Apparatus for removing liquid and residue from a web of film
US4783947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | Mar 25, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B55/103
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for removing liquid and residue from a web of film is provided. The apparatus includes an exhaust tube having an inlet and an outlet, the web of film passing through the exhaust tube from the inlet through the outlet, the exhaust tube being under a negative pressure. Two air knives are located above the outlet of the exhaust tube, one air knife being located on a first side of the film and second air knife being located on a second side of the film, the air knives include a plurality of holes for directing a gas for removing the liquid and residue onto the web of film. The exhaust tube cooperates with the air knives to capture a portion of the removed liquid and residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.