U.S. patent application number 11/016813 was filed with the patent office on 2006-06-22 for pressurized container for fluid.
Invention is credited to Chang-Keng Tsai.
Application Number | 20060131341 11/016813 |
Document ID | / |
Family ID | 36594417 |
Filed Date | 2006-06-22 |
United States Patent
Application |
20060131341 |
Kind Code |
A1 |
Tsai; Chang-Keng |
June 22, 2006 |
Pressurized container for fluid
Abstract
A pressurized container for fluid is disclosed. The container
has a dual-layered soft material and an inner valve plate acting on
each other alternatingly to squeeze out the contents in the
container. The valve plate is a plugging valve which is effectively
isolating the contact of the content with the external, and allows
fix amount squeezing of material. A lower valve plate is provided
ON and OFF which allows the internal pressure within the container
to increase if the container is squeezed so that the upper valve
plate is open, and the contents of the container can be
discharged.
Inventors: |
Tsai; Chang-Keng; (Taipei
City, TW) |
Correspondence
Address: |
LEONG C LEI
PMB # 1008
1867 YGNACIO VALLEY ROAD
WALNUT CREEK
CA
94598
US
|
Family ID: |
36594417 |
Appl. No.: |
11/016813 |
Filed: |
December 21, 2004 |
Current U.S.
Class: |
222/213 |
Current CPC
Class: |
B65D 47/06 20130101;
B65D 81/2061 20130101; B65D 23/02 20130101; B65D 77/225 20130101;
B65D 1/32 20130101 |
Class at
Publication: |
222/213 |
International
Class: |
B65D 37/00 20060101
B65D037/00 |
Claims
1-3. (canceled)
4. A pressurized container for fluid comprising: an external soft
container having a neck provided with an opening, said external
soft container having a lower portion provided with an air pore and
a first valve plate mounted on an inner side of said external soft
container and closably engaged with said air pore, said neck being
formed with an inner circular slot and a lug extending inwardly
from an inner side of said neck; a top cover engaged with said top
of said external soft container; an inner soft pocket body fitted
within said external soft container; and a plugging valve having a
top provided with a blocking plate, a bottom provided with a second
valve plate, and an outer side provided with a circular peg, said
plugging valve being fitted in said neck of said external soft
container with said blocking plate positioned on a top of said neck
and said circular peg engaged with said inner circular slot, said
second valve plate closably engaged with said lug; whereby when
said external soft container is compressed, content in said inner
soft pocket will be forced to push open said second valve plate and
said first valve plate will keep closed, and when said external
soft container is no longer compressed, the said external soft
container will return to original shape and said first valve plate
will be opened thereby enabling external air to be drawn into said
external soft container to substitute space occupied by said
content.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Technical Field of the Invention
[0002] The present invention relates to container, and in
particular, to a soft container having dual layers with an upper
and a lower value plate, acting alternatively in delivering fixed
amount of contents within the container.
[0003] (b) Description of the Prior Art
[0004] Soft, tubular containers are used to contain, for example,
tooth-paste, cream, lotion, gels, etc. FIG. 1 shows a conventional
soft container comprising a cap A1 and a tubular container A2. The
container can be compressed to deliver the contents within the
container which generally can be made from plastic material or
thin-metallic material. The drawbacks of the container made from
plastic material are: [0005] 1. When the container restores to its
original shape, the external air is drawn in. The air will cause
oxidation with the content of the container, and thus the content
cannot be kept for a long period. [0006] 2. The content may be
squeezed in a large amount which is a waste. [0007] 3. The content
within the container can never be squeezed out fully. The metallic
tubular container has the following drawbacks: [0008] 1. The shape
of the tube is changing each time, the tube is squeezed, and
accordingly, the shape is ugly. [0009] 2. The cap is needed so as
to keep the content from contact with the external air. [0010] 3.
After a squeezing action, the content of the tube may flow out
without stopping. [0011] 4. The content of the tube will never be
squeezed until the last drop.
[0012] Accordingly, it is an object of the present invention to
provide a pressurized container for fluid, which mitigates all the
above-mentioned drawbacks.
SUMMARY OF THE INVENTION
[0013] The primary purpose of the present invention is to provide a
pressurized container for fluid comprising a top cover, an
inner-layered soft pocket body, an external-layered soft container,
and a plugging valve, characterized in that the inner-layered soft
pocket body has a ring section with an appropriate length which can
adhere to the inner edge at the top end of the external-layered
soft container to form a body so that content within the pocket
body can be discharged via the opening of the external-layered soft
container; an external-layered soft container made from plastic
which can be restored to the original shape thereof and the inner
edge of the upper portion of the soft container is adhered to the
inner-layered soft pocket to form a body, and an air hole is
provided to the container, and a valve plate is adhered at the
inner face of the air pore to allow open and close operation, and
the plugging valve is positioned at the opening of the external
layered soft container to form upper section valve mechanism, and
the top section of the plugging valve has a blocking edge which can
be positioned on the opening of the container, and the inner bottom
edge thereof is a thin valve plate, the bottom edge at the bottom
of the opening of the container provides a closing mechanism, and
the external circumferential edge of the plugging valve has
ring-like peg which can seal with the circular slot at the opening
of the container.
[0014] Yet still another object of the present invention is to
provide a pressurized container for fluid, wherein the bottom
section of the plugging valve is a conic shape, allowing the
piercing of the external layered soft container.
[0015] Yet a further object of the present invention is to provide
a pressurized container for fluid, wherein the thin valve plate is
formed as sectional structure.
[0016] Other advantages of the present invention are: [0017] 1. The
external air will not be drawn into the container, even the cap is
not locked to the container. [0018] 2. The internal pressure of the
container is always kept constant, and therefore the amount of the
delivered content is easily controlled. [0019] 3. The external
shape will not change no matter how the tube is squeezed. [0020] 4.
The contents of the tube can be easily squeezed out and the
contents within the tube can be squeezed until the last drop.
[0021] Other objects, and advantages of the present invention can
be more fully understood by reading the following detailed
description of the preferred embodiment, with reference to the
accompanying drawings.
[0022] The foregoing object and summary provide only a brief
introduction to the present invention. To fully appreciate these
and other objects of the present invention as well as the invention
itself, all of which will become apparent to those skilled in the
art, the following detailed description of the invention and the
claims should be read in conjunction with the accompanying
drawings. Throughout the specification and drawings identical
reference numerals refer to identical or similar parts.
[0023] Many other advantages and features of the present invention
will become manifest to those versed in the art upon making
reference to the detailed description and the accompanying sheets
of drawings in which a preferred structural embodiment
incorporating the principles of the present invention is shown by
way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] FIG. 1 shows a perspective view of a conventional tubular
shape container.
[0025] FIG. 2 is a perspective view of a preferred embodiment in
accordance with the present invention.
[0026] FIG. 3 is an exploded perspective view showing the plugging
valve and the external layer of the soft container of the present
invention.
[0027] FIG. 4 is a schematic view showing the section of the
plugging valve in accordance with the present invention.
[0028] FIG. 5 is a sectional view of another plugging valve in
accordance with the present invention.
[0029] FIG. 6 is a sectional schematic view of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0030] The following descriptions are of exemplary embodiments
only, and are not intended to limit the scope, applicability or
configuration of the invention in any way. Rather, the following
description provides a convenient illustration for implementing
exemplary embodiments of the invention. Various changes to the
described embodiments may be made in the function and arrangement
of the elements described without departing from the scope of the
invention as set forth in the appended claims.
[0031] Referring to FIGS. 2, 3 and 6, there is shown the structure
of the container comprising a top cover 11, an inner soft pocket
body 12, an external soft container 13 and a plugging valve 14. The
plugging valve 14 is an element to be inserted into the opening 131
of the external soft container 13 so that the opening 131 has the
mechanism of a valve plate. This will reduce the cost of production
of the structure. As shown in FIG. 4, the plugging valve 14 has a
blocking edge 141 which can be positioned at the edge face of the
opening 131 of the container 13. The inner bottom edge is a thin
valve plate 142, and the external circumferential edge has one or
more circular peg, 143 so that when the plugging valve is being
inserted into the opening 131, the circular slot 132 will retain
the circular peg 143 so as to provide sealing. As shown in FIG. 3,
when the plugging valve 14 is inserted to the opening 131, the
interior formed by the opening 131 and the plugging valve 14 will
provide a structure a unit with that of the external layer soft
container 13.
[0032] As shown in FIG. 6, the inner layer is soft pocket body 12
which will not be easily broken, and the pocket can contain fluid,
lotion or cream B. The external layer container 13 is made from
soft plastic material but after the plastic material is squeezed,
it will restore to its original position.
[0033] An air pore 133 is provided to the container 13, and a lower
valve plate 134 is adhered at the inner face of the air pore 13 to
allow open or close so that air can be supplemented to provide
internal pressure. A circular section 121 is provided at the soft
material pocket body 12 having a length which adhere to the inner
edge of the top section of the container 13. The content B has an
inner soft pocket body 12 which isolates with the external layer
container 13. The pocket body 12 which does not adhere to the
external layer soft container 13 will move upward due to inner
pressure when it is squeezing so as to squeeze internally with the
outer layer soft container 13.
[0034] When the soft container 13 is squeezed, the content B is
restricted by the valve plate 142 and the lower valve plate 134 is
open and close alternatively. The two valve plates form an open and
close action by squeezing and releasing the content B. When the
external layer soft container 13 is compressed, the content B will
push open the valve plate 142, and the content B will smoothly
discharge via the opening of the valve plate 142. When the
compression action is not applied, the valve plate 142 will close
the opening 131 and the content B will fully isolate from the
external.
[0035] When the valve plate 142 is opened, the lower valve plate
134 provides an open and close action. When a compression action is
applied, the lower valve plate 134 will automatically close and the
internal pressure of the container 13 will increase so that the
lower valve plate 134 is closed. When the compression action is
released, the soft container 13 returns to its original shape and
the lower valve plate 134 will become an open position, and at this
time, the external air will be withdrawn to substitute the space of
the delivered content B.
[0036] Referring to FIG. 5, the design of the plugging valve 14 can
have a sharp conic shape 144 which can pierce the opening 131 of
the container 13. The bottom edge of the valve plate 142 can be
made into sectional structure which also can provide the equivalent
function.
[0037] It will be understood that each of the elements described
above, or two or more together may also find a useful application
in other types of methods differing from the type described
above.
[0038] While certain novel features of this invention have been
shown and described and are pointed out in the annexed claim, it is
not intended to be limited to the details above, since it will be
understood that various omissions, modifications, substitutions and
changes in the forms and details of the device illustrated and in
its operation can be made by those skilled in the art without
departing in any way from the spirit of the present invention.
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