Sealed container with replaceable plug insert
AssigneeAutomatic Liquid Packaging, Inc.
InventorsGerhard H. Weiler, Louis T. Pagels
Life of this patent
Estimating the term…
Abstract
A hermetically sealed container formed from thermoplastic material is provided with a hollow body having an open end terminating in a tapered wall defining a sealing region about an opening with a decreasing cross-sectional area in the direction toward the interior of the hollow body. A hollow plug insert is provided in the opening and has a peripheral sealing surface generally complementary with the defined sealing region. Over the opening is a closure structure that is unitary with the hollow body, that encloses the plug insert, and that retains the plug insert in the opening. A severable frangible web joins the closure structure to the hollow body outwardly of the opening.
Claims13
A hermetically sealed container formed from thermoplastic material comprising:
- a hollow body having an open end terminating in a tapered wall defining a sealing region about an opening with a decreasing cross-sectional area in the direction toward the interior of said hollow body;
- a hollow plug insert in said opening, said plug insert having a peripheral sealing surface generally complementary with the defined sealing region, said plug insert being positioned to effect a fluid-tight seal for said hollow body;
- a closure structure over said opening, unitary with said hollow body, enclosing said plug insert, and retaining said plug insert in said opening;
- and
- a severable frangible web joining said closure structure to said hollow body outwardly of said opening.
A hermetically sealed thermoplastic container comprising:
- a hollow body portion open at one end;
- a neck portion about said open end, unitary with said hollow body portion, and defining a passageway tapered toward the hollow body portion and having an internal, peripheral sealing region;
- a hollow plug received within said neck portion and matingly engaging said peripheral sealing region to seal said hollow body portion;
- and
- a cap enveloping said plug, defining a cavity between said cap and said plug, and holding said plug in place against said peripheral sealing region;
- said cap being unitary with said neck portion and with said body portion and being delineated by a peripheral frangible web that circumscribes the neck portion on the cap side of the plug.
Dependencies are inferred from the claim text.