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Патент USA US2411001

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NOV- 12, 1946-
'w. c. ROTHKRANZ
DENTAL PRECISION BRIDGE DEVICE
Filed Sept. 50, 1945
2,411,001
2,411,001
Patented Nov. 12, 1946
V UNITED STATE s
PATENT ‘I OFFICE
2,411,001
f
i
.
DENTAL PRECISION BRIDGE DEVICE
William C..Rothkranz, Bronx, N. Y. ‘
Application September 30, 1943, Serial No. 504,346
10 Claims.
1
This invention relates to new and useful im
provements in a dental precision bridge or denture
device, and is in the nature of an adjustable pre
cision telescoping tube and bar with or for the
male attachments of a dental bridge or denture.
It is intended that said telescoping tube and bar
be cut to length for a one tooth or several teeth
(01. 32—5)
2
erence will be had to the following description
and accompanying drawing, and to the appended
claims inwhich the various novel features of the ’
invention are more particularly set forth.
In. the. accompanying drawing forming a ma
terial part of this disclosure:
.
Fig. l is a fragmentary enlarged perspective
view of a model for a case for which We are to
bridge or denture and be permanently imbedded
construct a bridge, and a dental precision bridge
in the plastic or metal or combination body or
10 device constructed in accordance with this inven
saddle of the bridge or denture.
tion shown in relation to the model.
It is proposed to characterize the new dental
Fig. 2 is a fragmentary enlarged side elevational
precision bridge or denture device by a non
view of the dental precision bridge device, per se,
rotative telescopic tube and bar provided with
illustrated with the projecting ends of the right
right angle members mounted on the outer ends
of said tube and bar for holding in parallelism 15 angle members out’ oii to oeclusal requirements.
Fig. 3 is .a fragmentary vertical sectional View
the male attachments and jackets, if jackets are
taken on the line 3-3 of Fig. 2.
I
.
used in the abutments, for a removable bridge or
Fig. 4 is a fragmentary horizontal sectional view
denture.
,
taken on the line 6—4 of Fig. 2.
I-Ieretofore, numerous dental paralleling devices
Fig. 5 is. a side elevational view of a dental
have been known and used inthe dental profes
sion for placing the male attachments in
precision bridge device constructed in accordance
parallelism, but their construction has‘ been rela
with another form of this invention.
tively expensive and their use relatively difficult
and time consuming. The new device, in accord
ance with this invention, is exceptionally simple
direction of the line ‘6,—.6 of Fig. 5. '
'
I
Fig.6 isa fragmentary plan view lookingin the
_ Thev dental precision bridge device, in accord
in construction, and simpli?es the construction of '
a dental bridge or denture. It reduces the cost
ance with the ?rst form of the invention disclosed
in Figs. .1 to 4 inclusive, may be made of precious
of dental bridges, especially those having plastic
bodies, by eliminating the present slow procedure
or non-precious metals and includes a non
rotative telescoping tube ' l0 and bar H for en
required with former devices. This invention will
therefore make available, these desirable remov
able bridges and other dentures to more people.
seats. These parts have been shown-square in
tranverse cross section merely for the purpose of
_ The invention further proposes to use support
studs where required mounted upon said tele
scoping bar and tube for resting upon the curva~
ture of the model of the case for which a bridge is
being constructed. These studs are quite simple
in construction and will add to the accuracy of
ablijng distance adjustment between abutment
illustration. Other non-rotating shapes may also
be used; Right angle members l2 and‘ I3 are
mounted upon the outer ends of said tube l0 and
bar II and are for the purpose of holdingin
parallelism male attachments Hi and the com
plementary jackets l5 if and when’ used, of a
The particular design, con
_
Stillfurther the invention contemplates pro 40 struction and details of the attachments it ‘and
15 form no part of this invention and any of the
viding these studs with loops by which they may
commercial attachments now used may beem
be slipped on and moved along the said telescop
ployed. The cross-sectional shapes of the mem~
ing tube and bar and adjusted to required posi
bers l2 and i3‘ may be made to accommodate and
tions and cut to required lengths.
'
The invention also proposes‘ exceptionally 45 conform to e?iciently supporting and placing said
male attachments.
' >
simple means for holding the telescoping tube and
Support studs iii are mounted upon said tube
bar in adjusted, extended and retracted positions.
the ?nished bridge or denture.
The invention also contemplates modi?cations
removable bridge.
iil'and bar H. These studs iii are for the pur
pose of resting against the curvature l‘l'v of the
embodying the basic principle of having a prede
termined parallel appliance of the two male 50 model for the case for which a bridge or denture ,
is being constructed'so as to'add to preventdis
abutments adjustable to the space needed and
tortion of said tube in and bar I I ‘under the pres
available. Such modi?cations are illustrated and
sure which is necessary in building the body or
described in this speci?cation.
saddle of the bridge or denture around said tube
For further comprehension of the invention,
and of the objects and advantages thereof, ref 55 it and bar I I, especially if the body is being con
2,411,001
3
4
structed of plastic material. Said support studs
The male attachments
I 6 also serve to create and retain a space for the
material to form the body of the bridge or
mounted on the sockets 29.
In other respects this form of the invention is
denture. Preferably, the support studs I6 are
slidably mounted upon the tube ID and bar II.
For this purpose each support stud I6 is provided
with a small metal loop I? which engages around
the tube III or bar II.
Means is provided for holding the tube I0 and
identical to the previous form and like parts are
bar II in adjusted, extended and retracted posi
tions. This means is in the nature of a set screw
I4
are permanently
indicated by like reference numerals.
The operation of this form of the invention
is substantially identical to the prior form, dis
tinguishing merely in the fact that the sockets
20 may be ?xed in various‘ elevated positions and
10 in various turned positions so that the male at
tachments Id in the ?nally constructed bridge
will be directed in the correct arc of the teeth
for the case to which the bridge is being con
tubeHIU and abutting the adjacent face of the
bar
.
‘
structed.
The use of the dental precision bridge device 15
While I have illustrated and described the
may be readily understood from the following
preferred. embodiments of my invention, it is to
brief description. A model A of the case for which
be understood that I do not limit myself to the
a bridge is to be constructed is made in the
precise constructions herein disclosed and the
usual way from the usual materials. Conven
right is reserved to all changes and modi?ca
tional inlays B or crowns or other abutments or 20 tions coming within the scope of the invention
piers are constructed for the adjacent natural
as de?ned in the appended claims.
teeth which are to act as piers or abutments
Having thus described my invention, which I
for the removal bridge. These inlays B, etc., are
claim as new and desire to secure by United
situated in the adjacent teeth of the model, these
States Patent is:
teeth being indicated by the reference letters C. 25
1. A dental precision bridge or denture device,
The inlays B are formed with recesses D in which
comprising a non-rotative telescoping tube and
the jackets I5 (if used) of the male attachments
bar, right angle members mounted on the outer
are to be soldered. Sockets for the male attach
ends of said tube and bar for holding male at
ments may be made with formers without the
tachments and jackets in parallelism, and male
use of jackets.
attachments mounted on said right angle mem
The male attachments I4 may be mounted
bers and in parallelism, said right angle mem
upon the right angle members I2 and I3 with
bers extending above said male attachments to
hard wax until their correct positions are located,
act as handles.
and then they are permanently soldered. The
2. A dental precision bridge or denture device,
jackets I5 for the attachments I4, if jackets are
comprising a non-rotative telescoping tube and
used, are mounted on the male attachments.
bar, right angle members mounted on the outer
The dental device is then placed in between the
ends of said tube and bar for holding male at
teeth C of the model. The projecting top end
tachments and jackets in parallelism, male at
of the member I3 may be used as a handle for
tachments mounted on said right angle members
easier handling the dental device. The studs I6 40 and in parallelism, ‘and support studs mounted
are cut off or ?led off so as to properly support
upon said tube and bar.
the telescoping tube It‘! and bar II upon the
3. A dental precision bridge or denture device
curved portion I ‘I’ of the model A at a proper
comprising a non-rotative telescoping tube and
height. The set screw I8 is loosened and the
bar, right angle members mounted on the outer
tube I0 and'bar I I are extended until the jackets 45 ends of said tube and bar for holding male at
I5 and male attachments I4 are in proper posi
tachments and jackets in parallelism, male at
tions within the recesses D of the inlays B. The
tachments mounted on said right angle members
jackets I5 if used, are then secured to the inlays
and in parallelism, and support studs mounted
B with hard wax. The dental device together.
upon said tube and bar, said support studs being
with the male attachments I4 are then lifted up 50 of material which may be readily cut and ?led.
and removed from the temporarily secured jack
4. A dental precision bridge or denture device,
ets I5. The jackets I5 are then soldered in ac
comprising a non-rotative telescoping tube and
cordance with conventional practice to the inlays
bar, right angle members mounted on the outer
B. The dental device with the male attachments
ends of said tube and bar for holding male at
II; is thenvreplaced in position between the jack 55 tachments and jackets in parallelism, male at
ets I5, the projecting top ends of the members
tachments mounted on said right angle members
I2 and I3 are cut off at the point aligned with
and in parallelism and support studs slidably
the tops of the male attachments, and the bridge
mounted on said tubeand bar.
is then constructed in the usual way around said
5. A dental precisionbridge or denture device,
dental device, to have the usual saddle, arti?cial 60 comprising a non-rotative telescoping tube and
teeth, etc. Thus the dental device will be per
bar, right angle members mounted on the outer
manently embedded in the ?nished bridge, or
ends of said tube and bar for holding male at
other denture and the male attachments will be
tachments and jackets in parallelism, male at
projecting from the same.
tachments mounted on said right angle members
In Figs. 5 and 6 a modi?ed form of the inven 65 and in parallelism, support studs for said tube and
tion has been disclosed which is very similar to
bar, loops mounted upon said support studs and
the prior form, distinguishing merely in the fact'
slidably engaging upon said tube and bar.
that the right angle members I2’ and I3’ are
6. A dental precision bridge or denture device,
of cylindrical‘ forms. Sockets 20 are slidably and
comprising a non-rotative telescoping tube and
turnably mounted on said right angle members 70 bar, right angle members mounted on the outer
I2’ and I3’. These sockets are provided with
ends of said tube and bar for holding male at
cutouts 2I and perforations 2|’ for hard wax
tachments and jackets in parallelism, male at
and later for solder by which they may be ?xed
tachments mounted on said right angle members
in various longitudinal and various turned posi
and in parallelism, support studs mounted on said
tions upon the right angle members I2’ and I3’. v75 tube and bar, and means for holding said tube
I8 threadedly mounted through one wall of the
2,411,001
5
and bar in adjusted extended and retracted posi
tions.
7. A dental precision bridge or denture device,
comprising a non-rotative telescoping tube and
bar, right angle members mounted on the outer
ends of said tube and bar for holding male at
tachments and jackets in parallelism, male at
tachments mounted on said right angle members
and in parallelism, support studs mounted on
said tube and bar, and means for holding said tube 10
and bar in adjusted extended and retracted posi
tions, said support studs being slidably mounted
on said tube and bar.
6
bar, right angle members mounted on the outer
ends of said tube and bar for holding male at
tachments and jackets in parallelism, sockets
rotatively and slidably mounted upon said right
angle members, means for holding said sockets in
adjusted positions, said means comprising slots
and perforations engaged through said sockets
and abutting said right angle members for receiv
ing solder or other holding’ material, and male
attachments mounted on said sockets in parallel
15m.
10. A dental precision bridge or denture de
vice, comprising a non-rotative telescoping tube
and bar, right angle members mounted on the
outer ends of said tube and bar for holding male
attachments and jackets in parallelism, sockets
rotatively and slidably mounted upon said right
angle members, means for holding said sockets in
adjusted positions, said right angle members be
ing of cylindrical shapes, said sockets being
8:. A dental precision bridge or denture device,
comprising a non-rotative telescoping tube and
bar, right angle members mounted on the outer
ends of said tube and bar for holding male at
tachments and jackets in parallelism, male at
tachments mounted on said right angle members
and in parallelism, sockets rotatively and slidably
tubular and mounted on said cylindrical members,
mounted upon said right angle members, and
and male attachments mounted on said sockets.
means for holding said sockets in adjusted posi
in parallelism.
tions.
9. A dental precision bridge or denture device,
WILLIAM C. ROTHKRANZ.
comprising a non-rotative telescoping tube and 25
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