Title: Apparatus for continuously coating a web with a liquid

Abstract: A chamber having an opening in its wall contains a roller. A portion of the surface of the roller is situated in the opening. A web is continuously moved past the chamber so as to cover the opening. A vacuum is created in the chamber. The external pressure forces the web into contact with the roller. A coating liquid is supplied into the chamber so as to wet the roller. The roller is rotated so that the coating liquid is transferred to the web.

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Inventors: Johansson, Erik V. (Saffle, SE)
Kullander, Mats O. (Saffle, SE)

Application Number: 814728
Filing Date: 1977-07-11
Publication_date: 1979-01-30
Assignee: Billeruds Aktiebolag (Saffle, SE)
Primary Class(es): 118/50 118/261
Other Classes:
US Patent Ref:

1213728	Jan, 1917	Beach	118/235.
2141978	Dec, 1938	Greenhill	118/50.
2354033	Jul, 1944	McGladrey et al.	118/50.
2470093	May, 1949	Crowder et al.	118/261.
3461837	Aug, 1969	Dreher	118/50.
3474757	Oct, 1969	Dreher	118/411.
3827397	Aug, 1974	Hebberling et al.	118/50.
3940782	Feb, 1976	Neeb et al.	118/261.

Other Refs: 15777671577769

Jun, 1969	DE
Jun, 1969	DE

Primary Examiner: McIntosh, John
Assistant Examiner:
Attorney: Burns, Doane, Swecker & Mathis