System for management of mechanical stress in nitinol components
US9714460B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 22, 2015 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-limiting shaped memory alloy device, including a shape memory alloy member, with first and second ends, a first anchor member connected to the first end, an energy contact, a second anchor member connected to the energy contact, an energy source connected in energetic communication to the energy contact, a moveable member connected to the second end, and a biasing member operationally connected to the moveable member for urging the moveable member towards and into physical contact with the second anchor member. The moveable member is in physical contact with the second anchor member and the second end is in energetic communication with the energy contact. Actuation of the energy source energizes the energy contact. Energization of the shape memory alloy member initiates a phase change that urges the moveable member away from the second anchor member. Movement of the moveable member away from the second anchor member disengages the second end from the energy contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.