Papermachine deckle means
US4968387A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1990 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Jan 23, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/56
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The lateral edges of a papermachine forming fabric pond are contained by a deckle board having a bottom edge positioned above the forming fabric upper surface elements but below the fabric supported stock pond surface. Lateral edges of the forming fabric run under the deckle board and upon an edge support beam within an elongated fluid channel between the outside surfaces of the deckle board structure and the inside surfaces of the edge support beam. Fluid flow within the elongated fluid channel, preferably independent of the papermachine headbox slice opening, supplies the elongated fluid channel volume for a fluid barrier to pond stock loss under the deckle board bottom edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.