The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2006
Filed:
Dec. 12, 2002
Markus Gueggi, Marly, CH;
Sedat Varli, Reichenburg, CH;
Markus Gueggi, Marly, CH;
Sedat Varli, Reichenburg, CH;
Dow Global Technologies Inc., Midland, MI (US);
Abstract
An apparatus for curtain coating, particularly for high-speed curtain coating of a continuous paper web substrate () is provided with a hopper means () providing one or more liquid coating materials in the form of a free-falling curtain () impinging the substrate () at a dynamic wetting line. Edge guide elements () are arranged on both sides supplying a wetting or auxiliary liquid. Each guide element () has at least one contact area of its surface directed towards said curtain, which contact area has a multiplicity of grooves () and ribs () extending along the length of said edge guide elements ().