U.S. patent number 3,776,458 [Application Number 05/191,689] was granted by the patent office on 1973-12-04 for telescopic drinking straw.
This patent grant is currently assigned to Creative Product Lines Inc.. Invention is credited to Lorenzo Chunga, Sr..
United States Patent |
3,776,458 |
Chunga, Sr. |
December 4, 1973 |
TELESCOPIC DRINKING STRAW
Abstract
A telescopic drinking straw in which a first elongated tubular
cylinder has a second tubular cylinder slidably disposed therein.
The first cylinder and the second cylinder are provided with
annular flanges which retain the ends of a coil spring disposed
over the cylinders. The spring forces the second cylinder
vertically upward out of the first cylinder when the cap of a
container in which the straw is packaged is removed, thereby making
the straw available to the user for drinking of the liquid in the
container. The outer cylinder of the drinking straw may also be
provided with a plurality of slots at a particular point along its
length. One end of the telescopic outer portion is affixed to the
inner section of the straw, so that when the outer section is
compressed downwardly to be packaged into a bottle, the portion
containing the slots will extend outwardly and act as a spring
forcing the outer telescopic section against the inner surface of
the container cap. When the cap is removed, the extended portions
contract inwardly, forcing the telescopic section out of the
container.
Inventors: |
Chunga, Sr.; Lorenzo (Brooklyn,
NY) |
Assignee: |
Creative Product Lines Inc.
(Somerset, NJ)
|
Family
ID: |
22706532 |
Appl.
No.: |
05/191,689 |
Filed: |
October 22, 1971 |
Current U.S.
Class: |
239/33; 220/705;
215/388; 215/229; 229/103.1 |
Current CPC
Class: |
B65D
77/283 (20130101) |
Current International
Class: |
B65D
77/28 (20060101); B65D 77/24 (20060101); A47g
021/18 () |
Field of
Search: |
;239/24,33
;215/47,1R |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Wood, Jr.; M. Henson
Assistant Examiner: Thieme; Reinhold W.
Claims
What is claimed is:
1. A telescopic drinking straw, comprising;
a first elongated tubular cylinder,
a second elongated tubular cylinder, having a diameter less than
the diameter of said first cylinder, slidably disposed within said
first cylinder,
retaining means rigidly affixed to the exterior surfaces of said
first and second cylinders, and
spring means, disposed about said first and second cylinders, and
secured by said retaining means, for exerting oppositely directed
forces on said retaining means and said first and second cylinders
so that said second cylinder is ejected from said first cylinder
and the neck of the container in which the straw is packaged when
the cap of the container is removed.
2. The telescopic drinking straw as recited in claim 1 further
comprising abutment means rigidly affixed to the interior wall of
said first cylinder at one end thereof, and wherein said second
cylinder includes a first portion having a diameter substantially
smaller than said first cylinder which is slidable between said
abutment means, and a second portion having a diameter slightly
smaller than that of said first cylinder for providing a snug fit
within said first cylinder and comprising one end of said second
cylinder, for engaging said abutment when said second cylinder is
ejected from said first cylinder and thereby limiting the outward
movement of said second cylinder from said first cylinder.
3. The telescopic drinking straw as recited in claim 2, wherein
said retaining means comprises first and second annular flanges
rigidly affixed to the exterior surfaces of said first and second
cylinders respectively, defining a pair of annular recesses around
said cylinders opening inwardly towards each other along the
longitudinal axes of said first and second cylinders.
4. The telescopic drinking straw as recited in claim 3, wherein
said spring means is a coil spring disposed over said first and
second cylinders having its ends disposed in said first and second
annular flanges on said cylinders.
5. A telescopic drinking straw, comprising;
a first elongated tubular cylinder,
a second elongated tubular cylinder, having a diameter smaller than
that of said first cylinder, slidably disposed within said first
cylinder,
retaining means affixed to the exterior surface of said first
cylinder at one end thereof, and
spring means disposed over the end of said first cylinder so as to
engage said retaining means and the bottom surface of the container
in which the straw is packaged, for ejecting said first and second
cylinders out of the container when the cap of the container is
removed and thereby allowing said second cylinder to be manually
withdrawn from said first cylinder for drinking the liquid in the
container.
6. The telescopic straw as recited in claim 5 further comprising
abutment means affixed to the interior surface of said first
cylinder at one end thereof, and wherein said second cylinder
includes a first portion having a diameter substantially less than
that of said first cylinder which is slidable between said abutment
means, and a second portion having a diameter slightly less than
that of said first cylinder for providing a snug fit within said
first cylinder and comprising an end portion of said second
cylinder, for engaging said abutment means when said second
cylinder is withdrawn from said first cylinder and thereby limiting
the outward movement of said second cylinder from said first
cylinder.
7. The telescopic drinking straw as recited in claim 6, wherein
said retaining means comprises an annular flange affixed to the
exterior surface of said first cylinder at the lower end thereof
which defines an annular recess around said cylinder opening
downwardly along the longitudinal axes of said first and second
cylinders.
8. The telescopic drinking straw as recited in claim 7, wherein
said spring means is a coil spring disposed over one end of said
first cylinder, having one end retained in said annular flange and
the other end thereof abutting the bottom surface of the container
in which the straw is packaged.
9. A telescopic drinking straw, comprising;
a first elongated tubular cylinder,
a second elongated tubular cylinder having a diameter smaller than
that of said first cylinder, slidably disposed within said first
cylinder,
retaining means affixed to the exterior surface of said first
cylinder at a selected point thereon, and
elongated, flexible spring bands formed by a plurality of elongated
slots cut in said first cylinder, said bands being forced outwardly
when said first cylinder is compressed downwardly over said second
tubular cylinder, for ejecting said first cylinder out of the
container when the cap of the container is removed and thereby
allowing said first cylinder to be manually extended from the
container for drinking the liquid therein.
10. The telescopic drinking straw as recited in claim 9, wherein
said retaining means comprises an annular flange affixed to the
exterior surface of said second cylinder at the lower end thereof,
said flange defining an annular recess around said cylinder opening
upwardly along the longitudinal axes of said first and second
cylinder.
Description
The present invention relates to drinking straws, and in
particular, to a telescopic drinking straw, consisting of two or
more tubular cylinders, one of which is spring loaded so that the
straw will be ejected out of the neck of a container when the
latter is opened.
Presently, many different methods are used to eject a straw from a
bottle or container when the cap is removed. Some manufacturers
have affixed bell-shaped elements to the lower portion of the straw
to collect carbon dioxide gases given off when the bottle is opened
and raise the straw out of the bottle; some have used telescopic
sections provided with air jackets submerged in the liquid so that
the straw will rise out of the bottle when the cap is removed; and
others have used the compressed air in the bottle to raise a
telescopic portion of the straw which is sealed at one end and
positioned over the main portion of the straw to expose drinking
apertures in the sealed section. These drinking straws, however,
are not particularly reliable since they depend on the creation of
some type of gas present in the liquid or container to raise the
straw. Such devices may be suitable for soft drinks, but are
totally inappropriate for other non-gaseous liquids. Furthermore,
these devices often do not provide a sufficient force to eject the
straw from the bottle.
Accordingly, the present invention provides a telescopic drinking
straw comprising a first tubular cylinder for disposal within the
liquid contained in the bottle, and a second tubular cylinder
slidably disposed within the first tubular cylinder of the straw.
The second cylinder has a lower end portion whose diameter snugly
fits within the diameter of the first cylinder. The remaining
portion of the second cylinder has a substantially smaller diameter
so as to be slidably disposed through an annular abutment provided
on the interior wall of the first cylinder at its upper end. Both
the first and second cylinders are provided with annular flanges,
opening inwardly towards each other along the longitudinal axes of
the cylinders, affixed to the outside surfaces of each cylinder
near the upper ends thereof. A coil spring is disposed about the
first and second cylinders and is retained in place between the
flanges. When the cap is sealed on the container, the spring forces
the second cylinder against the inside surface of the cap. Thus,
when the bottle is opened, the second cylinder is ejected
forcefully from the container to enable immediate drinking of the
liquid.
In a second embodiment of the invention, the first and second
cylinders are arranged as described above. However, a single
annular flange opening vertically downward is provided on the lower
end of the first cylinder. A coil spring is retained over the end
of the first cylinder. by the annular flange and also abuts the
bottom surface of the container so that when the container is
capped, the spring will be compressed against the lower surface of
the container. When the container is opened, the spring will force
the entire telescopic straw up out of the neck of the bottle, and
the user may then extend the second cylinder from within the first
cylinder manually.
In another embodiment of the invention, the outer telescopic
portion of the straw is provided with a plurality of slots cut
therein at a selected position along its length. A plurality of
flexible bands are thus formed, which are compressed and forced
outwardly when the straw is packaged in a container. The lower end
of the outer telescopic portion is affixed to the inner portion,
and, as a result, the flexible bands act as a spring and force the
outer telescopic section upwardly against the inner surface of the
container cap. When the cap is removed, the flexible bands pull
inwardly and force the outer telescopic section upwardly out of the
neck of the container.
It is therefore an object of the present invention to provide a
drinking straw which may be prepackaged within a beverage container
and be of immediate use to the consumer upon opening the
container.
It is another object of the present invention to provide a drinking
straw which may be prepackaged in a container and thereby eliminate
the need for dispensing separately packaged drinking straws.
It is a further object of the present invention to provide a
telescopic drinking straw which is forcefully ejected from the neck
of a beverage container when the container is opened.
It is also an object of the present invention to provide a
telescopic drinking straw which is simple in design, easy to
manufacture, and efficient and reliable in operation.
Other objects and features of the present invention will become
apparent from the following detailed description considered in
connection with the accompanying drawings which disclose several
embodiments of the invention. It is to be understood, however, that
the drawings are designed for the purpose of illustration only and
not as a definition of the limits of the invention.
In the drawings, wherein similar reference characters denote
similar elements throughout the several views:
FIG. 1 is a cross-sectional view of a telescopic drinking straw
constructed in accordance with the present invention, showing the
drinking straw packaged within a beverage container;
FIG. 2 is a partial cross-sectional view of the drinking straw
shown in FIG. 1, shown in its extended position after the cap has
been removed from the container, and
FIG. 3 is a partial cross-sectional view of another embodiment of a
telescopic drinking straw constructed in accordance with the
present invention, shown in its extended position after removal of
the cap of the container;
FIG. 4 is a partial, cross-sectional view of another drinking straw
constructed in accordance with the present invention, showing the
beverage straw packaged within a beverage container; and
FIG. 5 is a partial, cross-sectional view of the drinking straw
shown in FIG. 4, shown in its extended position after the cap of
the beverage container has been removed.
Referring to FIGS. 1 and 2, there is shown telescopic drinking
straw 10 disposed within bottle 11 which is sealed by cap 12. First
tubular cylinder 13 is disposed within the bottle in liquid 14.
Second tubular cylinder 15 is slidably disposed within cylinder 13,
and has end portion 16 whose diameter is slightly less than that of
cylinder 13 so that it fits snugly within the first cylinder. The
remaining portion of cylinder 15 has a diameter considerably
smaller than end portion 16 so that it may be slidably disposed
between an annular abutment 17 provided on the interior wall of
cylinder 13. Thus, cylinder 15 may be slidably moved within
cylinder 13, but its outward movement from cylinder 13 is limited
by the annular abutment when it is engaged by end portion 16.
Cylinders 13 and 15 are constructed of any suitable material, such
as that presently used for conventional drinking straws, including
plastic, metal, wax or resin-coated or impregnated paper, and
vegetable or synthetic fibers.
On the exterior surfaces of cylinders 13 and 15, retaining means
shown as annular flanges 18 and 19 define annular recesses which
face inwardly towards each other along the longitudinal axes of the
cylinders. Spring means shown as coil spring 20 is disposed about
the cylinders, and has each of its ends secured in the flanges. The
spring is constructed of any suitable material, such as plastic or
metal, and is compressed upon the straw between the flanges prior
to sealing the container. The spring then forces cylinder 15
against cap 12 and cylinder 13 against the bottom surface of bottle
11 while the bottle is closed. Thus, when cap 12 is removed, spring
20 will force cylinder 15 upwardly out of the bottle as illustrated
in FIG. 2, so that the straw will be readily available to the user
for drinking the liquid.
In FIG. 3, another embodiment of the telescopic straw of the
present invention is illustrated. Cylinders 13' and 15' are
substantially the same as cylinders 13 and 15 in the previously
described embodiment. However, in this embodiment, cylinder 13' is
provided with annular flange 21 at the lower end thereof over which
coil spring 20', which is the same as spring 20 in the previous
embodiment, is disposed. When the bottle is capped, spring 20' is
compressed between flange 21 and the bottom surface of bottle 11,
and cylinder 15' will be positioned substantially within cylinder
13'. When the cap of the bottle is removed, spring 20' will force
cylinder 13' upwardly so that the entire straw protrudes from the
neck of the container. The user may then manually pull cylinder 15'
upwardly out of cylinder 13' in order to drink the liquid. The
materials used to construct cylinders 13' and 15', and spring 20',
are the same as those described with respect to the embodiment of
FIGS. 1 and 2.
In FIGS. 4 and 5, another embodiment of the telescopic straw of the
present invention is shown. Drinking straw 10 is disposed within
bottle 11 having a cap 12 sealing the container. A first tubular
cylinder 22 is disposed within liquid 14 and has a second tubular
cylinder 23 slidably disposed over it. One end of cylinder 23 abuts
an annular flange 24 affixed to the outer surface of cylinder 22
near one end thereof. Cylinder 23 is provided with a plurality of
elongated slots 25 cut longitudinally along its length, which form
a plurality of elongated bands of material 26 which are flexible
outwardly. When cap 12 is placed on container 11 and the outer
cylinder 23 forced downwardly over cylinder 22, flexible bands 26
will be bent outwardly as shown in FIG. 4. The bands are elastic,
and act as a spring, forcing cylinder 23 up against the inner
surface of the cap 12. When the cap is removed, bands 26 will
spring inwardly to reassume their original shape, and outer
cylinder 23 will be forced upwardly over cylinder 22 and out of the
neck of container 11. The straw is then easily accessable to the
user, and may then be drawn manually out of the container to
further elongate the telescopic straw.
It should be noted, that slots 26 may be disposed at any point
along the length of outer cylinder 23. It is not necessary that the
slots be located at the lower end of the cylinder, as
illustrated.
The outer cylinder 23 may be contructed of any type of suitable,
plastic, elastomeric or other resilient inert material.
While only several embodiments of the present invention have been
shown and described, it will be obvious to those skilled in the art
that many changes and modifications may be made thereunto without
departing from the spirit and scope of the invention.
* * * * *