Opening and closing valve
US6092782A · kind A · utility
11Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1998 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Jun 22, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K23/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A opening and closing valve comprises ROM in which a plurality of valve-closing program control patterns are stored in order to avoid liquid drip when the valve is closed. The valve further comprises a control unit for controlling a valve plug lift position in a direction to close the valve by controlling an amount of electric power application to a linear voice coil type driving unit in accordance with the valve-closing program control pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.