Back to results
US 4,889,071 AGranted
Upstreams inclined doctor blade
AssigneeOy Wartsila Ab
InventorYngve Fundell
Life of this patent
Estimating the term…
Abstract
An arrangement for the coating of a running cardboard, paper or the like web (1) by coating paste, whereby an excess amount of the supplied paste is removed and the supplied coating layer is levelled by means of a scraper knife (6) separately arranged after the coating position in the running direction of the web (1). The scraper knife (6) is arranged upstream, inclined relative to the running web (1) so, that the web (1) meets the knife (6) in an angle, which exceeds 90.degree., preferably considerably exceeds 90.degree..
Claims6
An arrangement for coating a running web of cardboard, paper, or like material with coating paste, comprising:
- means defining a path of movement for the web,
- a scraper knife support member, and
- a scraper knife supported by the scraper knife support member and projecting towards said path of movement, the scraper knife being arranged so that it is inclined upstream relative to the path of movement of the web and the web meets the knife at an angle greater than 90.degree., the scraper knife being flexible and having a tip region that engages the web and is disposed substantially parallel to the running direction of the web.
Dependencies are inferred from the claim text.