D - Textiles – Paper – 06 – M
Patent
D - Textiles, Paper
06
M
D06M 23/00 (2006.01) C03C 25/12 (2006.01) C03C 25/20 (2006.01)
Patent
CA 2052026
ABSTRACT The instant invention presents both an apparatus and method for redirecting the flow of entrained air surrounding a fan of rapidly moving glass filaments or fibers away from the vicinity of an applicator surface carrying a liquid used to coat the fibers. In particular, the instant invention accomplishes this by providing at least one pair of aerodynamic stripping and deflecting surfaces to strip entrained air away from the front and rear of the fan and deflect the air away from the surface of the applicator so as to reduce turbulence in its vicinity and thereby allow the moving filaments to be coated more uniformly with a liquid binder or size solution. In the preferred embodiment, air removed from one side of the fan is redirected through it in order to remove any residual air that was not removed by the initial action of the aerodynamic stripping and deflecting surfaces. In an alternative embodiment, the flow of air through the fan is augmented by injecting a second stream of air to enhance the removal of this residual air from the fan.
Borden Ladner Gervais Llp
Ppg Industries Inc.
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