Closure inserting method
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United States of America Patent
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Jul 13, 1982
Issued Date -
N/A
app pub date -
May 8, 1980
filing date -
Mar 4, 1976
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The disclosure is of a novel closure for air evacuated tubular containers and comprises a tubular body having flexible, elastic sidewalls, an open end, a closed end formed by a cannula-pierceable, flexible, elastic end wall having a concavo-convex configuration in cross-section and a flange disposed radially about the periphery of the open end. The novel closure structure takes advantage of the vacuum force in the container to maintain a gas-proof, hermetic seal, reduces the thickness required of the closure to maintain the hermetic seal and is easier to assemble in an air evacuated container. The disclosure is also of a novel method of assembling the closure of the invention in an air evacuated tubular container.
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