Frame for flat sifter and process for producing the same
US6202857A · kind A · utility
11Cited by
22References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Oct 1, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a sieve frame for plan sifters and also to a method of producing it. It is used mainly in plan sifters for milling. The object is to improve the functionality of an insertable sieve frame and to simplify production. This object is achieved in that the sieve frame (1) including battens (2) is foamed from polyurethane in one part (and one operation), the sieve cloth (4) also being surrounded by foaming and the sieve frame (1) preferably containing a metal core (3)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.