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:
Jul. 23, 1996
Filed:
Aug. 24, 1993
Leroy H Busker, Rockton, IL (US);
Beloit Technologies, Inc., Wilmington, DE (US);
Abstract
A short dwell coater apparatus is disclosed for applying coating material to a web supported by a backing member. The apparatus includes a housing which defines an application zone having an upstream and a downstream end. The application zone extends in a cross-machine direction across the web and is connected to a source of the coating material such that the coating material is applied to the web during movement of the web past the application zone. An elongate pipe is disposed within the application zone and extends in a cross-machine direction across the application zone. The pipe defines at least one orifice for the passage therethrough of the coating material. The pipe is connected to the source of coating material such that the coating material flows through the pipe and through the orifice for supplying coating material to the application zone. A vane is rigidly secured to the pipe and extends in a machine direction away from the pipe towards the web such that coating material supplied through the orifice generates a hydrodynamic wedge between the vane and the web for reducing entrained air vortices within the application zone. A metering blade is disposed adjacent to the downstream end of the application zone for metering excess coating from the web.