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Патент USA US2411194

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NW. 19, 1946.
Filed Feb. 5, v1944
72aeZA, _ 57801726,
Patented Nov. 19, 1946
2,411 1,194
DENTIST’S BITE ns'rnc'ron
Raphael A. De Rome, Twin Lakes, Wis.
Application February 5, 1944, Serial No. 521,195
3 claims. (01. 177-311)
This invention relates to a dentist’s bite de
tector, namely, an instrument adapted for use
by dentists to detect the proper bite relation to
the upper and lower jaws.
adapted to be placed around the head of the pa~
tient so as to pass over the temporal muscles,
and a crown strip 9 secured to the head band and
adapted to extend over the top of the patient’s
head. The head band is extensible and contracti
ble so that it may be ?tted to heads of diiferent
sizes. Any suitable means may be provided for
It is well known among the dental profession
that too frequently patients do not take a proper
bite and the dentist does not get the proper re
lation between the upper and lower jaws. This
this purpose, and as shown in 'Figs. 4 and '7 the
results in making a false bite and the denture or
overlapping ends it of the band are contained in
dentures will not ?t the patient properly and
a sleeve H and provided with rack bars l2 that
must be modi?ed to make them fit and fre
mesh with a pinion 13, mounted on a shaft 14
quently they cannot be used at all, thereby caus
carried by a hand wheel 15. By turning the
ing a ?nancial loss to the dentist, and a loss of
hand wheel the dentist may adjust the head band
time and annoyance to the patient.
to snugly fit the head of the patient.
The principal object of the present invention 15
Mounted for longitudinal adjustment on the
is the provision of a, simple instrument, capable
head ‘band are two sensitive electric switch units
of detecting whether or not the patient is biting
16, It’ which have switch actuating buttons ll
properly in the proper relation between the upper
protruding through slots 18 in the head band and
and lower jaws, and apprise the dentist by a
adapted to engage the temporal muscles of the
visible, audible or other signal, so that if the 20 patient. Conveniently the switch units may be
bite is not proper he can admonish the patient
mounted on slides 19 which have ?anges that
vto bite properly.
embrace the edges of the head band. This ar
Another object is the provision of an instru
rangement provides means whereby the switch
ment of the above character which is adjustable
buttons I‘! may be precisely located over the tem
to accommodate diiferent sized heads and which 1.0 poral muscles of the patient.
has adjustably mounted sensitive electric switches
The switches l6, 16’ control an electric circuit
for closing a circuit or circuits to the signaling
for a signal 29 (see Fig. 5) in one form of the
device or devices, whereby the dentist may prop
invention which may comprise an incandescent
erly locate the actuating buttons of the switches
electric lamp. The lamp is in series with both
in proper position over the patient’s temporal 30 switches as shown in Fig. 5, of which the circuit
muscles so as to be acted on thereby.
With these and other objects and advantages in
view this invention consists in the several novel
features hereinafter fully described and claimed.
The invention is clearly illustrated in the draw
ing accompanying this speci?cation, in which:
Fig. 1 is a perspective view of the head gear
parts of the apparatus.
Fig. 2 is a detail horizontal section taken on
the line 2—2 of Fig. 1.
Fig. 3 is a detail vertical section taken on the
line 3-3 of Fig. 2.
may be traced from the source of electric supply
21 through conductor 22, switch IE5, conductor
22', switch it’, conductor 23, lamp 2%) and back
to the source of electric supply 23.
Instead of
the battery shown, the circuit may be completed
by plugging into an outlet of the house wiring '
In Fig. 6 two signals 20a, 26b are illustrated,
each controlled by a switch, whereby when a
40 switch is closed the signal controlled thereby is
In use the head gear is applied to the patient
and the head band is adjusted, and the switch
head band of the head gear.
units are adjusted along the head band to bring
Fig. 5 is a diagrammatic view of one form of 45 the switch buttons into ?rm contact with the
the electric circuit of the apparatus.
temporal muscles and a bite plate or plates or
Fig. 6 is a diagrammatic view of a modi?ed
trying plate or plates having been placed in the
form of the electric circuit; and
patient’s mouth, he is requested to bite down on
Fig. 7 is a detail cross section taken on the
them. As is well known by persons skilled in
line 'l~—'l of Fig. 4.
the art to which this invention pertains, the
Referring to said drawing, the reference char
temporal muscles are coordinated with the jaw
acter ‘l designates, as a whole, a head gear adapt
muscles, so that if the patient bites down prop
ed to be applied to the head of the patient. The
erly, both temporal muscles will expand, but if
Fig. 4 is a rear elevation of a fragment of the
head gear may be constructed in various ways,
the bite is wrong only one or neither temporal
and it is here shown as comprising a head band 8 55 muscle will expand; consequently if the patient
bites down properly both temporal muscles will
expand and actuate the buttons of both switch
units and close the circuit through the lamp 20
trolled by said switches, and a head gear having
a slotted band and a crown strip secured thereto,
said head gear being arranged to be applied to
a person’s head, and adjustable to the size there
of, said switches being supported by said head
band with their buttons protruding inwardly
as in Fig. 5 or through both lamps 20a and 28b
as in Fig. 6 thereby indicating to the dentist that
the patient has taken a proper bite.
If the patient has not taken a proper bite
only one or neither temporal muscle will be ex
through the slots in the head band in close con
tact with the person’s temporal muscles.
2. A dentist’s bite detector comprising a pair
of switches, remotely located signaling means and
electrical connections therewith controlled by
panded and in accordance with the circuit of Fig.
5, the circuit will be left open at the switch unit
whose button was not actuated, and the signal
will notbe activated. In the circuit of Fig. 6 if
said switches, a head gear adapted to be applied
the bite is off only one signal will be activated,
to a person’s head, said head gear having a head
and the dentist can caution the patient to bite
band and a crown strip, and means to adjust the
properly and when this is done both signals will 15 switches along the length of the head band to
be actuated.
locate the buttons of the switches over the per
From the above it is apparent that I have pro
son’s temporal muscles.
vided a very simple means whereby dentists may
3. A dentist’s bite detector comprising a head
be apprised when a proper bite has been or has
not been taken.
I claim as new and desire to secure by Letters
gear comprising a head band and a crown strip
20 secured thereto, a pair of electric switches ad
1. A dentist’s bite detector comprising a pair
of electric switches, remotely located signaling
means and electrical connections therewith con- 25
justably mounted along said head band'and re
motely located signaling means in electrical con
nection with said switches.
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