neck portion 8 to provide a fluid
sealing relationship between the coengaged member 7 and means
9.
The denture cleansing pouches containing denture cleaner, either in
the form of a tablet or a coating on the inner walls of the pouch,
or a powder, are thoroughly sterilized. For example, a common form
of sterilization which may be used is to place such pouches into an
evacuating tank. Air is then pumped out until a high vacuum is
produced, after which sterilizing gas is introduced. The latter is
allowed to act upon the pouches until the evacuating tank and its
contents are sterile.
Many denture cleaning formulas are now in use and are satisfactory
for the foregoing use. A satisfactory exemplary denture cleaning
formula which also contains a coloring ingredient is as follows:
Sodium Perborate 8.0% Sodium Lauryl Sulfate 5.0% Hyonic PE 90
(NOPCO) 4.0% Tricalcium Phosphate 4.0% Tetra Sodium Phosphate 8.0%
Trisodium Phosphate 70.1% Oil of Wintergreen 0.8% F.D. & C.
Blue No. 1 0.1%
Many other suitable formulations of various soaps, detergents and
cleansing agents may be used.
While the invention has been described and illustrated in its
several preferred embodiments, it should be understood that the
invention is not to be limited to the precise details herein
illustrated and described since the same may be carried out in
other ways falling within the scope of the invention as illustrated
and described.
* * * * *