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Патент USA US3079059

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Feb. 26, 1963
R. R. CLARK ETAL.
?
3,079,051
TABLET DISPENSER
Filed May 26, 1958
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ilnited gtates
1
3,�,�
Patented Feb. 26, I963
2
rotors are hollowed out for greater economy of manufac
ture, but also for these additional reasons:
3,�,tl51
TABLET DEPENSER
Roland R. Clark, Rockford, and Herman D. Kaiser, In,
(1) the rotor parts are thereby provided with narrow,
Belvidere, ilk, assignors to Medical Supply Cempany,
circumferentially extending, ?a-t seating surfaces for
Rockford, Ill, a corporation or? Eliineis
Filed May 26, 195$, der. No. ?737,589
7 Claims. (Cl. 222-637)
of a hollow disk set in a circular recess provided there
?better sealing engagement on the stator;
(2) the stator is of two-piece construction, consisting
for in the supporting bracket, and thus a ?at seat is pro
vided on top of the inserted disk for the upper rotor, and
speci?cally one for delivering tablet-like articles, such as 10 another ?at seat is de?ned on the bottom of the bracket
aspirin or salt tablets.
under the depression for the lower rotor, and experi
While tablet dispensers are well known and used in
ence has shown that with this construction really ?at
large numbers, they have long been subject to several
seats are obtainable, which is so important for a good
The present invention relates to dispensers and more
serious objections.
For example, tablets stored in the
dispensing container or magazine are usually too much 15
exposed to the atmosphere continually, thereby allowing
moisture and impurities to enter, causing the stored tablets
to adhere together and to distintegrate and deteriorate
generally.
Furthermore, in all dispensers the tablet
capacity was invariably ?xed and no thought was ever
given evidently to getting around that objection.
It is therefore an object of this invention to provide
a tablet or capsule dispenser so designed and constructed
sealing action;
(3) the hollowness of the upper rotor makes it possible
to depress the top thereof at the center hub so that'the
stem on the lower rotor, which enters the hub and is
fastened thereto by a headed pin, cemented in place in an
axial hole in the end of the stem, is drawn upwardly to
20 seat the lower rotor more tightly on the lower seat while
the upper rotor is held down on the upper seat with the
same yielding pressure to give a much more dependable
sealing action, without adding any complications to the
to keep the tablet container sealed against outside con
construction, the resilience or spring action obtained being
tamination, even during the tablet dispensing operation. 25 inherent in the plastic material, and
It is another object of the present invention to provide
(4) the stator disk, which also is hollowed out on its
a dispensing device wherein the capacity of the tablet
under side, like the upper rotor, is pressed ?rmly against
container may be readily and conveniently increased by
the bottom of its supporting recess in the bracket by
?building up on the outer end of an existing one, without
the downward pressure of the upper rotor thereon, so that
spoiling its appearance.
30 there is no air leakage through the bottom of the dispen
Still another object is to provide an improved tablet
ser, despite the use of two parts instead of one in the
dispensing apparatus designed for dispensing tablets in a
stator.
rapid and e?icient manner and which is of simple and
The invention is illustrated in the accompanying draw
?economical molded plastic construction throughout, so
ing, in which:_
35.
economical, in fact, that the dispenser is intended to be
FIG. 1 is a side view, half in vertical section, of a
sold as part of a package deal with the onequantity of
tablet dispenser made in accordance with our invention,
tablets and discarded and replaced with another full
showing, in phantom, how the thermoplastic tablet con
dispenser when the last tablet has been dispensed.
tainer is adapted to be built-up to a larger capacity;
Another object is to provide a dispenser for dispensing
FIG. 2 is a bottom view of the dispenser;
'
tablets that is certain of always dispensing only one at a
time and without any danger of crushing tablets, regard
FIG. 3 is a bottom view of the upper rotor taken on
line 3-3 of FIG. 1;
less of the amount of tablets in the dispenser.
.
FIG. 4 is a top view of the lower rotor taken on line
More speci?cally stated, the dispenser comprises a
4?4 of FIG. 1;
tablet-storing container or magazine preferably molded
FIG. 5 is a top view of the stator taken on line 5-5
of a thermosplastic material, and adapted to be enlarged 45 of FIG. 1;
by adding an extension heat-sealed onto the outer end
FIG. 6 is 1a top view of the recessed central portion
from which the end wall has been punched out, the outer
of the supporting bracket, with stator disk removed, taken
end portion of the containers being annularly shouldered
also on line 5?~5 of FIG. 1;
vto provide a seat for wedging heat-sealed engagement
FIG. 7 is a section on line 7?7 of FIG. 3;
50
thereon of the extension.
FIG. 8 is a section on line 8??8 of FIG. 4;
Disposed below the table-t container and connected
'FIG. 9 is a sectional detail of the heat-sealed joint
thereto is a dispensing mechanism of improved design
between the lower and upper sections of a tablet con
operable to dispense tablets from the container one at a
tainer enlarged in capacity as herein contemplated;
time. This dispensing mechanism comprises a ported
FIG. 10 is a detail on line 1tl~ltl of FIG. 1, and
stator plate, an upper ported rotor plate providing an
FIG. 11 is an isolated side view of the tablet de?ecting
blade shown in top plan in FIG. 10.
air-tight seal on top of the stator, and a lower ported
The same reference numerals are applied to corre
rotor plate providing an air-tight seal on the bottom
sponding parts throughout the views.
.
of the stator. These three plates, which are all of molded
The tablet container or magazine indicated at 1% is
plastic construction, in addition to forming the tablet 60
adapted to receive tablets such as aspirin or salt tablets.
dispensing mechanism, form an air-tight slide valve mech
It is often necessary to supply dispensers with different
anism which effectively seals oil communication between
capacity containers or magazines. Therefore, this con
the inside of the tablet container and the atmosphere,
tainer 10 is especially designed to facilitate enlargement
even during the dispensing of tablets. The stator and two
thereof by building onto the outer end of an existing con
3,079,051
3
tainer. Thus, the tapered cup-shaped container 10, which
is rectangular in cross-section, has ?a recessed annular
shoulder portion 11 on its upper end 12. A second
tapered cup-shaped rectangular container 13 is provided
having the open end 14 thereof of dimensions ?tting snug
ly around the recessed shoulder portion 11 of container
16}, thereby presenting a nearly flush surface to the two
tablet containers �and 13 in inter?tted relationship when
4
to guide a conventional circular aspirin or salt tablet into
the stator port 36 from the hole 29 in the upper rotor
plate in the turning thereof in either direction. The
arcuate ramps 37 and 38 are relatively smooth and op
positely inclined downwardly toward ports 36 and 36?.
To make for ?exibility and reduce frictional resistance to
turning of rotor plates 26 and 30, they are both recessed
on their seating faces, as best appears in FIGS. 3, 4, 7
and 8, only the ?at bottom 27 of a narrow circular pe
preferably both molded of nylon or other thermoplastic 10 ripheral ?ange 39 on rotor 26 contacting the ?at top sur
face of stator 24, and only the ?at top 31 of a narrow
material and is preferably, although not necessarily, trans
circular peripheral rim 40 on rotor 30 contacting the ?at
parent. When-two containersare to be ?utilized in stacked
bottom surface of bracket 21. A circular neck 41 is cast
relationship, as illustrated in FIGS. 1 and 8, the top 12
integral with rotor 26 and ?ange 39 to de?ne hole 29, and
of container 10 :is punched out and the two containers 1%
?and :13 are heat-sealed together into one unitary con 15 the lower end of this neck is in coplanar relation with the
bottom edge 27 of ?ange 39. Likewise, a shorter circu
struction, as seen at 15 in FIG. 9. It is thus apparent
lar neck 42 is cast integral with rotor 36 and rim 49 to
that either container 10 alone may be utilized in con
de?ne hole 35 and the upper end of this neck is in co
junction with the dispenser v16 or the two-in-one container
planar relation with the upper edge 31 of rim 40. The
10-43 may be utilized, therebyproviding a larger capac
ity container. Additionally, container 13 may ?have a re 20 recessing of the upper face of rotor 30 is so slight that
there is no danger of :a salt or aspirin tablet in port 36
cessed shoulder ,portion '17 on its upper end 18 for the
being damaged by riding up out of the shallow recess over
possible addition of a third container, ?if so desired. Con
the edge of neck 42.
tainers 10 and 13 are substantially rectangular in hori
Stator disk 24 and rotors 26 and 30 are (like bracket
zontal section, and the upwardly projecting rim 19 on the
dispenser 16 is also of rectangular form and has an an 25 21) all molded of nylon or other similarly suitable plastic
material. The stem 32, which has an axial hole 43 pro-1
tnular shoulder 20 thereon on ?which the container 10 is
viewed from the exterior. The containers 10 and 13 are
vided in its upper end, is a little short in relation to the
dimension ?from the ?at bottom of bracket 21 to the center
of the dome-shaped top of rotor 26, so that the top wall
bracket 21 having a depending vertical back ?ange 22. 30 of the latter has to be depressed to bring it ?ush with the
?at top of the stem 32. Hence, when the parts are se
The ?latter has vertical slots 22? for the insertion of screws
suitably wedgingly engaged and cemented vfor an air
tight connection.
Dispenser 16 comprises a molded ?plastic ?supporting
cured together by means of a headed pin 44 with cement
'or bolts so that this dispenser may be secured to any suit
on its shank, the pin being pressed home in hole 43, the
able support or to a wall (not illustrated). vBracket ?21
head of the pin 44 holds the depressed top wall of the
is dished and in the dished center is de?ned a circular re
35 .rotor 26 in its depressed condition and the rotors 26 and
cess 323 with a vertical rib 23?Yon one side thereof for close
30 are urged resiliently toward one another under light
reception of a circular stator disk :24, having a ?at smooth
spring pressure, for a good seating action and stator disk
top surface in parallel relation to ?the vsmooth ?at bot
24 is also held in place in its supporting recess 23 in
tom surface on the bracket, the downwardly inclined
bracket 21 under the same pressure to prevent air leakage.
marginal ?portion 525 in the top ?of the bracket ?forming
A relatively resilient ?exible ba?ile blade 45, which is
a :sort of tunnel to direct the salt or aspirin tablets 'tobe
also molded of nylon or the like, is provided disposed
horizontally above and in closely spaced relationship to
the top rotor 26, keyed securely to the bracket 21 and
rib 23? to hold the disk against turning. v The rotor 26 has
located immediately overlying the stator ports 36?-36'.
a'?at bottom surface 27 which seats with an air-tight ?t
Blade 45 has an upwardly bent normally arched attach
on the ?at top of stator 24, and has a D-hole 28 ?in the
ing portion 46, and a T-shaped slot 47 is provided in one
Fce?n?ter, ?and ?a circular tablet hole 29 in radially spaced re
side
of the recessed top portion of bracket 21 in which
lation "thereto. Tablet agitator projections 126' ?are pro
portion 1'46 is pressed with a close friction ?t and suitably
vided Jon the ?top of ?rotor 26. A lower rotor plate 38,
cemented in place.
which has a ?at top surface 31 seating with an ?air-?tight
The operation of the dispenser is as follows:
50
?t on ?at bottom ?of bracket 21 under stator 24, has an
The ?container 10 is ?lled with the salt or aspirin tablets
ia'xial cylindrical stem ?or shaft 32 which ?ts closely in a
or capsules to be dispensed and then applied over the dis
center hole 33 in the recessed portion 23 of bracket 21
pensing mechanism 16 and secured thereto by wedging
?and registering center hole 133' ?in stator .24 and includes a
engagement on ?ange 19 and cemented permanently in
D~section upper end portion 34 having a ?close ?t ?in the 55 ?place, inasmuch as the dispenser is discarded when emp
correspondingly D-shaped center hole 28 provided in
tied. It is understood that any articles comparable with
upper rotor plate 26. A hole 35 is also provided in
an tasprintablet may be dispensed by this dispenser, pro
lower ?rotor plate ?in radially spaced relation -?to the axial
vided they are of substantially uniform size and shape.
"stem 32 for register with "a port 36 in the recessed portion
When ?it is desired to dispense a tablet, the lower rotor 30
23 of bracket 21 and registering port 36' in stator 24 so 60 is turned by hand, using handle portion 37', thereby turn
as to allow dropping a tablet previously deposited ?in port
ing the upper rotor 26 by means of connecting stem 32.
36 when the handle portion 37' ?defined by the vert'cal
As the upper rotor 26 turns, the upper hole 29, into which
dispensed toward the top ofthe ?upper iro'tor disk?26. A
small notch .24? in 'one side of the stator disk 24 receives
ribbed ?ange on the periphery of lower rotor plate 30 is
a tablet has found its way, willregister with stator ports
?turned to a position bringing hole 35 in register with said
36?36?. , Accordingly, the tablet will be deposited by
port. Hole 29 in the upper rotor plate 26 is disposed in 65 gravity in stator port 36. Either one of the ramps 37 or
the same radially spaced relationship to stem 32'to register
38 leading into statorport 36 will help in the smooth trans
with port 36, but is in diametrically opposed relation to
fer ?of the tabletfrom hole 29 to vport'36, depending on
hole 35,,as seen in FIG. 2, so that the inside of the dis
the direction the handle 37' is turned, but the tablet ?can
penser is neve?r'open ?to the outside atmosphere, regardless
not be'dispensed because lower rotor 30 closes the bottom
of which of said openings '29 and 35 is in register with 70 of port 36. It is only when hole 35 ?is moved into register
with port 36 that the tablet?is dropped. The ?exible blade
port-36 at any given time. The stator port 36 is prefer
45 overlying the stator port 36 will yield a tri?e in the
ably slightly larger indiameter than the tablets-to be dis
event va'tablet'happen?s?to lie askewin upper hole 29? at the
pensed, and hole .35 in the ?lower rotor plate 30 is a
point ?of registering with stator port '36, thereby insuring
tri?e larger than that. aArcuate ramps 37 ?and 38 may be
provided on opposite sides of port 36' in stator disk 72.4 75 smoother ?operation and reducing likelihood of tablet
5
3,079,051
breakage, besides blocking hole 29 against entry of an
other tablet until the rotor 26 is turned enough to bring
hole 29 out of register with port 36. For each tablet dis
pensed, the handle 37? is usually turned a half-turn one
way to deposit the tablet in port 36, and then turned a
half-turn the opposite way to drop the tablet. Of course,
a full turn in one direction will accomplish the same
results. While we have not shown it, we prefer to provide
6
3. A tablet dispenser as set forth in claim 1, wherein the
peripheral edge portion of the upper rotor has a narrow
?at bottom surface disposed in sealing slidable engage
ment on the top surface of said stator, and the lower rotor
has the top thereof recessed shallowly to define also a
narrow ?at top surface peripherally thereof disposed in
sealing slidable engagement on the bottom surface of said
stator.
an index mark on the bracket and a corresponding index
4. A dispensing device for aspirin or salt tablets or the
mark on rotor 30, which, when in register with the ?rst 10 like comprising a vertical open-bottom magazine for the
mark will serve to indicate to the operator the point in
tablets, a horizontal bracket below and supporting and
the turning of handle 37? where hole 35 registers with
closing said magazine having a ?at top surface in which
port 36_36' for droppage of a tablet.
an intermediate discharge port of slightly greater than
It is apparent, therefore, that the upper and lower rotors
tablet diameter and axial dimension is provided at a pre
26 and 30 act as slide valves. The upper rotor 26 opens 15 determined radius from the center thereof having inclined
the stator port 36 to the inside of the dispenser when the
ramp surfaces on said radius extending circumferentially
hole 35 in lower rotor 30 is 180� away, and then port 36
from opposite sides thereof on which to guide a tablet into
is opened to the atmosphere only when it is de?nitely
the port from either side, an upper rotary disk above and
closed to the inside of the dispenser by upper rotor 26
a lower rotary disk below the center of said bracket in con
having its hole 29 180� away. The projections 26? agitate
centric relation, each of said disks having a port provided
the tablets above the upper rotor 26 enough to reduce like
lihood of the dispenser being ever operated without dis
therein of the same diameter as said intermediate port
and adapted to register therewith separately whereby
pensing a tablet. These projections 26' are located so as
to clear the baffle 45.
tablets may be conducted by gravity from said magazine
through the port in said upper disk to said intermediate
The advantages of the dispenser will be obvious from 25 port and then from said intermediate port out through
the foregoing description. The lower rotor 30 may be
the port in said lower disk, and means vertically immov
rotated by handle 37' in either direction to dispense a
ably connecting the central portions of said disks positively
tablet. This is important in that one is just as apt to turn
preventing turning of one disk relative to the other, the
it one way as the other. The ease with which a dispenser
upper disk being hollowed out on its bottom to de?ne a
may be changed in capacity should also be evident from
yieldable resilient top wall and a downwardly projecting
the foregoing description.
It should be apparent that the new dispenser is ef?cient
in operation and attractive in appearance. The container
or magazine 10, if not cemented in place, can be removed
for re?lling and replaced without the use of any tools 35
and without in any way defacing the dispenser. Also,
while the present dispenser dispenses tablets ?free,? it
peripheral edge portion slidably engaging the ?at top
surface on said bracket, the central portion of said top wall
being depressed and immovably connected with the central
portion of the lower disk in that condition to insure a good
seal at said peripheral edge portion, and the lower disk
being enlarged in thickness to serve as an operating handle
for manual rotation of the upper and lower disks.
5. A tablet dispenser as set forth in claim 4, wherein the
means connecting said disks to turn together includes an
should, of course, be obvious that a coin slide mechanism
could be added, so that the dispenser could not be operated
for droppage of a tablet without payment of a predeter 40 axial stern on one of said disks of enlarged diameter rotat
mined amount ?rst. Also, while we have disclosed a
able in an axial bearing in the center of said bracket and
nonre?llable dispenser intended to be discarded when
having a flat side surface provided on the outer end thereof
emptied, it will, of course, be understood that our inven
engaging a ?at surface provided in one side of the center
tion is not limited to that speci?c kind.
hole provided in the other of said disks whereby positively
It is believed the foregoing description conveys a good 45 to prevent turning of said disks relative to one another,
understanding of the objects and advantages of our in
said means also including means attached to the outer end
vention. The appended claims have been drawn to cover
of the stem engaging the central portion of the last men
all legitimate modi?cations and adaptations.
tioned disk drawing said disks axially toward each other
We claim:
into tight sealing engagement with the top and bottom
1. In a tablet dispenser, the combination of a ported 50 surfaces on said bracket to seal the space in said magazine
horizontal stator, upper and lower horizontal rotors seated
from the atmosphere regardless of which of the ports in
on the top and bottom of the stator, respectively, and hav
said disks is in register with said intermediate port.
ing ports which in certain positions of the rotors register
6. A tablet dispenser as set forth in claim 4, wherein the
with a port in the stator, the top rotor being hollow and
means connecting said disks comprises a cylindrical axial
having a yieldable resilient top wall with a peripheral edge 55 stem of enlarged diameter on the lower disk extending
portion projecting therefrom and slidably engaging the
upwardly through a bearing provided therefor in the
upper surface of the stator, and a shaft ?xed with respect
center of said bracket, and wherein the upper disk is of
to and extending upwardly from the center of the lower
molded plastic material hollowed out on the bottom nearly
rotor through a hole provided in the stator and into a
the full diameter de?ning an upwardly arched thin top
center hole provided in the top wall of the upper rotor 60 wall which is adapted to be connected centrally with the
and vertically immovably secured to the latter with the
upper end of said stern and which in so being connected
central portion of said top wall depressed so as to urge
is ?exed downwardly and, being resilient, causes the lower
the peripheral edge portion of said upper rotor down
disk to be pressed upwardly resiliently against the bottom
wardly toward the lower rotor resiliently into close sealing
surface of said bracket, and the upper disk to be pressed
contact with the stator.
65
2. A tablet dispenser as set forth in claim 1, wherein
said stator includes a ported body part with a circular
recess provided therein, and a ported circular stator disk
?tting closely and nonrotatably in said recess with the
ports of these two stator parts in register, the upper rotor 70
having its peripheral edge portion slidably seating on the
top surface of said disk, the depression of the central por
tion of the top wall of said upper rotor causing said disk
also to be held seated resiliently in said recess due to the
rotors being urged resiliently toward one another.
downwardly resiliently against the top surface of said
bracket, whereby to seal the space in said magazine from
the atmosphere regardless of which of the ports in said
disks is in register with said intermediate port.
7. In a tablet dispenser, the combination of a ported
horizontal stator, upper and lower horizontal rotors seated
on the top and bottom of the stator, respectively, and
having ports which in certain positions of the rotors regis
ter with a port in the stator, both of said rotors being
hollow on the side toward the stator so as to provide on
75 each a yieldable resilient end wall with a peripheral edge
3,079,051
7
portion projecting therefrom and slidably engaging the
stator, and a shaft extending through a hole provided in
the stator ?and vertically immovably connected at its op
posite ends with the central portions of said end Walls
with the central portions of said walls depressed toward e
the stator so as to urge the peripheral edge portion of
said rotors resiliently into close sealing eontaet with the
stator.
References Cited ?in the ?le of this ?patent
UNITED STATES PATENTS
928,052
Hirsch ______ _,._.,_ ____ __ July 13, 1909
8
1,617,922
2,243,335
2,259,017
?2,385,677
Morrison ______ __,_____ __ Feb. 15, 1922
2,399,016
2,588,960
Gits __________________ __ Apr. 23, 1946
Campbell ____________ __ Mar. 11, 1952
Topfer ____, __________ __ July 14, 1953
2,645,375
2,649,994
2,877,937
1� 2,904,230
Elliott ________________ __ ?May 27, 19.41
Bennett ______________ __ Oct, 14, 1941
Bailey _______________ __ Sept. 25, 1945
Lewis et al. I.__________ ?Aug. 25, 1953
Weir ______________ _1__ Mar. 17, 1959
'Worth ____..____..___ ____ __ Sept. 15, 1959
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