DRINKING CUP THAT ROTATABLY ATTACHES TO A PLASTIC BOTTLE FOR CLOSURE AND PROTECTION
A drinking cup with a tubular protrusion molded to the bottom and having an internal thread that allows it to be rotatably attached to and detached from a bottle with a small cylindrical neck. The internal thread cooperates with an external thread that is molded on the small cylindrical neck of the bottle so that the drinking cup can function as a cap to close and seal the bottle when it is inverted and placed over the neck of the bottle.
1. Field of the Invention
Several beverages that are widely sold in the marketplace are packaged in thin-walled bottles made of plastic. The plastic bottles have a frusto-conical neck that terminates in a small cylindrical neck with an outer thread molded thereon. A plastic cap with an internal thread molded thereon is then used to close and seal the plastic bottle. The internal thread on the plastic cap is designed to cooperate with the external thread on the bottle to allow the plastic cap to be rotatably-removable so as to open and close the plastic bottle.
Once the plastic cap is removed, the beverage in the plastic bottle can be poured into a glass for consumption. Often, the bottles are too large and heavy for the user to drink the beverage straight out of the bottle, using a glass or cup is preferred. However, under many circumstances, a glass or a cup is not readily available. This is specially the case when the user is outdoors at a picnic, sporting event, hiking, etc. The lack of a cup available can be the source of major inconvenience or frustration. Users of the plastic bottles must always remember to transport cups along with the plastic bottle of beverage when leaving the house.
The placing of a cup in inverted position over the top of the plastic bottle is a stopgap measure if both items are transported together. However, a regular cup placed in inverted position over the plastic bottle does not lock or grab on to the bottle. Therefore, the cup can easily fall off during transport. Furthermore, the shape of a regular cup does not follow the contours of a plastic bottle so that when it is placed over the bottle, it is loose and may have a tendency to shift around significantly. Various products have been designed over the years to address this problem. For example, U.S. Pat. No. 4,150,761 teaches a cup with a plurality of inwardly projecting ribs which force-fit into engagement with the outer surface of the plastic cap. This allows the cup to be securely attached to the plastic cap which is surely attached to the bottle. Such secure attachments allow the cup to be transported attached to the bottle. Similarly, U.S. Pat. No. 2,584,522 teaches another cup that securely attaches to the cap of the bottle. In both cases, the cup and the cap are two separate items that cannot be removed together in a single operation. When it is desired to open the bottle in these assemblies, the cup must be removed first, and then the bottle cap may be removed.
On the other hand, U.S. Pat. No. 4,273,247 teaches a cup assembly that is securely attached to the cap so that both the cup and the cap may be rotatably removed from the s bottle as a unit. As the abovementioned prior art, this assembly includes a cup and a cap that are separate and independent of each other.
What is needed is a cup that can rotatably be attached to the plastic bottle for closing and sealing purposes. Such cup would eliminate the need of a separate and independent cap.
SUMMARY OF THE INVENTIONAccordingly, the present invention has been made in view of the above-mentioned disadvantages occurring in the prior art, and it is the object of the present invention to provide a drinking cup that can rotatably attach to the neck of a typical plastic bottle for closure and protection of the beverage inside the bottle.
It is another object of the present invention to provide a drinking cup that when attached to the neck of a plastic bottle serves to stabilize and support another plastic bottle that is stacked on top of it for easy and stable transport and storage.
To accomplish the above objects, the present invention is embodied in a drinking cup comprising a tubular protrusion molded to the bottom of the cup and having an internal thread molded on the inner surface of its sidewall. The size of the tubular protrusion is such that, when the drinking cup is inverted and placed over a plastic bottle, the tubular protrusion fits over the small cylindrical neck of the bottle. Then as the drinking cup is twisted or rotated about the bottle, the internal thread of the tubular protrusion mates and cooperates with the external thread molded on the outer surface of the neck of the bottle until the bottle is fully closed and sealed. Furthermore, the drinking cup has a base that is used primarily to stabilize and support the cup as it rests on a flat surface. But, secondarily, when a bottle is closed with the drinking cup of the present invention, the cup is in the inverted position with the bottom of the base facing upward. Thus, the bottom of the base serves to stabilize and support another plastic bottle that is stacked on top of it for easy transport and storage.
Another embodiment of the present invention is a drinking cup that can rotatably attach to the neck of a plastic bottle and having a radial bead on the top rim to allow a smooth rounded surface which the user's lips touch as he/she drinks the beverage.
The above and other features and advantages of the present invention, as well as the structure and operation of the various embodiments of the present invention, are described in detail below with reference to the accompanying drawings.
The accompanying drawings, which are incorporated herein and from part of the specification, illustrate various embodiments of the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the invention. In the drawings, like reference numbers indicate identical or functional similar elements. A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
Reference will now be made to the drawings in which various elements of the present invention will be given numerical designations and in which the invention will be discussed so as to enable one skilled in the art to make and use the invention.
As shown in
As shown in
When the drinking cup 100 is inverted and placed over a plastic bottle, the domed sidewall 20 of the preferred embodiment of the present invention aids in directing the small cylindrical neck of the plastic bottle into the stem 10, as shown in
As shown in
The base 50 is also designed with sufficient strength to support the weight of another beverage plastic bottle during storage and transport. A plastic bottle can be closed and sealed with the inverted drinking cup 100 of the present invention. Hence, the bottom of the base 50 would face upward to provide a surface on which another plastic bottle can be rested during storage and/or transport, as shown in
An alternative embodiment of the drinking cup 100 of the present invention has a round annular bead 60 molded on to the top rim 22. The round annular bead 60 creates a smooth and comfortable surface for when the consumer's lips make contact to drink the beverage. The annular bead 60 has a circular cross-section with a diameter that is thicker than the sidewall 20.
It is to be understood that the described embodiments of the invention is illustrative only and that modifications thereof may occur to those skilled in the art. Accordingly, this invention is not to be regarded as limited to the embodiments disclosed, but is to be limited only as defined by the appended claims herein.
Claims
1. A drinking cup for use with a bottle having a cylindrical neck with an external thread thereon and comprising:
- a top opening;
- a top rim that defines said top opening;
- a base;
- a tubular protrusion extending from said base and having an inner surface with an internal thread thereon; and
- wherein said internal thread cooperates with said external thread of said bottle so that said drinking cup can be rotatably attached to and detached from said cylindrical neck to open and close said bottle, respectively.
2. The drinking cup according to claim 1, further comprising a bead that radially extends throughout said top rim.
3. A drinking cup for use with a bottle having a cylindrical neck with an external thread thereon and comprising:
- a top opening;
- a top rim that defines said top opening;
- a sidewall with a dome-like shape;
- a stem extending downward from said sidewall and having an inner surface with an internal thread thereon;
- wherein said internal thread cooperates with said external thread of said bottle so that said drinking cup can be rotatably attached to and detached from said cylindrical neck to open and close said bottle, respectively; and
- a base attached to said stem for stability and support when said drinking cup rests on a flat surface.
4. The drinking cup according to claim 3, further comprising a bead that radially extends throughout said top rim.
Type: Application
Filed: Dec 29, 2010
Publication Date: Jul 5, 2012
Inventor: Dong Ki Lee (Glendale, CA)
Application Number: 12/980,332
International Classification: A47G 19/22 (20060101);