Static mixer with precision cast elements
US6769801B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Dec 14, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The static mixer contains precision cast elements (1) which are arranged along a central axis (10) and which in each case have a reinforcement region (4) at their circumference which extends over the entire circumference. These cast elements (1) are assembled with intermediate elements (2) to form a cylindrical body. Joint locations between the elements (1, 2) form surfaces (40a, 40b, 20a, 20b) which stand transversely to the central axis. For each isolated cast element, in a rotation about its central axis the joint locations are accessible to machining tools for a subsequent machining—in particular for a grinding or turning. As a result of the subsequent machining a predetermined total length (L) of the mixer in the direction of the central axis can be precisely achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.