Cleanable filter and method of cleaning same
US4257901A · kind A · utility
14Cited by
22References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Aug 13, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/397
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A filter assembly for an extrusion apparatus comprises a stationary filter having a flat, hard surface and slidable means having a plurality of apertures for both accumulating filtered debris and cleaning the filter surface when the debris is removed by sliding a clogged slide aperture out of position while replacing it with a clean aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.