Patent · US Expired

Device for applying a thin coat on the surface of a screen of a cathode-ray tube

US6494952B1 · kind B1 · utility

3Cited by

6References

26Claims

0Family size

Assignee

ACR Automation in Cleanroom GmbH · DE

Inventors

Roland Mann · Stuttgart, DE
Wolfgang Schmutz · Rottweil, DE
Josef Gentischer · Winnenden, DE

Key dates

Filing date	Aug 1, 2000
Grant date	Dec 17, 2002
Priority date	—
Expiry date	Aug 1, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05C11/08
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

An apparatus for applying a thin film of a liquid coating medium onto a curved surface of an article includes a receptacle for the article, a rotatably drivable turntable on which the receptacle is held and a nonrotatable process pot surrounding the receptacle and the turntable. A spray ring surrounds the surface to be coated and is retained at the open end of the process pot. It defines a central inflow opening. Several annular gaps are defined and the receptacle is provided with a suction cone. A laminar flow is aimed at the spray ring at the top of the process pot and the bottom of the process pot is joined to a suction flow.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.