Claims
- 1. A plastic closure for a container, comprising:a plug having a planar top wall portion, and an annular skirt portion depending from the top wall portion, the top wall portion having a central aperture therein; a valve adapter received within the central aperture of the plug, the valve adapter having a central passageway therethrough; a valve stem having a top end and a bottom end, the valve stem being adapted to be received by and retained within the central passageway of the valve adapter; and an inflatable bladder secured to the bottom end of the valve stem, such that the bladder may be inflated through the valve stem when the valve stem is assembled within the closure.
- 2. The plastic closure as described in claim 1, further comprising an over cap that is removably secured to the top end of the valve stem.
- 3. The plastic closure as described in claim 1, wherein the annular skirt portion of the plug has external threads thereon for the threaded attachment to the container.
- 4. The plastic closure as described in claim 1, wherein the valve adapter has a top portion and a bottom portion, the top portion of the valve adapter having an internal thread configuration for the threaded attachment to the valve stem.
- 5. The plastic closure as described in claim 4, further comprising a nipple protruding from the top end of the valve stem, the nipple have an external thread configuration thereon.
- 6. A plastic closure for a container, comprising:a plug having a planar top wall portion having a central aperture therein, and an annular skirt portion depending from the top wall portion, the annular skirt portion having external threads thereon; a valve adapter having a top portion, a bottom portion, and a central passageway therethrough, the top portion of the valve adapter having an internal thread configuration, and the valve adapter being received within the central aperture of the plug; a valve stem having a top end, a bottom end, and a nipple extension protruding from the top end of the valve stem, the nipple extension having an external thread configuration thereon, the valve stem being adapted to be received by and retained within the central passageway of the valve adapter; and an inflatable bladder secured to the bottom end of the valve stem, such that the bladder may be inflated through the valve stem when the valve stem is assembled within the closure.
- 7. The plastic closure as described in claim 6, further comprising an over cap that is removably secured to the top end of the valve stem.
RELATED APPLICATIONS
This application claims priority from U.S. Provisional Application No. 60/140,222 filed on Jun. 22, 1999.
Field of the Invention
This invention relates to closures for a container and, in particular, for a closure incorporating a valve stem for inflating a bladder positioned within the container behind the closure to provide added support to the container lid.
US Referenced Citations (8)
Provisional Applications (1)
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Number |
Date |
Country |
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60/140222 |
Jun 1999 |
US |