Slide gate valve at the nozzle of a vessel containing molten metal
US4848604A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1988 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Feb 3, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The slide gate valve (20) has a damper unit (30) that can be adjusted by a drive unit and that can be moved to a position (A) lying outside of the closed position. In this position (A), the damper unit (30) is swingably held in a bearing (29) and guideways (21c) are lowered by a height (h) which releases the spring means (50) with respect to guideways (21a) along the remaining panel length. In this way, this damper unit can be swung out of the housing (24) in very simple fashion for the replacement of the eroded plates (22, 32), which is required very frequently and, after replacement of the plates, can be brought in the operating state again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.