Two-way actuator and method
US8104505B2 · kind B2 · utility
2Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Jul 29, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86485
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a two-way actuator. The actuator includes, a tubular, movably positionable within a structure between at least a first position and a second position, the tubular having a first density selected such that buoyancy forces urge the tubular toward the first position in response to submersion of the tubular within a fluid having a second density that is greater than the first density, and at least one flow resistor disposed at the tubular configured to urge the tubular toward the second position in response to fluid flow interacting with the at least one flow resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.