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Патент USA US2409953

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Oct. 22, 1946.
c. A. NoTMAN
Filed Deo. 17,A 1942
Cla/'enne ?). /Yoíma/v
Y Patented Oct. 22, 1946
` Clarence A. Notman, Detroit, Mich., assignor of
Y one-half to Charles Bowles, Detroit, Mich; -
Application December 17, 1942, Serial No. 469,314
2 Claims. (Cl. 15-138)
6-64of Fig. 4 illustrating the reservoir and th
This invention relates to a device for carrying
a supply of substance from which small portions
may, from time to time,„ be separated from the
supply for use as desired. The invention is par
ticularly adaptable to what may be termed a
fountain brushsuch, for example, as a tooth
At the present time it is of paramount imp-or-`
tance to prevent mouth diseases, particularly
Figure '7 is a cross-sectional View taken on line
Figure 8 is a cross-sectional View taken on line
8--8 ‘of Fig. 4 illustratingthev outlet passage.
Figure 9 is a cross-sectional View taken on line
_ s-_e of Fig. 4 showing the brush head.
The brush comprises a body'or `handle portion
among those in the armed forces, and while the 10 I which is hollow so as to provide therein a reser
present invention is a personal or portable brush
voir 2‘. A brush head 3 having suitable bristles 4
is preferably detachably connected to the handle>
admirably adapted for the armed forces, the use
as by means of screw-thread connection 5 so that
of the device may be general among the civilian
the brush head may be replaced from time to
population. The_general object of the invention
is to provide an article such as a tooth brush 15 time. The brush head has a small passageway 6
which may be carried by an individual and which
in its stem'portion and when connected to the
contains its own supply of asubstance, such as
an antiseptic, and which is arranged so that small
portions of the supply can be used from time to
handle this passageway aligns with a passageway
'I in the handle leading from the reservoir. ' The
time as desired.
’ y
It is the aim of the invention to provide a sim
ple yet effective arrangement for holding the de
sired substance, and from which small’portions
may be ejected, without involving numerous parts
or precision parts or other mechanism `liable to
get out ofA order. The arrangement is provided
principally for handling a liquid substance. , This
liquid need not necessarily have the ilowing char
acteristics of water but it should be substantially
iluid so that the same will readily now under the
inner end of the passageway 'I'may be shaped to
provide a valve seat 8.
It will be noted that the outlet passageways 6
and 1, or at least one of them, isquite‘small in
cross-sectional area and indeed this may be what
is termed a capillary tube, in that the liquid in the _
reservoir will notV gravitate through the small
opening due to the friction or resistance to the
now of the liquid therethrough.
A valve plunger Ill passes'into the reservoir
through the end thereofY opposite the valve seat,
30 and this> valve plunger may be screw-threaded
action of gravity. Some of the substance is segre
gated from the supply and ejected from the reser
in the end of the handle as shown at >I I. The
valve plunger may have an enlarged knurled or
voir therefor, by the displacement principle, and
roughenedl head I2 by which" it may be turned,
this, as will be seen as the following description
and a lock nut I3 may be mounted upon its screw
progresses, is accomplished ‘by >an exceedingly 35 threads. The end of the valve plunger is suit
ably constructed to engage theV seat 8 and close
simple but novel arrangement which may embody
but a single movable element.
A tooth brush is selected for the purposeof
illustrating the invention and in the drawing:
the passage -I. To this Vend it may be tapered so
as to provide a tapered valve member I4. V .The
member I0 `has been termed avalve plunger be
Figure 1 is a side elevational view of a tooth 40 cause this element has at least two -functions,
namely that of a plunger or displacement means
brush constructed in accordance with the inven
and a closure valve.
Suitable caps or closures may be provided for
Figure 2 is a cross-sectional view therethrough.
detachable connection to the handle so as to cover
Figure 3 is a cross-sectional View of the brush 45 the enlarged head I 2 of the valve plunger and to
with the end closure pieces or caps removed and
cover the brush. One such closure piece :is illus
illustrating the ñrst step preparatory to the re
trated at I4 which may be screw-threaded or
moval from the reservoir of a portion Yof the sub
otherwise attached to the handle at I6. The par
ticular attachment shown comprises screw-A
Figure 4 is a view similar to Fig. 3 showing the 50 threads. Another closure piece> I‘I is detachably
brush in reversed position.
connected to the brush handle by 'suitable ‘means
Figure 5 is a view similar to Fig. 4 showing theV
such as screw-threads I8 so _as to cover' the brush.
action of displacing a portion of the substance
The_closure piece or c_ap I8 may have suitable;
Ventilating openings I9 therein so thatV the brush
from the reservoir.
Figure 6 is a cross-sectional view taken on line 65 may dry when not in use and the device may be
stance therein.
' '
equipped with a clip 2D so that it may be convenf
iently carried in a pocket.
This structure may be made of any suitable
the angle be such as to cause the liquid substance
to gravitate so as to provide an air chamber in
, Ä'”
the end of the reservoir adjacent the outlet during
the time the plunger is being retracted and to
material and except for the clip and the brush
bristles the entire structure may be made from
provide an air chamber at the opposite end of the
reservoir during the time the plunger is being
advanced into theV reservoir.
Thus a single movable element, in association
with a rigid reservoir capable of ¿ retaining its
a plastic material of which there are a number
available. Some of the plastic parts may be
transparent or translucent and particularly may
the handle or reservoir portion be thus provided
so that that supply of substance therein is visible.
The liquid substance in the reservoir, which is
geometric shape, provides for a positive ejection
of substance from the reservoir and also serves
The extent to
which the plunger is retracted for the admission
of air into the reservoir may depend upon the
shown at 2 I, may be used as a supplemental anti- ` l ' the purpose of a sealing valve.
septic in the brushing of the teeth. In other ._
words, if an antiseptic is employed, the teeth may
be cleaned by a paste or powder appliedy to the 15 desires of the particular individual, although the
device may be provided with a means for limiting
brush and a small amount of antiseptic used in a
the extent of retraction or for indicating the`
supplementary fashion. The substance in the
reservoir may alone be used in the cleaning> and
average or proper extent of retraction. The reser
voir may be refilled by removing the plunger en
brushing of the teeth. This may be leftfsome- .
what to the desires of the particular users. The 20 tirely and introducing a new supply through the
substance in the reservoir may, on the other hand,
have cleansing properties for the cleansing of the
I claim:
teeth or it may combine cleansing properties with
1.’ A fountain brush for liquid substance com
antiseptic properties.
prising, a brush head, a hollow handle therefor
The manner of use, other than the actual brush
25 constituting a reservoir, an elongatedV capillary
ing of the teeth, is illustrated in the drawing.
In Fig. 2 the plunger is` positioned so `that its
tapered valve portion »I4 is lscrewed home
against the seat 8 >thus sealing the reservoir.
The lock nut I3 may be tightened against the 30
passageway leading from one end kof the reser
voir to a point adjacent the brush head, a dis
placement member mounted in the wall at Vthe
opposite end of the reservoir for movement
lengthwise in the wall so thatfit vmay be ad
end of the reservoir handle so as to tighten the
vanced into and retracted from the reservoir to
thread engagement at II to thus, seal the reser
ensmall and enlarge the reservoir respectively,
voir at this point. In this condition,> with the caps
the end of the displacement member having a
applied the' device may be carried with facility.
valve formation thereon for seating vandclosing
Ineorder to obtain a supply of the substance for
Y use, the brush is positioned with the brush head
uppermost as shown in Fig. 3 so that the liquid
the reservoir end of the passageway, whereby upon
retraction of the displacement member, the__pas.~
sageway is opened and the reservoir is Venlarged
so that atmospheric air enters >the same through
the passageway, the lbrush adaptedk to be posi-.
Therplunger is now turned so that its valve por
tion I4 backs off the seat so that the passages ‘àA 40 tioned so that the substance gravitates tothe
end of the reservoir having the ¿joassageiìvam- the
and "I, are> now open to the atmosphere. The
operato-r continues to turn the plunger so ~that it
capillary passageway >offering such restri'ctionV
is retracted a distance from the valve seat and itv
thatî ther liquid substance will not ,normally ` iiow`
therethrough, whereby upon advancement of' the,
will be observed that this enlarges the capacity
substance gravitates away froml the passage »'I.
of the reservoir. , This isbecause some of the body 45
of the valve plunger is moved from within the
reservoir to outside of the reservoir. During this
period air passes into the reservoir through the
aligned passages 6 and 1.
displacement member into _the reservoir, some of
‘ the substance is ejected through Vthe passageway
by the pressure caused by the ensmalling ofthe
2. >A fountain brush for readily ñovvable liquid
The brush is now positioned so that the brush 50 substance comprising, a brushv head, a hollow
head extends downwardly as shown in Fig. 4 and »
handle therefor constituting a reservoir, said
the «liquid gravitates to the lower portion of ,the
handle being rigid for retaining aflxed geometric
reservoir which is now at the outlet end. The
small passages 6 and/or 1, however, are such that
ing a passage leading from thevreservoir to a point
shape, a single opening in the reservoir compris-.
the,v liquid does notrilow out through'the same. 55 adjacent the brush head, said passage being
elongated and of capillary characteristicsA so thatl
Thejplunger is now turned on its screw-threads to
it offers such resistance that the liquid substance`
advance it into the reservoir.~ This ensmalls
will not normally ñow therethrough, a ‘displace
the reservoir fand tends to create a . pressure
ment plunger in substantial alignment with the
therein greater than atmospheric. As a result a
certainamount of the substance is forced. out 60 passage and threaded in avvall of the handle,
said displacement plunger having a valve- forma
through the passages 6 and 'I into the brush
tion adapted to seat and close the passageway,"
bristles. This is shown in Fig.> 5.y This forcing
the displacement plunger adapted to be retracted
of thesubstance out through the outlet passages
from the reservoir to open the passageway and
continues until the valve portion I4 again comes
to» rest upon the valve seat 8.
65 enlarge the'reservoi‘r capacity whereby air `enters
the -reservoirgrthe displacement vplunger being
The substance is accordingly actually ejected
adapted to be advanced into the reservoir thereby
by aï pressure action by the simple expedient of
to ensmall its capacity, so that, when the brush»
creating a gaseous pressure within the reservoir
is positioned with the passage below the levelof
which exceeds that of atmospheric. The outlet
end of. the passage 5 may be suitably positioned to 70 the substance in the reservoir, some of the‘sub
stance is ejected out of the -reservoir throughV the
discharge the substance into or on the brush
bristles as desired. In actually using the device
in thisv marmer it need not be positioned vertically
asshownin Figs. 3 and 4..- Itis suflicient that
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