Servo control system for a reciprocating piston respirator
US4617637A · kind A · utility
198Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1985 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Jul 9, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20828
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A control system for moving a piston in a reciprocating piston respirator which utilizes predictive servo control techniques. Present invention uses nonlinear time domain analysis rather than linear frequency domain analysis to produce a predictive servo control system for precisely controlling the movement of a piston in a reciprocating piston respirator. A plurality of flow profiles can be produced using stored factor tables. Current pressure and position information are used in the predictive servo control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.