Drainage element comprising an insert
US9834888B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 14, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/523
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a drainage element (1) from plastic and a process for its production, which features at least one opening (3), in which an insert (2) is placed, whereas insert (2) features a harder surface than drainage element (1), whereas insert (2) features at least one locking projection (2h) with locking surface (2c) at is outer circumference, and drainage element (1) in opening (3) features at least one latching surface (1c), which is formed via a recess in the girthed area of opening (3) and insert (2) can be pressed into surface (3), whereas locking surface (2c) of locking projection (2h) of insert (2) enjoins the latching surface (1c) in placed conditions, so that insert (2) is positively secured against pulling out in opening (3) of drainage element (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.