Novel fluid application processes and apparatus wherein fluid extruded through a nozzle is wiped off the nozzle at various angles of attack by periodically forcing a moving sheet, web, or other article against the nozzle in a controlled manner as the same moves past the nozzle, thus to produce predetermined...http://www.google.es/patents/US4020194?utm_source=gb-gplus-sharePatente US4020194 - Process for discontinuous coating of a web by periodic deflection thereof against a fluid coating
Process for discontinuous coating of a web by periodic deflection thereof ...