U.S. patent number 3,800,940 [Application Number 05/162,878] was granted by the patent office on 1974-04-02 for programmed pill dispenser.
Invention is credited to Michael D. Thomas.
United States Patent |
3,800,940 |
Thomas |
April 2, 1974 |
PROGRAMMED PILL DISPENSER
Abstract
A pill dispenser consisting of a circular base having a
plurality of circumferentially spaced pockets defined therein with
a cover rotatable on the base. The pockets are preferably upwardly
opening. The cover has a single pill exit, and the device
incorporates drive means for advancing the pill exit into alignment
with successive pockets to allow removal of individual pills from
the respective pockets.
Inventors: |
Thomas; Michael D. (Elmhurst,
IL) |
Family
ID: |
22587503 |
Appl.
No.: |
05/162,878 |
Filed: |
July 15, 1971 |
Current U.S.
Class: |
206/533;
206/534 |
Current CPC
Class: |
B65D
83/0454 (20130101); B65D 2583/0409 (20130101) |
Current International
Class: |
B65D
83/04 (20060101); B65d 083/04 () |
Field of
Search: |
;206/42 ;116/121 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Summer; Leonard
Attorney, Agent or Firm: Dressler, Goldsmith, Clement &
Gordon, Ltd.
Claims
What is claimed is:
1. A pill dispenser comprising a substantially circular base having
a plurality of circumferentially spaced pill receiving pockets
therein; a cover for said pockets, said cover having a single pill
exit therein; means supporting said cover for rotation on said
base, said base having an elongated arcuate slot opening toward
said cover and concentric with said base; ratchet teeth on said
cover aligned with said slot; and an actuator reciprocable in said
slot and cooperating with said teeth for rotating said cover on
said base to sequentially align said pill exit with successive
pockets and allow removal of pills from individual successive
pockets while keeping the remaining pockets covered.
2. A pill dispenser as defined in claim 1, in which said actuator
is reciprocated between first and second positions, said positions
being circumferentially spaced by a dimension equal to the
increment of spacing of said pockets; and biasing means normally
maintaining said actuator in said first position.
3. A pill dispenser as defined in claim 2, in which the spacing
between adjacent teeth is substantially equal to the spacing of
said pockets so that movement of said actuator from said first
position to said second position will advance said pill exit in one
direction from one pocket to the next adjacent pocket.
4. A pill dispenser as defined in claim 3, further including means
on said base engaging said ratchet teeth for preventing rotation of
said cover in the opposite direction.
5. A pill dispenser as defined in claim 1, in which said pill
receiving pockets open upwardly.
6. A pill dispenser comprising a substantially circular base having
a plurality of circumferentially spaced pill receiving pockets
therein; a cover for said pockets, said cover having a single pill
exit therein; means supporting said cover for rotation on said
base; and drive means for rotating said cover on said base to
sequentially align said pill exit with successive pockets and allow
removal of pills from individual successive pockets covered, said
drive means including an actuator; guide means on said base
defining an arcuate slot with at least a segment of said actuator
slidable in said slot for guiding said actuator between first and
second positions, said positions being circumferentially spaced by
a dimension equal to the increment of spacing of said pockets; and
biasing means normally maintaining said actuator in said first
position.
7. A pill dispenser as defined in claim 6, in which said biasing
means includes a spring integral with said actuator and located in
said slot.
8. A pill dispenser as defined in claim 21, in which said actuator
has a gripping portion extending from said slot and said base has a
gripping portion, with said biasing means including a spring
integral with the base gripping portion and having a free end
engaging said actuator gripping portion.
9. A pill dispenser comprising a base having a circular central
portion and an annular recess surrounding said central portion;
means dividing said annular recess into a plurality of pill
receiving pockets of equal size; a cover supported for rotation on
said central portion and overlying said annular recess with a
single pill exit in said cover, said pill exit having a dimension
corresponding substantially to the dimension of one of said
pockets; and cooperating means between said base and cover for
advancing said pill exit into alignment with successive pockets to
allow removal of individual pills from the respective pockets, said
cooperating means including an actuator; means defining an arcuate
slot adjacent the periphery of said base, said actuator having an
arcuate segment slidable in said slot; biasing means cooperating
with said actuator for normally maintaining one end of said segment
in engagement with one end of said slot and defining a first
position for said actuator; said actuator being moveable from a
first position to a second position to advance said pill exit from
one pocket to another.
10. A pill dispenser as defined in claim 9, in which said actuator
has a gripping portion extending from said slot and said base has a
gripping portion adjacent said slot.
11. A pill dispenser as defined in claim 10, in which said biasing
means includes a spring between the opposite end of said arcuate
slot in the base and said slidable arcuate segment of said
actuator.
12. A pill dispenser as defined in claim 10, in which said biasing
means includes a spring located between said gripping portions.
13. A pill dispenser as defined in claim 12, in which said spring
is integrally formed with said actuator.
14. A pill dispenser as defined in claim 9, in which said cover has
a portion overlying said slot and said cooperating means includes
ratchet teeth on said portion of said cover and a finger extending
from said arcuate segment of said actuator and engaging said
ratchet teeth, said base having a finger engaging said ratchet to
prevent rotation of said cover in one direction.
15. A programmed pill dispenser comprising a circular base having a
central hub extending from one surface thereof and a plurality of
pill receiving pockets of equal size and equally spaced around said
hub; a cover having an opening receiving said hub and supporting
said cover for rotation on said base, said cover having a single
pill aligned with said pockets; a plastic actuator for rotating
said cover and having a segment with said base having an arcuate
slot receiving said segment; biasing means between said base and
said actuator, said biasing means normally maintaining said
actuator in a first position and accommodating movement to a second
position; gripping means on said base and said actuator for moving
said actuator from the first to the second position; cooperating
means on said cover and said actuator for rotating said cover on
said base as said actuator is moved from the first to the second
position to align said pill exit with a next adjacent pocket; and
retaining means between said cover and base for preventing relative
rotation as said actuator is moved from the second to the first
position by said biasing means.
16. A programmed pill dispenser as defined in claim 15, in which
said base is formed of plastic material and said biasing means
includes a resilient plastic spring integral with said gripping
means on said base and engages said gripping means on said
actuator, said actuator having a major portion extending beyond
said base to substantially enclose said spring.
17. A programmed pill dispenser as defined in claim 15, in which
said biasing means includes a resilient plastic spring integral
with said actuator and located in said slot with a free end
engaging one end of said slot and in which a portion of said cover
closes said slot.
18. A programmed pill dispenser as defined in claim 15, in which
said cover is formed from a transparent plastic material and said
hub has indicia of periodicity serially arranged adjacent the
periphery of the upper surface thereof that are aligned with the
respective pockets to indicate when a pill has been taken for a
given period.
19. A programmed pill dispenser as defined in claim 18, further
including a removeable tab having a peripheral dimension
substantially equal to the periphery of the hub and secured to the
upper surface of the hub with said indicia of periodicity on said
tab.
20. A programmed pill dispenser as defined in claim 18, in which
said cover is formed of a molded plastic material and the indicia
of periodicity are molded into said hub.
21. A programmed pill dispenser as defined in claim 15, further
including cooperating means between said actuator and said base for
initially maintaining said actuator in a stored position where said
biasing means is in a relaxed condition.
Description
BACKGROUND OF THE INVENTION
The present invention relates generally to pill dispensers, and
more particularly to a simple and inexpensive programmed pill
dispensing device.
The dispensing of pills or tablets and the like has received
increased attention in recent years due to the many advances in
medical research that have resulted in numerous medicines in pill
or tablet form. There are now available on the market, in addition
to the conventional bottles and closures, many mechanical
dispensing devices. In addition, there are numerous types of
blister, skin and foil packaging techniques which are associated
with apertured supporting boards, dispensing cartons and the like
for the manual removal and separation of pills therefrom.
One particular area which has recently received considerable
attention is the packaging of oral contraceptive pills, and various
devices have been proposed for packaging and dispensing such pills.
One of the problems encountered in the use of oral contraceptives
is that the pills must be taken on a daily basis for a certain
period of time, and a certain number of pills must be taken during
a given time period to produce the desired results.
SUMMARY OF THE INVENTION
The pill dispenser constructed in accordance with the teachings of
the present invention allows for accurate dispensing of pills, and
gives a clear indication of the number of pills that have been
taken from the group as well as the number of pills remaining to be
taken. The device or unit is extremely compact and pleasing in
appearance, and can be manufactured at a minimum expense.
The dispensing device of the present invention consists of a
circular base having a central hub portion with a plurality of
circumferentially spaced pill receiving pockets surrounding the hub
on the base. In a preferred form of this dispenser, the pockets
open upwardly, being produced by partitioning an annular recess
into a plurality of compartments of equal size, with the partitions
extending upwardly and having upper edges located in substantially
the same plane as the top surface of the hub.
A cover is rotatably supported about the hub and completes the
enclosure of each of the pill receiving compartments or pockets.
The cover has a single pill exit aligned with the annular recess,
and the cover and base having cooperating means to advance the pill
exit into alignment with successive pockets to allow the removal of
individual pills from the respective pockets.
The cooperating or drive means may consist of an actuator that is
slidably supported between first and second positions on the base
and has an actuating finger cooperating with ratchet teeth defined
on the periphery of the cover. The circumferential spacing between
the first and second positions of the drive means is approximately
the same as the spacing between adjacent partitions defining the
pockets, so that movement of the actuator from the first to the
second position will move the pill exit from one pocket to the next
adjacent pocket. The ratchet teeth may also be spaced in
substantially the same way.
The actuator is biased to its first position by the plastic spring
which in one embodiment is integral with the actuator and in
another embodiment is integral with the base, so that the entire
unit includes a minimum number of pieces, each of which can be
molded in a single step molding process.
The hub is located in close proximity to the respective pockets,
and is capable of receiving indica with indicators for each of the
pockets so that the user of the pills may readily determine whether
a pill has been taken for any given time interval.
The entire unit is extremely compact so that it can be easily
packaged for shipment and can be carried in a purse, occupying a
minimum amount of space.
BRIEF DESCRIPTION OF SEVERAL VIEWS OF DRAWINGS
FIG. 1 is a plan view of the pill dispenser with portions of the
cover broken away;
FIG. 2 is a section taken generally along line 2--2 of FIG. 1;
FIG. 3 is an enlarged fragmentary sectional view taken generally
along line 3--3 of FIG. 2;
FIG. 4 is an enlarged fragmentary section taken generally along
line 4--4 of FIG. 1;
FIG. 5 is a plan view similar to FIG. 1 showing a slightly modified
form of pill dispenser;
FIG. 6 is a side elevation view as seen along line 6--6 of FIG.
5;
FIG. 7 is a fragmentary bottom view of the pill dispenser shown in
FIG. 5; and
FIG. 8 is a fragmentary sectional view taken generally along line
8--8 of FIG. 5.
DETAILED DESCRIPTION
While this invention is susceptible of embodiment in many different
forms, there is shown in the drawings and will herein be described
in detail two specific embodiments, with the understanding that the
present disclosure is to be considered as an exemplification of the
principles of the invention and is not intended to limit the
invention to the embodiments illustrated.
FIG. 1 illustrates the dispensing device generally designated by
the reference numeral 10 consisting of three molded plastic pieces,
including a base 12, a cover 14 and an actuator 16.
The base 12 is substantially circular in cross section and has a
central portion or hub 20 and an annular recess 22 (best seen in
FIG. 2) surrounding the hub. The annular recess 22 has a plurality
of partitions or vertical walls 24 that extend upwardly above the
surface surrounding the recess and have their upper edges
terminating in a substantially common plane with the upper surface
of the hub 20, for a purpose which will be described later. The
partitions or walls 24 divide the annular recess into a plurality
of pill receiving pockets 26 each being substantially the same size
and specifically configured to receive a pill of a given
dimension.
The cover 14 is supported for rotation on the central portion or
hub 20 of the base, and for this purpose the cover has an opening
30 substantially equal to the diameter of the hub 20. In the
illustrated embodiment, the cover 14 is maintained on the base for
rotation about the hub by a plurality of circumferentially spaced
outwardly extending projections 32 (FIGS. 1 and 4). As shown in
FIG. 2, the hub portion 20 of the base is hollow and the
projections 32 are aligned with recesses 34 in the peripheral wall
of the hollow hub. This arrangement simplifies the molding of the
projections onto the periphery of the hub 20.
The transparent cover 14 also has a single pill exit 36 defined
therein that is in alignment with the annular recess and has a size
substantially equal to the size of the respective pill receiving
pockets 26.
According to one aspect of the invention, the cover and base have
cooperating drive means for advancing the pill exit 36 into
alignment with successive pockets and thereby allow removal of
individual pills from the respective pockets. The cooperating means
includes the actuator 16 that has an arcuate segment 40 slidably
supported within an arcuate slot 42 defined adjacent the periphery
of the base. As clearly shown in FIG. 1, the arcuate slot is
concentric with the center of the base. The actuator and more
specifically the segment 40 of the actuator has one end normally
biased into engagement with one end of the slot 42 by biasing means
in the form of a spring 44 that is formed integral with the segment
40. The spring is a sinuous thin integral extension extending from
one end of the segment 40 and has its free end engaging the
opposite end 50 of the slot 42. The actuator 16 further has a
gripping portion 52 extending through a cutout portion 54 on the
periphery of the base so as to be readily grasped by the user, for
a purpose which will be described later. In addition, the base 12
also has a gripping portion 56 extending from the periphery thereof
adjacent the slot.
The cooperating or drive means further includes means for advancing
the pill exit 36 from one pocket to a next succeeding pocket when
the actuator is moved from its first to a second position. This
latter means consists of a ratchet 60 defined on the bottom surface
of the peripheral portion of the cover which overlies the arcuate
segment 40 of the actuator 16. A plurality of teeth 62 of the
ratchet 60 that may be spaced by a circumferential dimension that
is equal to the spacing of the respective partitions or walls 24.
The segment 40 of the actuator has a finger 64 that is in vertical
alignment with the ratchet 60 and engages the respective teeth as
the actuator 16 is moved from the first position or solid line
position of FIG. 1 to the phantom line position shown therein. In
order to prevent the cover from rotating in an opposite direction
as the actuator is moved from its second to its first position by
the spring 44, the base further includes an integral finger 70
(FIG. 1) that is also aligned with the ratchet 60 but has its
vertical wall facing in the opposite direction from that of the
finger 64.
According to another aspect of the invention, the dispensing device
is constructed so that the spring is maintained in an unstressed or
relaxed condition until the device is ready to be used by the
purchaser. Thus, as shown in FIG. 1, the outer surface of the
arcuate segment 40 has an override ratchet or projection 72
extending therefrom. This projection is received in a complementary
recess 74 on the inner surface of the slot 42. With this
arrangement the actuator is initially held in the dotted line
position shown in FIG. 1 where the free end of the spring is spaced
from the adjacent end of the slot (not shown).
Upon initial movement of the actuator 16 the resilient side wall of
slot 42 is flexed outwardly and, the projection is moved out of the
complementary recess 74 and the gripping portion 52 is moved from
the dotted line position to the solid line position of FIG. 1 to
cause the end of spring 44 to engage the end of slot 42 and
compress the spring. When the actuator is released the spring 44
will move the actuator to the left and the projection will
ultimately engage the end wall 76 of the cut out portion 54 to
define the first position for the actuator. The projection 72 and
recess 74 define cooperating means between the base and the
actuator to maintain the actuator in a stored position where the
spring is in a relaxed condition.
The pill despensing device 10 further includes indicia means of
periodicity that has indicators that are respectively aligned with
the respective pockets. For example, if the device is used for
contraceptive pills, the indicator would be the respective days of
the week. The indicator means can readily be in the form of a
circular tab substantially the dimension of the hub or central
portion 20 so as to be adhesively or otherwise secured to the hub
and have its respective indicators 79 aligned with respective
pockets. In the specific embodiment illustrated, the annular recess
22 is divided into 21 pockets, equal to the number of pills taken
for one given period of time. With this arrangement, the indicator
can be permanently affixed or even molded in with the hub portion,
as will become apparent hereinafter.
In operation, the cover may initially be removed by the application
of an upward force and the resiliency of the plastic pieces will
allow the opening 30 to be expanded sufficiently so that the
projections 32 may pass through the opening 30 in the cover. Twenty
one pills are then inserted into the respective pockets and the
cover is placed on the hub. The pill exit is closed by some
suitable type of adhesive tape or other closure means so that the
package can be shipped to the merchandiser. When the pill taking
cycle is to begin, the actuator is operated so as to locate the
pill exit with the date corresponding to the date for the first
pill. The enclosure means for the pill exit can then be removed and
the first pill taken. Thereafter, on successive days, the actuator
is moved from the first to the second position to locate the pill
exit with the next succeeding pocket allowing for the removal of
the individual pill in that pocket. The rotation of the actuator is
accomplished by grasping the two gripping portions and forcing them
towards each other and the finger 64 engages one of the teeth 62 to
move the cover with the actuator as the actuator is moved from its
first to its second position. While the actuator is returning from
the second to the first position, by the bias of the spring 44, the
finger or retainer 70 prevents the cover from returning to its
previous position by engaging one of the teeth 62.
It should be noted that one of the advantages of the structural
arrangement of parts of the pill dispenser allows for the use of
any type of plastic that is compatible for dispensing medicines in
molding the base as well as the cover. The actuator, which is
completely isolated from the pills, is the only part that need be
formed of a resilient plastic material, such as Nylon, Delrin, etc.
This arrangement considerably decreases the cost of manufacturing
the entire dispensing device. Also the cover and base cooperate
with each other to substantially seal the pockets and the
partitions extend into the annular recessed portion of the cover to
completely separate individual pills.
A slightly modified embodiment of the invention is disclosed in
FIGS. 5 through 8. Since the various parts and their cooperation
with each other is substantially identical, common reference
numerals will be used from the embodiment of FIGS. 1 through 4 with
the addition of the suffix "a". The only significant difference
between the two embodiments is the structural configuration of the
actuator and the spring as well as the configuration of the
gripping portion on the base. In the modified embodiment
illustrated in FIGS. 5 through 8, the actuator 16a consists of an
arcuate segment 40a located in the arcuate slot 42a in the base
with a major portion 80 extending from the base beyond the cover
14a. The gripping portion 52a is defined on one end of the major
portion 80 extending beyond the cover and the base. Also, the
portion 80 has a downwardly directed flange 82 (FIG. 8) for a
purpose which will be described later.
In the embodiment of FIG. 5 through 8, the spring 44a is formed
integral with the base gripping portion 56a and engages the inner
surface of the gripping portion 52a on the actuator 16a. As will be
seen from an inspection of FIGS. 7 and 8, the downwardly directed
flange 82 on the actuator substantially encloses the spring.
Preferably, in order to maintain the free end of the spring in a
substantially fixed position, the gripping portion 52a has a
projection 86 that has a small recess 88 for receiving the free end
of the spring. While not specifically disclosed, the mechanism for
maintaining the spring in an unstressed, condition, described above
can also be incorporated into this embodiment.
Since the modified form of the invention is operated in an
identical manner to that in the previous embodiment, it is believed
that no detailed description thereof appears to be necessary.
As can be appreciated from the above description, the present
invention provides a simple, inexpensive, esthetic, compact
dispensing device that can be utilized for controlled use of
various types of pills, particularly oral contraceptive pills.
* * * * *