U.S. patent number 3,850,350 [Application Number 05/422,285] was granted by the patent office on 1974-11-26 for shaker cap.
This patent grant is currently assigned to Safety Packaging Corporation. Invention is credited to Anthony Thomas Brindisi, Edward J. Towns.
United States Patent |
3,850,350 |
Towns , et al. |
November 26, 1974 |
SHAKER CAP
Abstract
An improved shaker cap in which a cover hinged at both its edge
and the middle and having projections on one half which fit in the
shaker holes in shown. The half of the cap over which the portion
of the cover not having projections is placed is recessed so that
pressing on that half will cause the cover to rotate about its
middle hinge exposing the shaker holes.
Inventors: |
Towns; Edward J. (Convent
Station, NJ), Brindisi; Anthony Thomas (Fairfield, NJ) |
Assignee: |
Safety Packaging Corporation
(Hanover, NJ)
|
Family
ID: |
23674193 |
Appl.
No.: |
05/422,285 |
Filed: |
December 6, 1973 |
Current U.S.
Class: |
222/556 |
Current CPC
Class: |
B65D
47/0847 (20130101); B65D 2251/1066 (20130101) |
Current International
Class: |
B65D
47/08 (20060101); B65d 047/00 () |
Field of
Search: |
;251/299,303
;222/142.1,142.7,472,473,474,494,505,517,528,529,530,543,556 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Reeves; Robert B.
Assistant Examiner: Martin; Larry H.
Attorney, Agent or Firm: Kenyon & Kenyon Reilly Carr
& Chapin
Claims
What is claimed is:
1. An improved shaker cap comprising:
a. a hollow cylindrical member open on the bottom and containing on
the inside of the bottom means for attachment to a container and
having a top portion comprising:
1. a solid annular portion adjacent the sides of the cylindrical
member surrounding a two level circular recess, with a first higher
level containing at least one hole therethrough and a second lower
level, said higher and lower levels divided along a line parallel
to a diameter of the cylinder with the higher level being of
smaller size;
2. a gap in said annular portion on the side of said lower level
centered on a line perpendicular to said diameter;
3. a cover hinged by a first hinge to the side of said cylinder at
said gap having a circular portion which is matched to fit said
circular recess; and
4. said top being hinged by a second hinge along a diameter
parallel to the separation of said levels.
2. The invention according to claim 1 wherein said circular portion
contains at least one projection sized to fit said at least one
hole.
3. The invention according to claim 2 wherein said higher level
contains a plurality of holes therethrough and said cover contains
an equal plurality of matching projections.
4. The invention according to calim 1 and further including a first
embossed scribe line on the vertical step between said first and
second levels and a second embossed scribe line on the inside of
said cover parallel to and on the side of said second hinge
containing said at least one projection.
5. The invention according to claim 4 and further including a
projection on the edge of said cover opposite the second hinge and
a matching recess in the vertical portion connecting said annular
portion with said first level recess.
6. The invention according to claim 5 and further including a
triangular projection on said first level adjacent and parallel to
the step between levels.
7. The invention according to claim 1 wherein said cover is split
along a line perpendicular to said diameter and said first level
recess contains at least one hole on each side of a plane through
said split, and said cover contains at least one matching
projection on at least one side of said split.
8. The invention according to claim 7 wherein a plurality of holes
and matching projections are provided on one side of said split and
a single hole on the other side of said split.
9. The invention according to claim 8 and further including a
matching projection on said other side.
10. The invention according to claim 1 wherein said cap is made of
a single piece of plastic material with said first and second
hinges formed by narrowed sections in said plastic material.
11. The invention according to claim 10 wherein said plastic
material is one of the group consisting of polyethylene,
polypropylene, and a copolymer of polyethylene and
polypropylene.
12. The invention according to claim 1 wherein said means
attachment comprises a projection encircling the inside bottom of
said cap.
Description
BACKGROUND OF THE INVENTION
This invention relates to containers in general and more
particularly to an improved shaker cap for containers.
Shaker caps presently used for dispensing salt, spices and the like
have a number of disadvantages. One type of shaker cap is that in
which a rotating member is installed which when rotated will expose
the shaker holes out of which the material is to be shaken. Such
caps have the disadvantage that the rotating member can be easily
rotated accidentally causing undesired spillage of the contents. In
addition such caps are not particularly resistant to moisture.
Another type of shaker cap places a perforated disc on the bottle
beneath a solid cap. With this type of shaker the solid cap must be
completely removed before the contents may be shaken from the
container. This is time consuming and requires remembering to
replace the cap each time the container is used. In addition this
is an operation requiring two hands. Thus, there is a need for a
simple and effective shaker cap which does not suffer from these
disadvantages.
SUMMARY OF THE INVENTION
The shaker cap of the present invention provides a cap which may be
tightly closed in the manner of screw-on caps but may be operated
in a manner as simple as those caps having rotatable members. Thus,
it provides protection for the contents and is easy to operate. In
addition, its design is such that accidental opening of the shaker
portion is unlikely. Further it is capable of operation with one
hand. To accomplish this, the cap is formed with a two-level
recessed section in its center. A first level contains the shaker
holes and takes up a bit less than half of the central portion of
the cap. Adjacent thereto is a second lower level recess. A cover
which covers both recesses is hinged to the side of the cap and
contains projections which fit into the shaker holes. When lowered
down onto the depressed section, the projections fit into the holes
and, along with an additional detent formed in the cap, hold it in
place on top of the shaker holes. In addition these projections
provide for self cleaning of the shaker holes should they become
clogged. The cover and the depth of recess of the shaker portion
are sized such that the top is flush with the rest of the cap. When
in this position, because of the deeper recess on the other portion
of the central section of the cap [which section is closest to the
edge of the cap about which the top hinges,] pressing upon this
half of the cover will cause the portion covering the shaker holes
to be raised up. The top is hinged at its center so that when it is
pressed down the portion nearest the hinge will push down into the
depression causing the other portion which is covering the shaker
holes to rotate upward. Small embossed scribelines on the
hole-covering portion of the cover and on the step between the two
levels of depression interlock and hold the cover down in the
depression so that the shaker cap may be used. When finished using
the cap it is only necessary to push the cover back in place to
have a tightly sealed container. In addition, the whole top can be
pulled up to aid in removing the cap from the container, for
example, where, as in one embodiment, the cap press fits onto a lip
of the container. In another embodiment the cover is split and
exposes shaker holes on one side and a sifter on the other.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view of the cap of the present invention with the
hinged cover portion opened away from the container top.
FIG. 2 is an elevation view of the same embodiment as in FIG. 1 and
also shows the cover in place on top of the cap and the cover in
position for shaking.
FIG. 3 is an alternate embodiment wherein the cover is split to
provide a shaker on one side and a sifter on the other.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown on FIGS. 1 and 2, the shaker cap of the present invention
is formed as a hollow cylinder having a sidewall 11 and having
around the outer part of its top, a solid annular portion 13.
Inside the annular portion 13 is a two-level circular recess 14.
The first level 15 rakes up slightly less than half the central
circular portion 14 and contains within it a plurality of holes 17
through which the material may be shaken. The remainder 19 of the
inner circular portion 14 is at a deeper recess level for use in
opening the cover as will be described below. The cap will be
constructed of a plastic material such as polyethylene,
polypropylene or copolymers of these and is molded with a cover
section 21 connected to the edge 11 at a hinge point 23. The cover
21 is constructed to have projections 25 matching the holes 17 of
the first recess 15 of the center portion 14 of the cap.
Approximately the center of cover 21 and parallel to the hinge
portion 23 is an indentation 27 to permit hinging of the two halves
of the cover 21. On the side of the cover 21 containing the
projections 25 there is also an embossed scribeline 29 parallel to
the recess 27. On the end of this section there is a projection 31
used for retaining the cover in place as will be described
below.
On the inner cylindrical surface above the recess 15 containing the
holes 17 is provided an indentation 33 matching the projection 31
on the cover. There is also provided across the level containing
the holes 17 a triangular projection 37. On the step portion going
from the level 15 to the level 19 is another embossed scribeline
39. The annular portion 13 on the cap has a gap 41 to accept a
portion 43 extending from the circular portion of cover 21 to the
side 11.
The cover 21 is placed on top of the inner circular section by
rotation about the hinge 23. When this rotation takes place the
portion 43 will fill in the gap 41 in the annular portion 13 and
the cover 21 will cover the inner circle surrounded by this annular
portion. The projection 31 will snap into the recess 33 and the
projections 25 fit into the holes 17 to hold the cover in place on
top of the cap. This position is shown by the dotted lines 21a of
FIG. 2. In this position, the cap is almost completely moisture
proof with the projections 25 filling the holes 17 and preventing
any moisture getting in or any material getting out. When it is
desired to use the container to shake out some of the material
stored therein, the user presses in the direction of arrow 45,
pressing down on the portion of the cover 21 closest to the hinge
23. The projection 37 acts as a fulcrum about which the portion 47
of the cover 21 can rotate with bending occurring at the hinge 49
formed by the indentation 27. The embossed scribelines 39 and 29
will then interlock to cause the cover 21 to stay in the position
indicated by dot-dash lines 21b of FIG. 2.
As shown, the inside of the side 11 contains a flange portion 51 to
permit snapping it on top of a bottle or the like having a
corresponding recess. It should be noted, that the sides may
equally well be made with threaded portions on their inside to
permit screwing on to a bottle or the like. Although the holes 17
are shown as a plurality of small holes such as would be used for
shaking salt, spices or the like, the cap of the present invention
may also be manufactured with a number of larger holes or for that
matter with a single hole for dispensing different types of
materials, such as pills, capsules, etc.
FIG. 3 illustrates an alternate embodiment of the invention.
Construction is as described above except that the cover 21 is
divided into two sections 52 and 54. Section 52 contains
projections 25 as above which fit in matching holes 17. Section 54
however contains a single large projection 53 which fits in a
matching hole 55. Each of the sections 52 and 54 can be operated
independently thereby providing both a shaker and a sifter cap. If
desired, the projection 53 may be eliminated and the hole 55
enlarged to be bounded by lines 61, 63 and 65. Cover section 54
will still remain closed without projection 53 because of the slot
33 and projection 31 shown on FIGS. 1 and 2.
Although specific embodiments have been illustrated and described,
it will be obvious to those skilled in the art that various
modifications may be made without departing from the spirit of the
invention which is intended to be limited solely by the appended
claims.
* * * * *