Filter element for disc-type filter
US4116842A · kind A · utility
7Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Oct 17, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtering apparatus comprises a housing defining a generally closed chamber in which is provided a hollow rotatable shaft that carries a plurality of filter elements. Each of these elements is formed as an upwardly dished fluid-impervious metal plate formed with a central hole through which the hollow shaft passes and having a concave upper face formed with an array of spaced-apart bosses. A fluid-pervious filter cloth lies on the plate directly against the bosses so as to be spaced from the plate between the bosses. A ring secured to the smooth edge of each plate secures the respective filter cloth in place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.