Valve unit capable of monitoring output pressure
US6675830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87885
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A pressure control apparatus which controls a pressure of air supplied from a supply hole of a base having a plurality of holes to a supply port of a valve having a plurality of ports is interposed between the base and the valve. This pressure control apparatus comprises a pressure control section which controls a pressure of the air such that the pressure becomes equal to a set pressure, a booster section which outputs a large amount of air to the valve by controlling an output pressure by air from this pressure control section, and a signal control section which outputs a monitor signal indicative of completion of pressure setting when the pressure of air output from the booster section becomes equal to the set pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.