Universal bottle base cup
A reusable base cup for removable attachment to the outside exterior base of a bottle in order to prevent the bottle from tipping over when pressurized. Several inner facing flexible tabs are situated along the circumference of the top edge. Each tab is permitted to flex and conform independently to the shape of the outside wall of the bottle base while exerting a constant force. The base cup can be securely attached to different bottles with slightly varying base diameters by manually pressing the bottle base into the base cup. The base cup will remain attached to the bottle base and can be manually removed for reuse with another bottle.
RELATED APPLICATIONS
This patent application claims priority from provisional patent application number 60/519,828 having a filing date of Nov. 13, 2003.
FIELD OF THE INVENTIONThis invention relates to bottle base cups, and in particular to bottle base cups that can be attached to the outside exterior base of a bottle in order to prevent the bottle from tipping over when pressurized.
DISCUSSION OF THE RELATED ARTA relatively thin walled plastic bottle with a flat bottom base is not well suited to store a liquid under pressure. An increase in air pressure within the bottle header space will typically cause the base to bulge outward forming a concave shape making it very easy for the bottle to tip over. It is recognized that placing a matching base cup onto the base of a pressurized bottle will prevent the bottle from tipping over when stored in the upright position. Typically, the matching base cup is custom made to fit the outside diameter of the bottle. In some embodiments, the matching base cup is glued or bonded on to the base of the bottle.
One drawback from this arrangement is that the base cup cannot be used on other bottles with slightly varying diameters. To exemplify further, the inside diameter of the base cup must fit securely to the outside diameter of the base of the bottle to from a firm and accurate fit. If the base cup is not fit properly to the matching bottle base, an undesirable effect will be achieved as the bottle may slant or tilt to one side when placed upright.
OBJECTS AND ADVANTAGES OF THE INVENTIONIt is a principle object of the present invention to provide an improved bottle base cup that can be attached to the base of a bottle in order to prevent the bottle from tipping over when pressurized with air.
Another object of the present invention is to provide an improved bottle base cup that has inner facing flexible fingers in order to conform to various bottle base diameters.
A further object of the present invention is to provide an improved bottle base cup that will not easily fall off the base of the bottle.
It is yet another object of the present invention to provide an improved bottle base cup that can be attached to the base of a bottle without the use of glue, bonding agents, or the like.
Yet another object of the present invention is to provide an improved bottle base cup that can be attached to the base of a trigger sprayer bottle in order to adapt and convert the bottle in to a pressure resistant bottle.
SUMMARY OF THE INVENTIONThe present invention is directed to a bottle base cup and includes a hollow cylinder that is open on one side and closed on the other. Flexible fingers are positioned around the circumference of the top open portion. These flexible fingers bend slightly inward in the relaxed state. When the cup is pressed onto the base of a bottle, the flexible fingers will bend out to conform and adjust to the shape of the base of the bottle. When the bottle base cup is fully pressed on, the fingers may exhort constant force against the bottle's external wall to grasp and prevent the bottle base cap from falling off.
When thin walled plastic bottles with flat bases are pressurized with air, the tendency is for the bottom to bulge outward causing the base of the bottle to become rounded. If an attempt is made to stand the bottle up on its base, tipping or falling over is likely to happen. Thus most plastic bottles with flat bases are not designed to be pressurized. A standard bottle with a flat base can be converted into a pressure resistant bottle simply by manually pressing on the bottle base cup on to the base of the bottle. Since pressurizing the bottle will cause the base to bulge, the bottle will not tip because the bottle base cup will allow the bottle base to bulge outward within the inside cavity of the bottle base cup as the flexible fingers center and secure the bottle.
One clear advantage is that one bottle base cup can conform to several off the shelf bottles with varying bottle base dimensions. If the outside diameter of the base of the bottle is smaller than the general inside diameter of the base cup, the flexible fingers will bend inward to exhort force and grasp and center the bottle. In addition, some off the shelf bottles have ribs that circumference the outside diameter near the base such as the case with most cylindrical trigger sprayer bottles. When the bottle base cup is pressed on, the flexible fingers will flex out and over thus clearing the ridges as the bottle travels downward.
BRIEF DESCRIPTION OF THE DRAWINGSFor a fuller understanding of the nature of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings in which:
In the description which follows, like parts are indicated throughout the specification and drawings with the same reference numerals, respectively. The drawings are not necessarily to scale and the proportions of certain parts have been exaggerated to better illustrate operation of the invention.
In
As seen in
When thin walled plastic bottles with flat bases are subject to pressure, the tendency is for the bottom to bulge outward. As seen in
Claims
1. A device that can be attached to the base of a container comprising:
- a hollow cup with an upper and lower portion; wherein said upper portion is open and said lower portion is closed; one or more flexible tabs positioned along the circumference of said top portion; one or more slits vertically dividing said tabs, wherein each said tab is permitted to flex inward or outward in an independent manner.
2. A device as recited in claim 1, wherein the said lower portion of said cup has one or more steps situated at the inside corner base of said cup.
3. A device as recited in claim 2, wherein the centrally located space of said lower portion between said steps provides a second open cavity that is lower and narrower than the upper cavity.
4. A device as recited in claim 3, wherein said tabs flex inward towards the center of the said cup.
5. A device as recited in claim 4, wherein combination with a bottle, said tabs exhort force onto the outside of the wall of said bottle.
6. A device as recited in claim 5, wherein said tabs grasp and place said bottle in a position relative to the center of the said cup.
7. A device as recited in claim 6, wherein said bottle is a plastic bottle.
8. A device as recited in claim 6, wherein said bottle is a trigger sprayer bottle.
9. A device that can be attached to the base of a container comprising:
- a hollow container with an upper and lower portion, wherein said upper portion is open and said lower portion is closed; one or more flexible tabs positioned along the perimeter of said container; one or more slits vertically dividing said tabs, wherein each said tab is permitted to flex inward or outward in an independent manner.
10. A device as recited in claim 9, wherein the said lower portion of said container has one or more steps situated at the inside corner base of said container.
11. A device as recited in claim 10, wherein the centrally located space of said lower portion between said steps provides a second open cavity that is lower and narrower than the upper cavity.
12. A device as recited in claim 11, wherein said tabs flex inward towards the center of the said container.
13. A device as recited in claim 12, wherein combination with a bottle, said tabs exhort force onto the outside of the wall of said bottle.
14. A device as recited in claim 13, wherein said tabs grasp and place said bottle in a position relative to the center of the said container.
15. A device as recited in claim 14, wherein said bottle is a plastic bottle.
16. A device as recited in claim 14, wherein said bottle is a trigger sprayer bottle.
Type: Application
Filed: Oct 19, 2004
Publication Date: Jun 2, 2005
Inventor: Mario de la Guardia (Plantation, FL)
Application Number: 10/968,640