Patent ID: 9090412
Filing Date: 2015-07-28
Classification: B65G,C03B,G01N

Abstract:
1. A method of characterizing moving glass sheets comprising: moving a glass sheet in a first direction along a predetermined path past a circular air bearing, the glass sheet comprising a pair of opposing major surfaces and a bottom edge; dampening movement of the glass sheet in a second direction perpendicular to the first direction by passing the glass sheet between at least two stabilizing air knives positioned adjacent the opposing major surfaces of the glass sheet as the glass sheet is moving past the circular air bearing; engaging the glass sheet with the circular air bearing, the circular air bearing comprising an inner porous body portion and an outer porous body portion disposed about the inner porous body portion, the inner porous body portion and the outer porous body portion positioned adjacent at least a portion of one of the pair of opposing major surfaces as the glass sheet is moving past the circular air bearing, the inner porous body portion defining a central passage therethrough; and measuring at least one attribute of the glass sheet through the central passage as the glass sheet is moving past the circular air bearing.