Structure for prevent the liquid from leaking of a cap
The present invention relates to a bottle cap with leakage-proof feature for liquid therein, which comprises a bottle cap and a dividing disk, wherein bottle cap having an internal hollow cavity, an internal communicating channel and an internal concentric lining ring with inwards buckling groove ring being crotched in the inner wall of the hollow cavity facing the communicating channel such that a flexible rift ring being formed between the peripheral surface of the lining ring and the inner surface of the communicating channel; And the dividing disk having an up-facing flexible cleft ring being notched near the peripheral of the top surface. By means mutual counter elastic stress by the strained flexible rift ring and flexible cleft ring reciprocally, the buckling-fitting condition between the lateral surface of the dividing disk and the inner surface of the lining ring is more firmly tight.
The present invention relates to a “bottle cap with leakage-proof feature for liquid therein”, particularly for a bottle cap filled with liquid being constantly kept therein by leakage-proof design without any leakage so that defective commodity from liquid therein unexpectedly mixing with the liquid in the container is avoided when the lateral surface of the bottle cap deforms due to the stress of the external force.
BACKGROUND OF THE INVENTIONBy means of filling a second beverage in the bottle cap of the associated bottle or container beforehand for optionally mixing with the first beverage in the bottle or container, the integral bottle and cap provides the consumer with extra choice for tasting the mingling flavor of mixture of second beverage and first beverage other than the usual flavor of first beverage in the bottle or container. Accordingly, various structures of such kind bottle cap with filling of second beverage are contrived and disclosed, for example, US patents in number of U.S. Pat. No. 3,968,872, U.S. Pat. No. 4,903,865 and U.S. Pat. No. 5,170,888; Japanese published patents in number of 2003-12015, 2004-83022, 2004-323097, 2004-338751, 2005-22706, 2006-27727, 2006-103781, 2006-117305, 2006-151449, 2006-151457 and 2006-232290 as well as mainland China utility model patent in number of 93241475.3 and the like are all in this category. Wherein, the structure of the bottle cap disclosed in the China utility model patent in number of 93241475.3 is shown as in the
From disclosure above, the material of diaphragm 4 is different from that of the bottle cap 1 as they stuck together by some kind of glue over the surface of the internal thread 101 in the bottle cap 1. Since the surface of the internal thread 101 of the bottle cap 1 is continuous spiral scraggy thread without any backing supporting jut for the diaphragm 4, to firmly stick the smooth peripheral of disk-shaped diaphragm 4 with the jagged surface of the internal thread 101 without defect in mass production is hardly achieved by the level of current industrial facility and technology. Moreover, applying the glue over the peripheral of the diaphragm 4 for sticking together with the internal thread 101 of the bottle cap 1 inevitably causes the hygienic safety issue due to liquid material 5 therein either contaminated or chemically reacted with the glue so that becomes the main reason for the real product of such new model patent is not introduced in the market so far. As generally knowledge, industrial mass production of the bottled drinking water in the current market must be automatically controlled via a series of consistent process without any contamination or pollution to comply with regulatory requirements and criterion for the drinkable and hygienic safety. However, the technology disclosed in the China utility model patent in number of 93241475.3 is only an infeasible hollow word as essentially unable to achieve the requirements and criterion aforesaid that does not meet the patentable criterion of practical usage.
For the products of other prior arts from the USA and Japan patents mentioned above, they are not popularly accepted in the market because their astonishing high price reflected from the structural complexity of the component design. Realizing all the facts aforesaid and addressing various drawbacks associated, the applicant of the present invention sets forth a previous patent application to your USPTO with filing number of U.S. patent application Ser. No. 11/149,355 after the accomplishment of a technological breakthrough via research and development. The marketable product of mass production associated with U.S. patent application Ser. No. 11/149,355 proves that meets the expected effects and the regulatory requirements and criterion for the drinkable and hygienic safety. Unexpectedly, a minor leakage of the filled liquid in the bottle cap happened during transportation. After careful study and research for troubleshooting the leakage issue, the cause is pinpointed as well as remedied and improved as below. As shown in the
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The primary object of the present invention is to provide a “bottle cap with leakage-proof feature for liquid therein”, which comprises an internal hollow cavity, an internal communicating channel and an internal concentric lining ring with inwards buckling groove ring being crotched in the inner wall of the hollow cavity facing the communicating channel such that a flexible rift ring being formed between the peripheral surface of the lining ring and the inner surface of the communicating channel; and an integral body of dividing disk having an up-facing flexible cleft ring being notched near the peripheral of the top surface. Firstly fill the liquid material into the hollow cavity of the bottle cap and next buckling-fit the buckling flange of the dividing disk together with the buckling groove ring around the lining ring in the hollow cavity inner wall of the bottle cap. Both of the rift width of the flexible rift ring and cleft width of the flexible cleft ring after the assembly of the bottle cap and dividing disk become smaller than those of the original widths because both of the flexible rift ring and flexible cleft ring have been strained by the forward squeezed stress. By means mutual counter elastic stress by the strained flexible rift ring and flexible cleft ring reciprocally, the buckling-fitting condition between the lateral surface of the dividing disk and the inner surface of the lining ring is more firmly tight. When the lateral surface of the bottle cap deforms due to the stress of the external force such as hand fingers pinch or hold, the corresponding strains of the flexible rift ring and flexible cleft ring respond to offset by their elasticity so that the tightly close-fitting condition is constantly kept without any gap; thereby, a watertight hollow cavity is remained to keep the liquid material therein and completely prevent it from leaking out.
The other object of the present invention is to provide a “bottle cap with leakage-proof feature for liquid therein” with plural blocking juts being evenly configured on the inner wall of the hollow cavity over the buckling groove ring of the lining ring within a quadrant manner. During screw-fitting operation of the bottle cap and the spout opening end of the container, when the buckling flange ring on the lateral surface of the dividing disk begins to slip away the buckling groove ring, the top surface of the dividing disk contacts the blocking juts meanwhile. By means of contact points of the blocking juts with the top surface of the dividing disk to serve as the fulcrums to let other side of the dividing disk raised, the liquid beverage in the hollow cavity easily flows downwards quickly and the downward counteraction resistance acting on the top surface of the dividing disk is indirectly deleted meanwhile; thereby, during entire slipping procedure of the dividing disk away the internal lining ring of the bottle cap, the effort-saving effect in turning and driving effort is achieved.
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Claims
1. A bottle cap with leakage-proof feature for liquid therein, comprising:
- a bottle cap having a closed-end top surface, an open-end bottom surface, a cylinder-shaped lateral surface and a safety tear strip ring such that an internal hollow cavity being formed near the top surface and an internal communicating channel with female thread therein being formed near the bottom surface, both of hollow cavity and communicating channel being connected through each other, the safety tear strip ring with a breakable end being formed the outer peripheral of the bottom surface. Wherein said bottle cap, an internal concentric lining ring with inwards buckling groove ring being crotched in the inner wall of the hollow cavity facing the communicating channel such that a flexible rift ring being formed between the peripheral surface of the lining ring and the inner surface of the communicating channel; and
- a dividing disk for being inserted into a buckling groove ring on a lining ring having a top surface, a bottom surface and a ring-shaped lateral surface such that the top surface facing the hollow cavity of the bottle cap and the bottom surface facing the communicating channel of the bottle cap after the dividing disk being inserted between the hollow cavity and the communicating channel inside of the bottle cap. Wherein said dividing disk, an up-facing flexible cleft ring being notched near the peripheral of the top surface and a buckling flange ring bulging around the top peripheral of the lateral surface for being buckle-fitted together with the buckling groove ring on the lining ring of the bottle cap.
2. A bottle cap with leakage-proof feature for liquid therein, as recited in claim 1, wherein a sealing flange ring is configured to wrap the bottom peripheral of the top surface of the dividing disk.
3. A bottle cap with leakage-proof feature for liquid therein, as recited in claim 1, wherein plural blocking juts are evenly configured on the inner wall of the hollow cavity over the buckling groove ring of the lining ring within a quadrant manner.
Type: Application
Filed: Oct 31, 2008
Publication Date: May 13, 2010
Inventor: Kuo Cheng Wu (Kaohsiung City)
Application Number: 12/289,643
International Classification: B65D 41/02 (20060101); B65D 41/00 (20060101);