NDLI: United States Patent ( 19 ) Sollinger et al . 54 METHOD AND APPARATUS FOR COATING RUNNINGWEBS 75 ) Inventors :

Content Provider	Semantic Scholar
Author	Sollinger, Hans-Peter
Copyright Year	2017
Abstract	A coating apparatus, for applying a coating substance to a paper web, has a chamber from which the coating substance is supplied via a slit type mouth communicat ing with an applicator space which is defined by the paper web and a doctor blade element. At the web, on the side of the applicator space from where the paper web enters, a throttling passage is formed by a back pressure element in such a manner that a stream of excess coating substance issues from the applicator space via the throttling passage and abruptly separates from the web and in so doing flows away from the web predominantly as a film thereby preventing completely or almost completely the admission of air into the appli cator space by the air boundary layer adjacent the mov ing web.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://patentimages.storage.googleapis.com/eb/90/01/f0a55c6246dffd/US4880671.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Patent

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