Title:
A SYSTEM FOR CONTROLLING THE FLOW RATE OF A FLUID
Document Type and Number:
WIPO Patent Application WO2003027553
Kind Code:
A3
Abstract:
The present invention relates to a system that automatically increases or decreases flow in tubes when exposed to temperature variations and to a tube that automatically stops fluid from flowing when exposed to heat. The system comprises a plurality of members at least one of the members being an element arranged inside a tube, thus definig a longitudinally extending flow channel between the element and the tube. The element and the tube have different thermomechanical properties, so that the cross-sectional-area of the flow channel varies when the system is exposed to temperature variations.
Inventors:
ENGHOLM MARTIN PETER (DK)
Application Number:
PCT/DK2002/000759
Publication Date:
March 25, 2004
Filing Date:
November 14, 2002
Export Citation:
Assignee:
RIGSHOSPITALET (DK)
ENGHOLM MARTIN PETER (DK)
ENGHOLM MARTIN PETER (DK)
International Classes:
A61M39/00; G05D7/01; G05D23/02; (IPC1-7): G05D7/01
Domestic Patent References:
| WO2001095696A2 | 2001-12-20 |
Foreign References:
| DE2060495A1 | 1972-06-08 | |||
| DE19825882A1 | 1998-12-17 | |||
| US3536103A | 1970-10-27 | |||
| US4125221A | 1978-11-14 | |||
| US3017903A | 1962-01-23 | |||
| US3513881A | 1970-05-26 |
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