Apparatus and methods for a shape memory spring actuator and display
US6705868B1 · kind B1 · utility
40Cited by
26References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1998 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Mar 18, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B21/004
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Various apparatus and methods for an actuator and display using one more shape memory springs. A shape memory spring is heated and urges a pin to a first or extended position. The pin may be supported in the first position by a supporting mechanism. The shape memory spring is heated electically, and in some embodiments under the control of a processor. The present invention may be used to display information provided in user interface from a computer program, including text, numerical data, and graphical images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.