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Патент USA US2404683

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July 23, 1946.
Filed June 14, 1944
f/m’r B/IEISl/MA/V
Patented July 23, 1946
Harry Barishmalii, New Yorlgl‘l. Y.
> Application June 14, 1944, Serial No. 5119,1219
4 Claims. (01. 282-19)
This invention relates generally to denta1 de
vices. More ‘particularly my invention is con
cerned with an improved construction for the type
of devices used for aiding dentists in marking
teeth inthe mouth for the purpose of grinding or for other desired reasons.
One of the objects of my invention is to pro
vide a novel marking device of the class described
‘which shall he so constructed and arranged as to
vantage was in the fac-t‘that when the patient bit
on the carbon paper‘ it wastusually cut through" by
the biting and mutilated, thus often giving inac
curate marking. Another disadvantage was
found ‘in the fact that the dentist lost time by
constantly reintroducing the carbon ‘paper into
the mouth of the patient to get the necessary
Referring now in detail to the drawing, I have
be easily and readily applied'and‘maintained in -10 shown, my improved dental device in the form of
a strips comprising *a_ layerv of textile material
pesition for effective use while permitting the
l I having‘one of its'surfaces-I I'a coated with ad
dentist‘ to‘ grind teeth accurately and without in
hesive substance and the opposite surface IIb
coated with a layer of carbon or the like mate
Another object of nay-‘invention is to provide a
novel marking device of the class described'which 15 rial capable of leaving a‘markor imprint when
‘brought into frictional contact with another’sur
shaltbe relatively simple ‘and inexpensive to man
face. While the said‘strip'II may beimadeof a
ufacture, easy to use and which at the same time,
‘single layer of textile or other suitable ‘material
shall represent a general improvement in the art.
having its opposite'surfaces coated, "as just de
Other objects of my invention "willhereinafter
be {pointed out or willvbecome evident from the 20 scribed,~it is understood that a laminated struc
ture mayal'so be employed in which the layer I I
following description.
may 'form the 'centrall-layer- and in which ‘the
In the accompanying ‘ drawing,
coatings I la and I Ib may be on separate strips of
Fig. 1 is a plan view of a dental device con
material I I0.’ and Ill)’, as shown in Fig. 4 of the
structed and arranged in accordance with my
invention and having certain portions thereof 25 drawing.
In Fig. 3 I have illustrated a method of use of
broken away to disclose the construction thereof;
the dental device of my invention. Assuming that
2 is an end elevational view thereof;
it is desired to construct a crown for the tooth
.L -g. 3 is a diagrammatic View showing the man
A in the upper jaw, it would be necessary to grind
ner of application and use of my invention; and
a uniform layer of enamel from the occlusal sur
Fig. I‘: is an end elevational view, similar to Fig.
face of the tooth A in order to allow for the added
2, but illustrating a modi?ed form of my inven
thickness of the material of the crown.
To properly guage the amount and extent of
In certain types of dental work, such as, for
such grinding I out off from the continuous strip
example, the making of crowns or inlays, it is
8, shown in Fig. 1, a piece 25, of any desired size
necessary to grind the occlusal surface of the
and place the same over the tooth B in the lower
tooth which is to receive the same to provide space
jaw, corresponding to the tooth A, with the ad
for the crown. It is also desirable that the layer
hesive surface 2 Ed downwardly so that it will ad- \
of enamel to be removed for this purpose should
here and be retained in position with the carbon
be uniform. To accomplish this it has heretofore
surface I lb uppermost. When the patient closes
been the practice to employ a few layers of car
his jaws, an imprint from the carbon surface i II)
bon paper of the type shown and described in the
will be left on the tooth A which will serve as a
patent to F. W. Keith, No. 1,458,062, dated June
guide to the dentist for grinding. This may be
5, 1923. These sheets of carbon paper were held
repeated as many times as needed, without inter
by the dentist with his fingers or with a tool while
rupting the grinding. ‘While I have described
the patient closed his mouth, biting on the carbon
the strip I l as being of textile material because of
paper to leave an imprint or mark on the tooth
the fact that it will not become torn or mutilated
to be ground which served also as a guage for the
after the first imprint is made, it is understood
dentist in grinding. Usually this imprinting had
that I do not limit myself to textile material be
to be repeated a number of times before the job
was ?nished, necessitating the interruption of the 50 cause Cellophane, plastic, or other suitable mate
rial may be satisfactorily employed.
grinding because the dentist was obliged to rein
In order to protect the adhesive surface Ha.
the carbon paper a number of times. Several
until ready for use, I provide a layer [1 over
disadvantages were noted in the above described
lying the said surface I Id. The layer I1 is
method and procedure which the present inven
preferably of a textile material having an open
tion is designed to overcome. One such disad
weave, on the nature of cheese cloth which may
be adhesively held in place and which may be
removable for effective use of my dental device,
in the customary manner known to the art in
the manufacture of adhesive tape.
In order to facilitate the ready removal of the
above set forth, it is understood that all matter
herein set forth or shown in the accompanying
drawing is to be interpreted as illustrative and
not in a, limiting sense.
Having described my invention, what I claim
and desire to secure by Letters Patent is:
layer I‘! it is preferably made wider than the
1. As a new article of manufacture, a dental
strip H so that it will cover the adhesive surface
device of the class described, comprising a sheet
of the said strip H and at the time overhang
of ,material, one surface thereof being coated
one longitudinal edge thereof.
10 with carbon or similar substance capable of leav
Interposed between the layer l1 and the ad
ing an imprint when brought into frictional con
hesive surface Ha, of the strip I l for a relatively
tact with another surface, the opposite surface of
short distance from the longitudinal edge of
the said strip H from which the layer [1 over;
said sheet being coated with adhesive substance
. capable of removably adhering to a tooth to be
hangs is an auxiliary relatively narrower layer 15 retained thereby and a removable layer of ma
19. This layer I9 is adhesively held by the said
terial adhesively overlying the said adhesive sur
adhesive surface Ha, and overhangs the said
face to protect the same until ready for use.
longitudinal edge of the strip ll similarly to the
2.. As a new article of manufacture, a dental
layer l1. It is thus seen that a portion Ha of
device of the class described, comprising a sheet
the layer I 1 which overlies the layer l 9 is free and 20 of material, one surface thereof being coated
unattached to the adhesive surface Ha.
‘with carbon or'similar‘subst'ance capable of leav
Therefore, when it is desired to use my dental
ing an imprint when brought into frictional con
device it is merely necessary for the dentist to
tact with another surface, the opposite surface
grasp the overhanging portion of the layer I 9
of said sheet being coated with adhesive sub
between the ?ngers of one hand and with the 25 stance capable of adhering to a tooth to be re
?ngers of the other hand to grasp the overhang
movably retained thereby, a first removable layer
ing portion of’ the layer I1. By maintaining a
overlying the said adhesive surface to protect
grip on the layer IS the layer I‘! may be readily
the same, and a second removable layer inter
‘ peeled off without contacting the carbon surface
posed between said adhesive surface and said
30 ?rst removable layer, said second removable layer
a While in the drawing I have shown my dental
device made in the form‘ of a continuous strip
which may be manufactured and sold as a roll,
my device may also be made and sold in the form
of cut sheets of predetermined size.
It will be thus be seen that there is provided
a device in which the objects of my invention
are achieved, and which is well adapted to meet
the conditions of practical use.
As various possible embodiments might be
made of the above invention, and as various
changes might be made in the embodiments
being narrower than said ?rst removable layer. 1
3. A dental device according to claim 2 in'
which the said ?rst and second removable‘ layers
are of open weave fabric.
4. A dental device according to claim 2 in
which the said ?rst and second removable layers
have portions thereof extending beyond an edge
of said sheet so that they may be grasped by the
?ngers of the hands and readily removed with
out contactively engaging the said carbon sur
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