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US 9,573,741 B2Granted
Co-extrusion blow molding apparatus and method, and sealed empty devices
OwnerDaniel Pyinventor
Life of this patent
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Abstract
A device comprising a body including a first polymer and a closure including a second polymer that is substantially not bondable to the first polymer and has a relatively higher shrinkage rate than the first polymer, wherein at least a portion of the closure overlaps at least a portion of the body, forming a hermetic seal therebetween and defining a sealed, empty, sterile container.
Claims32
A device comprising:
- a body including a first polymer and defining a chamber;
- and
- a closure including a second polymer that is substantially not bondable to the first polymer at blow molding conditions for the first polymer and the second polymer and subsequent cooling of the first polymer and the second polymer to ambient temperature such that, after said cooling, the body including the first polymer and the closure including the second polymer are detachable from each other;
- wherein at least one of the first and second polymers exhibits a higher shrinkage rate relative to the other;
- and at least a portion of the closure overlaps at least a portion of the body, forming a hermetic seal therebetween, and defining a sealed, empty, sterile chamber within the body.
2 more elements
A device comprising:
- a body including a first polymer;
- and
- a closure including a second polymer that is substantially not bondable to the first polymer at blow molding conditions for the first polymer and the second polymer and subsequent cooling of the first polymer and the second polymer to ambient temperature such that, after said cooling, the body including the first polymer and the closure including the second polymer are detachable from each other, and said closure defining a penetrable and resealable portion co-extrusion blow molded with the body, wherein the body and the closure cooperate to define a sealed, empty, sterile chamber.
A method comprising the following steps:
- extruding a body including a first polymer;
- co-extruding with the body a closure that includes a second polymer that is substantially not bondable to the first polymer, wherein at least one of the first and second polymers exhibits a higher shrinkage rate relative to the other;
- and
- blow molding the co-extruded body and closure and forming therein an empty, sterile chamber that is sealed with respect to ambient atmosphere.
1 more element
A device comprising:
- a body including a first polymer and defining a chamber;
- and
- a closure including a second polymer that is substantially not bondable to the first polymer;
- wherein one of the first and second polymers exhibits a higher shrinkage rate relative to the other, and at least a portion of the polymer that exhibits said higher shrinkage rate overlaps on the outside of at least a portion of the other polymer to form a hermetic seal therebetween where the first polymer and the second polymer overlap, whereby the body and the closure define a sealed, empty, sterile chamber within the body.
1 more element
Dependencies are inferred from the claim text.