Patent ID: 8336482
Filing Date: 2012-12-25
Classification: B05C,D06B

Abstract:
1. A sizing applicator apparatus and sizing system for coating rapidly moving fibers moving at a speed of at least 1000 feet per minute with a liquid sizing, in a fiber forming room containing hot fiberizing bushings having a temperature of over 2000 degrees F or more and one or more fiber choppers, the sizing applicator apparatus and sizing system comprising: a) a fiber coating element having a continuously moving working surface, the applicator being exposed to heat from the hot fiberizing bushings, the applicator having a top cover above, and spaced from the continuously moving working surface and the applicator receiving sizing from a sizing supply tank in the sizing system, b) a filter for filtering the sizing having a capability of removing any foreign material larger than 13 microns prior to the introduction of the sizing onto the moving working surface of the fiber coating element of the sizing applicator, the filter being remote from the fiber forming room in a cooler, temperature controlled, environment, the filter located upstream of the sizing supply tank, c) a distributing element for distributing the filtered sizing across the continuously moving working surface of the fiber coating element, d) a doctor blade or squeegee for removing any unused sizing and foreign objects from the continuously moving working surface, a removing portion of the doctor blade or squeegee located downstream of a location where the continuously moving working surface would contact the fibers for coating, e) a drive for moving the working surface, and f) a basin and pipe for removing unused sizing and foreign items from the sizing applicator and a system transporting the unused sizing and foreign items to the filter.