Torque balance servo including electromagnetic force bias mechanism
US7971851B2 · kind B2 · utility
3Cited by
21References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2008 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Feb 23, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque balance servo is provided for use in conjunction with a fluidly-controlled device. The torque balance servo includes a pivoting table assembly and an electromagnetic force bias mechanism. The pivoting table assembly includes: (i) a pivoting table configured to pivot about a rotational axis, and (ii) a roller assembly mechanically coupled to the fluidly-controlled device and contacting a surface of the pivoting table. The electromagnetic force bias mechanism is disposed proximate the pivoting table assembly and configured to exert a variable torsional force about the rotational axis of the pivoting table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.