Title: Closure system for containers

Abstract: A closure system is provided for a threaded container. A threaded closure cap has an annular skirt which engages a resilient gasket that is stretched over the bottle neck. The resilient gasket overlies a cap support flange which extends from the neck. Downward axial movement of the cap with respect to the container provides a vertical compressive force against the resilient gasket by the cap skirt. A heat shrinkable outer member surrounds the closure cap and provides a tamperproof seal with respect to the container.

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Inventors: Winchell, David A. (Twin Lakes, WI, US)
Fowles, Thomas A. (McHenry, IL, US)

Application Number: 912670
Filing Date: 1978-06-05
Publication_date: 1979-12-11
Assignee: Baxter Travenol Laboratories, Inc. (Deerfield, IL)
Primary Class(es): 215/246 215/329, 215/341
Other Classes:
US Patent Ref:

2311983	Feb, 1943	Gora	215/352.
2339702	Jan, 1944	Isele	215/354.
3227302	Jan, 1966	Merrill	215/352.
3480169	Nov, 1969	Hammes	215/354.
3615714	Oct, 1971	Nelson	215/252.
4000824	Jan, 1977	Han	215/246.

Other Refs:
Primary Examiner: Hart, Ro E.
Assistant Examiner:
Attorney: Flattery; Paul C., Kirby, Jr.; John P., Gerstman; George