U.S. patent number 3,822,030 [Application Number 05/175,250] was granted by the patent office on 1974-07-02 for lid with straw positioning means.
Invention is credited to John Tanzer.
United States Patent |
3,822,030 |
Tanzer |
July 2, 1974 |
LID WITH STRAW POSITIONING MEANS
Abstract
A lid having a pair of flexible wing elements which are
configured, arranged and dimensioned to flexibly engage and
automatically incline a straw positioned therebetween.
Inventors: |
Tanzer; John (Brookfield,
WI) |
Family
ID: |
22639558 |
Appl.
No.: |
05/175,250 |
Filed: |
August 26, 1971 |
Current U.S.
Class: |
220/709;
229/103.1; D7/396.2; 229/906.1 |
Current CPC
Class: |
B65D
47/36 (20130101); A47G 19/2222 (20130101); B65D
2231/022 (20130101); B65D 2231/02 (20130101) |
Current International
Class: |
A47G
19/22 (20060101); B65D 47/00 (20060101); B65D
47/36 (20060101); A47g 019/22 (); B65d
041/18 () |
Field of
Search: |
;229/1.5B,7S,43
;220/90.2 ;215/1A,56 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
|
|
9,743 |
|
Oct 1927 |
|
AU |
|
566,676 |
|
Dec 1932 |
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DD |
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Primary Examiner: Price; William I.
Assistant Examiner: Marcus; Stephen
Attorney, Agent or Firm: Kovac; Michael
Claims
I claim:
1. A plastic lid including a T-shaped slit formed in the top of the
plastic lid adjacent the periphery thereof and having a cross-bar
section and a leg section, said T-shaped slit defining a single
pair of flexible wing elements on each side of the leg section
which are hingedly connected to said lid in acute angular
relationship to each other, said T-shaped slit being arranged such
that the leg section of the T-shaped slit is closer to the
periphery of the lid than the cross-bar section of the T-shaped
slit, and a straw inserted into the flexible wing elements of the
T-shaped slit in the plastic lid, said straw being engaged by the
pair of acute angular flexible wing elements to cause said straw to
be forced against the marginal portion of the lid adjacent the
cross-bar section of the T-shaped slit while being inclined
relative to a container with which the lid is associated.
Description
SUMMARY OF THE INVENTION
Where soft drink beverages and the like are sold over the counter
in disposable paper and plastic cups and containers, snap-in paper
and over-cap plastic lids are utilized to prevent spillage. At the
same time, it is desired that the user be able to drink the
contents of the container without removal of the lid. For this
purpose, a straw is conveniently inserted through an access opening
provided in the lid.
The prior art is replete with many different kinds of straw access
openings that can be provided in a lid. Typical examples of this
are shown in U.S. Pat. Nos. 3,048,317 and 3,387,765 which represent
two types of straw access openings which have been used
commercially. These patents suggest that a number of features are
desirable in a commercially useful straw access opening. In
general, it has been found that the straw access opening is
preferably designed to prevent any appreciable spillage of liquid
while allowing any pressure built up within he container to be
vented and, at the same time, permit the straw to be easily
inserted, without deformation, into a container. Additionally, it
is also desirable that the straw access opening provide automatic
inclination of the straw when inserted through the lid as well as
be simple in design to require minimum tooling and fabrication
costs. However, the straw access opening designs which are capable
of providing the features as are disclosed by the above patents are
not also suitable for automatic straw inclination as well as low
tooling and fabrication costs.
Accordingly, it is an object of the present invention to provide a
lid with a straw access opening which has advantages heretofore
unobtainable by prior art designs.
More specifically, it is an object of the present invention to
provide a straw access opening for a lid which permits automatic
inclination of the straw while being simple in design to require
minimum tooling and fabrication expense.
Another object of the present inention is to provide a straw access
opening for a lid which, in addition to the aforementioned object,
prevents appreciable spillage of the liquid, allows any pressure
built up in the container to be vented and permits a straw to be
easily inserted through the lid into the container.
The above and other objects and advantages of the present invention
are obtained by the provision of a lid which includes a pair of
flexible wing elements which are configured, arranged and
dimensioned to flexibly engage and automatically incline a straw
positioned therebetween.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a top plan view of disposable over-cap plastic lid which
incorporates a straw access opening which is constructred in
accordance with the teachings of the present invention; FIG. 2 is
an enlarged fragmentary top plan view of a portion of the lid shown
in FIG. 1 including the straw access opening thereof;
FIG. 3 is a fragmentary top plan view of the plastic lid
illustrated in FIG. 1 and depicting a straw just prior to being
inserted through the straw access opening;
FIG. 4 is a fragmentary top plan view of the lid similar to FIG. 3
and illustrating a straw inserted through the straw access opening
of th lid; and
FIG. 5 is a side elevational view, partly in section, of a
container with a lid wherein the lid includes a straw access
opening as disclosed herein in order to permit the straw to be
moved from the dotted vertical position when inserted through the
straw access opening of the lid to the inclined position to
facilitate sipping from the straw.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
While the lid shown in the drawing is of the plastic over-cap type,
it will be apparent that snap-in paper lids, if sufficiently
flexible, may be utilzed with equal facility.
The plastic over-cap lid 10 illustrated in FIGS. 1-5 of the drawing
includes a diaphragm-like closure or top covering wall 12 which may
be provided with a circular reinforcing rib 14, if desired. At the
periphery of the lid 10, a rim engaging area 16 is provided with
inner, top and outer wall sections 18, 20 and 22 respectively which
are suitably configured relative to the rim of the container with
which the lid 10 is assocated in order to provide a snap-fit
relative thereto. In the case of a paper disc-type lid, whic is
adapted to be snapped into a groove formed in the container side
wall, the rim engaging area 16 is not required.
Attention is now directed to the straw access opening 24 of the
present invention. As is clearly depicted in the drawings, the
straw access opening 24 comprises a generally T-shaped slit having
a cross-bar section 26 and a leg section 28. Preferably, the
T-shaped slit is formed in the diaphragm-like wall 12 of the
closure 10 in an off-center position in order to permit a straw
inserted through the T-shaped slit to be disposed, for example, in
the full-line position illustrated in FIG. 5 as will become
apparent.
The use of a T-shaped 24 in an off-center position with the leg
section 28 of the T-shaped slit closer to the periphery of the lid
10 than the cross-bar section 26 provides a number of
advantages.
Referring first to FIGS. 3.5 of the drawing, it will be seen that
when a straw 30 is positioned above the leg section 28 of the
T-shaped slit and then pressure is applied to insert the straw 30,
the T-shaped slit 24 will open up as is seen in FIG. 4 of the
drawing to permit the straw 30 to be inserted. As this is done,
portions of the diaphragm-like wall 12 on opposite sides of the leg
section 28 below the cross-bar section 26 form a pair of flexible
wing elements 32, 34 respectively which flexibly engage and
automatically incline the straw 30 from the inserted dotted line
position illustrated in FIG. 5 to the full line inclined position
to facilitate sipping from the straw 30.
In order to facilitate bending or flexing of the flexible wing
elements 32, 34, hinge or fold lines 36, 38 may be formed between
the free ends of the crossbar section 26 and the free end of the
leg section 28 as is illustrated in FIG. 3 of the drawing.
In order to provide the automatic inclination of the straw 30 when
inserted through the T-shaped slit, the flexible wing elements 32,
34 must be appropriately configured, arranged and dimensioned in
order to achieve this. More specifically, the flexible wing
elements 32, 34 are designed to flexibly engage the straw 30, when
inserted therebetween, and at the same time, force the straw 30
against the inner edge 40 which is formed by the cross-bar section
26 of the T-shaped slit 24. As the wing elements 32, 34 flexibly
engage the straw 30 and force it against the inner edge 40, the
effect will be to incline the straw 30 from the dotted to the full
line position illustrated in FIG. 5 of the drawings when the user
releases the straw 30 after inserting the same. The action that is
produced on the straw 30 by the flexible wing elements 32, 34 may
be referred to as a "snubbing" action in that the straw 30 is
suddenly checked or brought from a vertical to an inclined position
as has been described. The "snubbing" action that is produced is
dependent upon a number of factors such as the size and shape of
the wind elements, the flexibility of the wing elements, the
location of the wing elements relative to the periphery of the lid,
etc. It will suffice for the purposes of the present discussion to
indicate that the wing element 32, 34 must be appropriately
configured, arranged and dimensioned in order to flexibly engage
and automatically incline the straw 30 which is positioned
therebetween.
In addition to the automatic inclination of the straw 30, the
T-shaped slit of the present invention affords a number of other
advantages. It will be apparent that minimum tooling and
fabrication costs will be required in order to produce the T-shaped
slit 24 in order to achieve the automatic inclination of the straw
30. Further, the T-shaped slit 24 provides limited egress of
liquids from within the container with which the lid 10 is
associated while providing a limited vent space in the cross-bar
and leg sections 26, 28 of the T-shaped slit to permit the venting
of any air or gas pressure built up within the container when the
lid is assembled thereto. Where an additional vent opening is
required, a small hole may be provided in a number of areas of the
T-shaped slit such as, for example, the area in the vicinity of the
juncture of the cross-bar and leg sections 26, 28 of the T-shaped
slit 24. It will further be appreciated that the T-shaped slit 24
literally enables the straw 30 to be inserted therethrough without
any deformation of the straw.
The straw access opening of the present invention thus provides
multifold advantages which heretofore have been unavailable. The
shape or configuration of the straw access opening is limited only
insofar as there must be provided a pair of flexible wing elements
which are adapted to flexibly engage and automatically incline a
straw positioned therebetween. Thus, while the T-shaped slit 24 is
the preferred form of the invention since it achieves a number of
advantages, the shape or configuration of the straw access opening
may be modified within the above parameters. For example, the
cross-bar section 26 can be bent into either an upright or inverted
V-shape which, together with the leg section 28, will provide the
desired features of the present invention.
From the foregoing, it will now be appreciated that the present
invention provides a unique straw access opening in a lid which
gives many advantages which heretofore were unavailable.
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