Self-centering control rod
US7887032B2 · kind B2 · utility
83Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2008 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Mar 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2158
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Embodiments include a self-centering control rod device having two independently operating springs, a bushing, and a control rod. The two springs utilize preload compression to maintain the control rod centered. One spring operates directly against the control rod while the other operates against the bushing. Each spring may have different spring strength or established preload in order to balance out the application force required to control a particular object. Spring compression force adjustments on one spring do not affect the center point or the spring compression force adjustment of the other spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.