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:
Apr. 25, 1995
Filed:
Dec. 01, 1993
Applicant:
Inventors:
William K Leonard, River Falls, WI (US);
Stephen W Mohn, St. Paul, MN (US);
P Daniel Schiller, Maplewood, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 10 ; 118665 ; 118119 ; 118126 ; 427-9 ; 427359 ;
Abstract
A method for regulating the thickness of an applied coating. The method includes passing a web through two members which define a gap between them. A sensor measures periodic variations in the thickness of the coating on the web. An automatic controller analyzes information from the sensor and converts the information into gap adjusting signals. Piezoelectric or magnetostrictive translators adjust the size of the gap to compensate for repeating variations in coating thickness.