Power-efficient actuator assemblies and methods of manufacture
US9027903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2011 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jun 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Power-efficient actuator apparatus and methods. In one exemplary embodiment, the actuator assembly utilizes a shape memory alloy (SMA) filament driven by an electronic power source to induce movement in the underlying assembly to actuate a load (e.g., water valve). In addition, a circuit board is included which allows the actuator assembly to be readily incorporated or retrofit into a wide range of systems such that the signal characteristics of the supply line can, among other applications, be conditioned in order to protect the SMA filament. Furthermore, the circuit board can also readily be adapted for use with “green” power sources such as photovoltaic systems and the like. Methods for manufacturing and utilizing the aforementioned actuator assembly are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.