Patent ID: 6610148
Filing Date: 2003-08-26
Classification: B05C,G03C,Y10S

Abstract:
A catch pan apparatus for starting and stopping a curtain coating operation where a free-falling liquid curtain from a curtain forming apparatus is impinged upon a moving substrate to coat the moving substrate, the catch pan apparatus comprising:(a) an inclined intercepting pan segment from which liquid impinging thereon flows over a first end thereof by gravity to a drain; (b) a horizontal intercepting member affixed to a second end of the inclined intercepting pan segment, the horizontal intercepting member extending toward the first end to create a capturing chamber between the horizontal intercepting member and the inclined intercepting pan segment, the horizontal intercepting member also extending away from the first end to terminate in a release edge that is parallel to the free-falling curtain; and (c) means for driving the inclined intercepting pan segment into and out of a position of interception of the free-falling curtain before the free-falling curtain impinges on the moving substrate, the capturing chamber preventing any liquid on the inclined intercepting pan segment from flowing therefrom onto the moving substrate when the inclined intercepting pan segment is driven out of the position of interception, the horizontal intercepting member intercepting the free-falling curtain until the release edge thereof passes through the free-falling curtain thereby allowing the free-falling curtain to impinge upon the moving substrate.