Grid with conical support skirt
US4863699A · kind A · utility
Inventors
Key dates
| Filing date | Feb 5, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Feb 5, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00884
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In brief, a grid plate, especially a flat grid plate, horizontally disposed in a fluidized solids contacting vessel, is supported by a conical skirt that extends downwardly and inwardly from substantially the outer periphery of the grid plate for a predetermined portion of the length of the skirt and then downwardly to the bottom of the vessel. Preferably, the conical skirt extends inwardly at an angle, .alpha., measured from the vertical in the range of about 20 degrees to about 45 degrees, and preferably about 30 degrees, for a distance equal to about one third to one half of the length of the skirt, and generally for a distance of about half the length of the skirt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.