Device with co-extruded body and flexible inner bladder and related apparatus and method
AssigneeDr. Py Institute LLC
InventorDaniel Py
Life of this patent
Estimating the term…
Abstract
A device comprises a first portion including a first polymer, and a second portion that is relatively flexible in comparison to the first portion and includes a second polymer that is substantially not bondable to the first polymer. A chamber of the device is hermetically sealable with respect to ambient atmosphere and is defined by (i) an interior of the second portion, and/or (ii) a space formed between the first and second portions. A third portion of the device includes a third polymer that is bondable to the first and second polymers and fixedly secures the first and second portions to each other.
Claims55
A device comprising:
- a first portion including a first polymer;
- a second portion that is relatively flexible in comparison to the first portion including a second polymer that is substantially not bondable to the first polymer, and a chamber that is hermetically sealable with respect to ambient atmosphere and defined by at least one of (i) an interior of the second portion, and (ii) a space formed between the first and second portions;
- and
- a third portion including a third polymer that is bondable to the first and second polymers and that fixedly secures the first and second portions to each other.
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A device comprising:
- first means for forming an outer surface of the device and including a first polymer;
- second means including a second polymer that is substantially not bondable to the first polymer for forming a relatively flexible inner surface of the device in comparison to the first means and a chamber that is hermetically sealable with respect to ambient atmosphere and defined by at least one of (i) an interior of the second means, and (ii) a space formed between the first and second means;
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- third means including a third polymer that is bondable to the first and second polymers for fixedly securing the first and second means to each other.
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A method comprising the following steps:
- extruding a first portion of a device including a first polymer;
- co-extruding with the first portion a second portion of the device that is relatively flexible in comparison to the first portion and includes a second polymer that is substantially not bondable to the first polymer;
- co-extruding a third portion of the device including a third polymer that is bondable to the first and second polymers;
- and
- bonding the third portion to the first and second portions and fixedly securing the first and second portions to the third portion, and forming a chamber that is hermetically sealable with respect to ambient atmosphere defined by at least one of (i) an interior of the second portion, and (ii) a space formed between the first and second portions.
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Dependencies are inferred from the claim text.