Patent ID: 7279045
Filing Date: 2007-10-09
Classification: B05B,D02G,D06B

Abstract:
1. An apparatus for wetting an advancing filament bundle, comprising a spray box which includes an inlet and an outlet for guiding the advance of a filament bundle therethrough, a nozzle mounted within the spray box in spaced relation to the advancing filament bundle, with the nozzle being connected to a source of fluid and located to direct a fluid spray jet toward the filament bundle, a shielding member arranged in the spray box between the nozzle and the advancing filament bundle, such that the fluid spray jet produced by the nozzle is partially shielded and impacts only in part upon the filament bundle, an actuator for performing a movement of the shielding member relative to the nozzle, or for performing a movement of the nozzle relative to the shielding member, and a control unit connected to the actuator for controlling the movement performed by the actuator and thus controlling the amount of the fluid applied to the filament bundle, and a sensor for sensing the speed of advance of the filament bundle, with said sensor being coupled to the control unit, and with said control unit being configured to signal the actuator as a function of the sensed speed so that the actuator maintains a substantially constant application of fluid to the filament bundle at varying speeds.