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.

Date of Patent:
Dec. 14, 1982

Filed:

Mar. 24, 1981
Applicant:
Inventor:

Cornelis Blaak, Boxmeer, NL;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B41L / ; B05C / ;
U.S. Cl.
CPC ...
427211 ; 101119 ; 101120 ; 118123 ; 118124 ; 118406 ; 427358 ; 427359 ; 427365 ; 427428 ; 427356 ;
Abstract

Coating a porous substratum with a viscous substance is performed by means of a rotatable cylindrical sieve (plain-mesh screen), comprising an internal squeegee for pressing said substance through the perforations of the screen. The substratum are passed in contact with the screen and is supported at the contact zone by a roller. Although the peripheral speeds of the screen and the substratum is substantially equal, the rotational speed of the support roller is such, that its peripheral speed is either smaller or greater than that of the substratum to an extent of at least 5%. This avoids the occurrence of the phenomenon of pinhole formation in the coated substratum.


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