Variable force actuator with a double needle poppet assembly
US6871668B2 · kind B2 · utility
10Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Jan 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86686
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A variable force actuator with a double needle poppet assembly includes a housing in which a first poppet and a second poppet are slidably disposed. The second poppet fits within the first poppet, and both poppets move when a nearby coil is energized to establish, in combination, a fluid flow configuration in response to the amount of energy applied to the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.