Shape memory alloy actuators
US7658709B2 · kind B2 · utility
21Cited by
30References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Jan 26, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/0304
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A shape memory alloy (SMA) actuator includes a groove formed in a surface of a shape memory alloy (SMA) substrate establishing a trace pattern for a layer of conductive material formed over an electrically insulative layer. The trace pattern includes a first end, a second end, and a heating element disposed between the first and second ends. The SMA substrate is trained to deform at a transition temperature achieved when electricity is conducted through the conductive material via first and second interconnect pads terminating the first and second ends of the trace pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.