Multi-purpose valve
US6705585B1 · kind B1 · utility
20Cited by
7References
4Claims
0Family size
Inventor
Key dates
| Filing date | Oct 24, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Oct 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S251/902
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-purpose valve includes, a band of a thermodynamic metal alloy with shape memory, with a memorised shape and a transition temperature which lies in the range for the normal body temperature of a mammal. The strip has a linear shape below the transition temperature and assumes the memorised shape above the transition temperature. The memorised shape is preferably a conical spiral with a closed tip, with the result that above the transition temperature range the valve will become a conical spiral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.