Suck back valve with linear actuator and encoder arrangement
US6000629A · kind A · utility
17Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Mar 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6579
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A suck back valve comprises a linear actuator which displaces a second diaphragm through a stem, an encoder which detects a displacement amount of the linear actuator, and a flow amount controller for controlling a pilot pressure supplied to an ON/OFF valve mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.