Abstract:
An easily opened, elongated tubular container is disclosed. The container is composed of an inner tube having at least one open end and being adapted for filling with various liquid substances. An outer tube, relatively reciprocative with respect to the inner tube, and having at least one sealing element capable of sealing the open end of the inner tube is provided, and at least one attachment is installed at the exit open end of the outer tube. The sealing element, which is formed as one piece with the outer tube, closes the opening of the inner tube. The outer tube is displaceable, by the operator, from a position which closes the open end of the inner tube to the reverse position which releases the open end of the inner tube so that the liquid in the inner tube is released to flow out the open end and be absorbed by the attachment.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an easily opened elongated tubular container, and more particularly, to a secure, clean, and easily handled and opened elongated tubular container. 
     2. Description of the Prior Art 
     For treatment of minor trauma, it is common to apply liquid medicine to the wounds using a cotton swab moistened with the medicine from medicine vials. Such a method of treatment has several disadvantages, in that, for example, it is quite inconvenient to prepare a lot of medicine vials of every size, especially during a long distance tour or during outdoor activities. Furthermore, the medicine stored in a large container is susceptible to contamination or deterioration by frequency contact with the outside atmosphere or foreign materials, such as cotton swabs or spoons, which may cause the liquid medicine to vary its concentration through evaporation. 
     Similarly, perfumes, drinks, and seasonings encounter the same problems for storage as described above. If the container is too bulky, it is inconvenient to carry along, and specially made tools must be used to take them out. The inherent disadvantages described above such as contamination, deterioration, evaporation, and drying up will discourage customers. Some improvements must be made to overcome such disadvantages. 
     In view of the foregoing situation, the inventor of the present invention herein conducted extensive research based on many years of experience gained through professional engagement in the manufacturing of related products, with continuous experimentation and improvement culminating in the development of the improved structure of easily opened elongated tubular containers of the present invention. 
     SUMMARY OF THE INVENTION 
     It is a first object of the present invention to provide an easily opened elongated tubular container which can store medicine, cosmetics, liquid, food and drinks therein, the content being completely isolated from the environment before use, thereby preventing deterioration from being contacted with the atmosphere, thus extending the expected life span of the content. When the content in the container is to be used, the user may open the container with only his hand without the aid of any extra tool, and the liquid therein will flow out smoothly in a wholesome state. 
     It is a second object of the present invention to provide an easily opened elongated tubular container having both ends substantially sealed before use so that the content never leaks out without application of external means, thus leading to the advantage that there is no limit to the size of the openings so that the application field of the container is unlimited. 
     It is a third object of the present invention to provide an easily opened elongated tubular container such that the user may, according to actual requirements, optionally select attachments or tools of different kinds and sizes; for example, a sterilized cotton swab, a spoon, an agitator, or a brush to promptly contact the opened top end of the container for various applications. 
     It is a fourth object of the present invention to provide an easily opened elongated tubular container which is simply constructed, easily operable so as to facilitate the liquid content to automatically flow out in adequate amounts through air exchange in the container caused by the rapid opening of both ends thereof without squeezing the container by hand. 
     These and other objects of the present invention are achieved by providing an easily opened elongated tubular container composed of an inner tube, having at least one open end available for filling with various liquid substances; for example, medicines, cosmetics, perfumes, food and drinks, seasonings, and detergents, etc.; and an outer tube relatively reciprocative with respect to the inner tube and having at least one sealing element capable of sealing the open end of the inner tube; and at least one attachment installed at the open end of the outer tube. The sealing element, which is formed as one piece with the outer tube or, alternatively, is separately formed, normally closes the opening of the inner tube in a sealed state. However, the outer tube is displaceable by the operator from a position where the open end of the inner tube is closed to the other position where the open end of the inner tube is released so that the liquid filling the inner tube is released to flow out of the open end and is absorbed by the attachment installed at the exit open end of the outer tube. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     To enable a further understanding of the innovative and technological content of the invention herein, refer to the detailed description of the invention and the accompanying brief description of the drawings appended below: 
     FIG. 1 is a lengthwise cross-sectional view wherein the container is in the closed state in a first embodiment of the present invention; 
     FIG. 2 is a lengthwise cross-sectional view wherein the container is in the opened state in a first embodiment of the present invention; 
     FIG. 3 is a lengthwise cross-sectional view wherein the container is in the closed state in a second embodiment of the present invention; 
     FIG. 4 is a lengthwise cross-sectional view wherein the container is in the opened state in a second embodiment of the present invention; 
     FIG. 5 is a fragmentary three-dimensional view showing that a cotton swab is wrapped around the open end of the container of the present invention; 
     FIG. 6 is a fragmentary three-dimensional view showing that a spoon is attached to the open end of the container of the present invention; 
     FIG. 7 is a fragmentary three-dimensional view showing that a brush is attached to the exit terminal of the container of the present invention; 
     FIG. 8 is a lengthwise cross-sectional view wherein the container is in the closed state in a third embodiment of the present invention; 
     FIG. 9 is a lengthwise cross-sectional view wherein the container is in the opened state in a third embodiment of the present invention; 
     FIG. 10 is a three-dimensional perspective view of a hollow prism shaped container in a fourth embodiment of the present invention; 
     FIG. 11 is a three-dimensional perspective view of a flat hollow rectangular column shaped container in a fifth embodiment of the present invention; 
     FIG. 12 is a lengthwise cross-sectional view wherein the container is in the closed state in a sixth embodiment of the present invention; 
     FIG. 13 is a lengthwise cross-sectional view wherein the container is in the opened state in a sixth embodiment of the present invention; 
     FIG. 14 is a lengthwise cross-sectional view wherein the container is in the closed state in a seventh embodiment of the present invention; 
     FIG. 15 is a lengthwise cross-sectional view wherein the container is in the closed state in an eighth embodiment of the present invention; 
     FIG. 16 is a lengthwise cross-sectional view wherein the container is in the closed state in a ninth embodiment of the present invention; 
     FIG. 17 is a three-dimensional perspective view in a tenth embodiment of the present invention; 
     FIG. 18 is a lengthwise cross-sectional view wherein the container is in the closed state in a tenth embodiment of the present invention; 
     FIG. 19 is a lengthwise cross-sectional view wherein the container is in the opened state in a tenth embodiment of the present invention; 
     FIG. 20 is a lengthwise cross-sectional view wherein the container is in the closed state in an eleventh embodiment of the present invention; and 
     FIG. 21 is a lengthwise cross-sectional view wherein the container is in the opened state in an eleventh embodiment of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIG. 1, in the first embodiment of the present invention, the easily opened elongated tubular container comprises an inner tube for filling with various liquid substances, such as medicines, perfumes, cosmetics, food and drinks, seasonings, and detergents; and an outer tube  12  clad over the inner tube  11  and reciprocative with respect to the inner tube  11  along the lengthwise direction. 
     The inner tube  11  is formed into a slender straight tube made of non-poisonous plastics or other harmless materials. In the first embodiment, the inner tube  11  has two open ends  13  and  14  respectively at its two ends thereof. The inner tube  11  therefore can be formed of relatively simple and low production cost processes, for example, through extrusion, ejection, or other equivalent processes. 
     In the first embodiment, the outer tube  12  is divided into two separate tubular sections  15  and  16 , both made of plastics or other equivalent non-poisonous materials, each with an open end  17 ( 18 ). The inner diameter of the two sections  15 ,  16  is slightly greater than the outer diameter of the inner tube  11  so as to accommodate the inner tube  11  within the two outer tubular sections  15 ,  16 . A through hole  19  or  20  may optionally be bored near the open end  17  or  18 . First and second sealing elements  21  and  22  are respectively attached to the top fringes of open ends  17  and  18  through proper binding means. The lengthwise cross-section of the first and the second sealing elements  21 ,  22  is configured in a T-shape, and each sealing element  21 ( 22 ) has an annularly protruded lip portion  23 ( 24 ) extending a width approximately equal to the outer diameter of the tubular section  15 ( 16 ). As shown in FIG. 1, when the two tubular sections  16  and  16  approach each other, the stem portions  25 ,  26  of the sealing elements  21 ,  22  tightly plug into the two open ends  13 ,  14  of the inner tube space  11 , thereby prohibiting the liquid content stored therein to flow out unexpectedly. 
     The inner tube  11 , enclosed in the tubular sections  15 ,  16 , is provided with two outwardly protruded skid flanges  29 ,  30 , which face each other on the outer circumferential wall surface. The tubular sections  15 ,  16  are provided with inwardly extended positioning flanges  31 ,  32 , respectively, at their inner open ends for mating respectively with the protruded skid flanges  29 ,  30  such that the tubular sections  15 ,  16  are able to reciprocate between the retracted position (FIG. 1) and the extended position (FIG.  2 ). 
     When the tubular sections  15 ,  16  are located at the retracted position shown in FIG. 1, their inner open ends approach and mate with each other causing the stem portions  25 ,  26  of the sealing elements  21 ,  22  to tightly seal the two open ends  13 ,  14  of the inner tube  11 , thereby prohibiting the liquid content stored therein to flow out. 
     When the tubular sections  15 ,  16  are pulled away from each other and displaced to the extended position shown in FIG. 2, the positioning flanges  31 ,  32  of the tubular sections  15 ,  16  are respectively held by the skid flanges  29 ,  30  of the inner tube  11  without slipping. At the same time, the first and the second sealing elements  21 ,  22  are respectively removed from the open ends  13 ,  14  of the inner tube  11  so that the liquid content stored therein is able to flow or ooze out from the open ends  13 ,  14  to the through holes  19 ,  20  of the tubular sections, and to the liquid exuding holes  27 ,  28  on the first and the second sealing elements  21 ,  22 . 
     Referring to FIGS. 3 and 4, in the second embodiment of the present invention, the exits of the outer tube  12 , which is divided into two tubular sections  15 ,  16 , are respectively wrapped by sterilized cotton swabs or other liquid absorbable attachments  33 ,  34  which further cover the above-mentioned through holes  19 ,  20 , and the liquid exuding holes  27 ,  28 , for absorbing liquid  90  flowing or oozing out of the inner tube  11 . 
     The attachments  33 ,  34  may be in various forms according to their usage; for example, if the cotton swabs are for medical or cosmetic use, the cotton swabs  33 ,  34  can be wrapped around the exits of the tubular sections  15 ,  16 , as shown in FIG. 5, a spoon  60  for seasonings may be attached as shown in FIG. 6, a brush  61  for cosmetics as shown in FIG. 7, or even a churning stick so as to absorb or accept the liquid content flowing out of the inner tube  11  such as medicines, cosmetics, perfumes, seasonings, food and drinks, and detergents for users to apply on a trauma, for make up, seasoning, cleansing using the attachment  33 ,  34 . 
     Referring to FIGS. 8 and 9, in the third embodiment of the present invention, the length of the tubular sections  15 ,  16  are adjustable and are not limited to an equal length. Skid flanges  29 ,  30  can be formed at any portion of the inner tube  11 , depending on the relation of length between the tubular sections  15  and  16 . In other words, the length of the tubular sections  15 ,  16 , and the position of the skid flanges  29 ,  30 , with respect to the positioning flanges  31 ,  32  on the outer tubular sections  15 ,  16 , can be optionally adjusted and do not have to be limited by the embodiments of the invention shown in the attached drawings. 
     Referring to FIGS. 10 and 11, in the fourth and the fifth embodiments of the present invention, the configuration of the tubular container is not limited to a conventional hollow slender cylinder, it can be formed into a hollow prism shaped container  62 , as shown in FIG. 10, or a flat hollow rectangular column-shaped container  63 , shown in FIG. 11, or in any other suitable contour. In the embodiment of FIG. 11, the attachment  34  is conjoined on the end surface of the flat column container  63  such that the liquid stored in the inner tube  11  flows out of the through hole bored on the column container  63  and is absorbed by the attachment  34 . 
     In these two embodiments, the first and the second sealing elements  21 ,  22  are made independent of tubular sections  15 ,  16 , as in the first and the second embodiments, and then attached together with some proper binding means. Alternatively, the first and the second sealing elements  21 ,  22  can be formed as one piece, respectively, with the tubular sections  15  and  16 , as in the sixth embodiment shown in FIGS. 12 and 13. 
     Referring to FIG. 14, in the seventh embodiment of the present invention, the length of tubular sections  15 ,  16  may be reduced so that they will not mate with each other when they are positioned respectively at the open ends  13  and  14  of the inner tube  11 , as shown in FIG.  14 . 
     In the present invention, relative displacement of the tubular sections  15 ,  16  with respect to the inner tube  11  is not limited only to a horizontal sliding motion, as described in the previous embodiments. Means such as screw threaded motion, wriggling by corrugated pipe, and other equivalent means are applicable. 
     Referring to FIG. 15, in the eighth embodiment of the present invention, one or two outer threaded portions  43  can be provided on the outer wall surface of an inner tube  42  at its center portion, near both ends, or any other portion thereof. On the other hand, inner threaded portions  46  and  47  corresponding to the outer threaded portion  43  are formed respectively on the inner sides at the open ends of tubular sections  44  and  45 . By screw threaded motion, the tubular sections  44 ,  45  can reach the position closing the open ends  48 ,  49  of the inner tube  42  and, in reverse, be moved away from that position to open the open ends  48 ,  49 . 
     Referring to FIG. 16, in the ninth embodiment of the present invention, the threaded portions  43 ,  46 ,  47  can also be provided for relatively displacing the two tubular sections  50 ,  51  of reduced length, with respect to an inner tube  52 , as employed in the eighth embodiment. 
     FIG. 17 shows a three dimensional view of the tenth embodiment, the container of the present invention comprising an inner tube  11  filled with one of various kinds of liquid; an extendable and shrinkable outer tube  70 ; first and a second sealing elements  21 ,  22  for closing open ends  13 ,  14  of the inner tube  11 , respectively; and tools  80 ,  8  wrapped around or attached to the two ends of the outer tube for absorbing or accepting the liquid. 
     The extendable and shrinkable outer tube  70  is a hollow tubular body, made of non-poisonous material, having two open ends  71 ,  72 . The inner diameter of the outer tube  70  is slightly greater than the outer diameter of the inner tube  11 , allowing the inner tube  11  to be enclosed by the outer tube  70 . In addition to two through holes  74 ,  75  bored on the tube body  73  of the outer tube  70  near the two open ends  71 ,  72 , there are provided more than one expansible portions  76 ,  77  formed of corrugated pipes or other elastically expansible structure. By pulling or pressing the expansible portions  76 ,  77  along a lengthwise direction of the tube body  73 , the length of the outer tube  70  can be changed accordingly. 
     The first and second sealing elements  21 ,  22  are made of non-poisonous rubber or plastic materials whose longitudinal cross-section is formed as a T-shape. The annularly protruded lip portions  23 ,  24  formed on the top fringes of the first and the second sealing elements  21 ,  22  extend a width approximately equal to the outer diameter of the expansible outer tube  70 . The stem portions  25 ,  26  of reduced diameter of the first and the second sealing elements  21 ,  22  are tightly plugged into the two open ends  13 ,  14  of the inner tube  11 , thereby prohibiting the liquid content stored therein to flow out. 
     Referring to FIGS. 17 and 18, these two drawings belong to the tenth embodiment of the present invention. In FIG. 17, an extendable and shrinkable outer tube  70  is shrunk to a minimal length, which is almost as long as inner tube  11 , when the inner tube  11  is inserted into the outer tube  70  so as to clog two through holes  74 ,  75  formed on the tube body  73  of the outer tube  70 , and also closing a bottom open end  72  of the outer tube  70  with a second sealing element  22 . The annularly protruded lip portion  24  of the sealing element  22  is attached to the bottom fringe  79  of the outer tube  70 , while the stem portion  26  thereof is plugged into the inner tube  11 , thereby closing the bottom open end  14 . Then a selected liquid can be filled into the inner tube  11  through the top open end  13  thereof. After the inner tube  11  is filled with the liquid, sealing the top open end  13  of the inner tube  11  with the first sealing element  21 , and similarly, attaching the annularly protruded lip portion  23  of the first sealing element  21  at the top fringe  78  of the outer tube  70 , the stem portion  25  is plugged into the inner tube  11  so as to close the top open end  13  thereof. Finally, wrapping or attaching tools  80 ,  81  around or to the openings  71 ,  72  of the outer tube  70  for absorbing or accepting the liquid. The forms of the tools  80  and  81  can be varied according to the requirements of the user; for example, a sterilized cotton swab wrapped around the open ends  71 ,  72  or the through holes  74 ,  75  for absorbing medicines, for other purposes, the tools  80 ,  81  can be made into spoons, churning sticks or brushes, etc. 
     In case of need, the annularly protruded lip portions  23 ,  24  of the first and the second sealing elements  21 ,  22  may adhere to both top and bottom fringes  78  and  99  through use of a suitable binder so that the first and second sealing elements  21 ,  22  are firmly attached to the outer tube  70  without the risk of disconnection. 
     As shown in FIG. 19, if it is intended to take out the content stored in the inner tube  11 , the user may pull the outer tube  70  so as to stretch the expansible portions  76 ,  77  on the tube body  73 , thereby the outer tube  70  is elongated together with the two sealing elements  21 ,  22  and the tools  80 ,  81 . As a result, the sealing elements  21 ,  22  are separated from the open ends  13  and  14 , respectively, at the same time, the through holes  74 ,  75  provided on the tube body  73  of the outer tube  70  are released from closing the inner tube  11  so that the air confined in the inner tube becomes communicative with the outside via the through holes  74 ,  75  and the two open ends  13 ,  14  on the inner tube  11 , and the liquid stored in the inner tube  11  is able to flow out automatically via the open ends  13 ,  14  and the through holes  74 ,  75  by the outside atmospheric pressure, and is absorbed or accepted by the tools  80 ,  81  for various application described above. 
     Referring to FIGS. 17,  18 , and  19 , the flow rate and flow velocity are controllable by the diameter size of the through holes  74 , 75 . Besides, several through holes  27 ,  28 , which extend from the intermediate position of the stem portions  25 ,  26  of the sealing elements  21 ,  22  until puncturing through the annularly protruded lip portions  23 ,  24 , so as to make a pathway for the liquid stored in the inner tube  11  to reach the tools  80 ,  81  via through holes  27 ,  28 . This group of through holes  27 ,  28  and the other aforementioned group of through holes  74 ,  75  can either all be provided or, optionally, provided in any suitable sub-groups. 
     Referring to FIGS. 20 and 21, in the eleventh embodiment of the present invention, the features thereof are substantially similar to those of the tenth embodiment, wherein the essential difference between the two is that in the eleventh embodiment, there is one attachment (either a wrapped cotton swab or another tool)  81  attached to the bottom end of the extendable and shrinkable outer tube  70  only, other constructions regarding to the inner tube  11 , the first and second sealing elements  21 ,  22 , and method of operation being identical to the tenth embodiment. 
     Now, after having read the above description of selective embodiments, it will be clearly understood that the aforementioned objects of the present invention to provide an easily opened elongated tubular container for storing various kinds of liquid content in completely sealed condition before use, thereby assuring its quality; no limit to the size of tube openings; tools of different types and sizes being optionally selective according to user requirements; and with simple construction can thereby be achieved. 
     It is therefore to be understood that the above and other modifications and changes may be readily made in the construction and arrangement of elements comprising the preferred and modified forms of invention without departing from the spirit and scope of the invention as defined by the appended Claims and reasonable equivalents thereof. achieved. 
     It is therefore to be understood that the above and other modifications and changes may be readily made in the construction and arrangement of elements comprising the preferred and modified forms of invention without departing from the spirit and scope of the invention as defined by the appended claims and reasonable equivalents thereof.