Shape memory polymer conduits and methods of use

Details Shape memory polymer conduits and methods of use Shape memory polymer conduits and methods of use

2005-02-28

2009-10-27

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Tube compressors

C251S129010, C251S129060, C138S046000

Reexamination Certificate

active

07607634

ABSTRACT:
A method comprises applying a thermal activation signal to a conduit comprising a shape memory polymer, causing a change in at least one property of the shape memory polymer, and regulating fluid flow through the conduit by the change in the at least one property of the shape memory polymer. A conduit comprises a shape memory polymer in an amount effective to regulate fluid flow through the conduit by a change in at least one property of the shape memory polymer caused by application of a thermal activation signal. The conduits and methods disclosed herein may find use as drinking utensils, respirator tubes, pump intake tubes, motor vehicle cooling system bypass hoses, motor vehicle engine oil filter bypass hoses, or motor vehicle powertrain fluid circulation hoses.

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