Electro-magnetically operated valve devices
US4907779A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1989 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Jul 6, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve device has a multi-part housing containing a servo-valve with a stem which is axially displaced to operate the valve and an electromagnet with a rod-like armature which is axially displaced when the electromagnet is energized. A pivotable lever translates the axial movement of the armature to the stem. For adjustment purpose, an adjustment member is in screw-threaded engagement with the lever remote from the stem. The armature is locked for rotation with the adjustment member. A regulator at the opposite end of the armature to the lever and accessible from the exterior serves to enable the armature to be partially rotated for effecting the adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.