Patent ID: 6119595
Filing Date: 2000-09-19
Classification: B41F

Abstract:
Apparatus for distributing fluid on a surface of a rotating transfer roll comprising:a housing having a fluid supply inlet and an inner surface;an upper doctor blade assembly extending from an upper side of said housing, said upper doctor blade assembly having an upper blade support connected to said housing and an upper doctor blade positioned for contact with said surface of said transfer roll at a trailing angle at a first location;a lower doctor blade assembly extending from a lower side of said housing, said lower doctor blade assembly having a lower blade support connected to said housing and a lower doctor blade positioned for contact with said surface of said transfer roll at a trailing angle at a second location; andend seal assemblies disposed at opposite ends of said housing and extending between said upper and lower doctor blade assemblies, said inner surface of said housing, said upper doctor blade, said lower doctor blade and said end seal assemblies defining only one fluid application chamber;wherein said upper doctor blade and said lower doctor blade contact said transfer roll such that the first location and the second location are spaced around a circumference of the transfer roll to define two angles, the smaller of which is at least about 150 degrees.