US 12,441,650 B2
Method and system for obtaining cut elongated elements
André Witzmann, Waldershof (DE); and Ulla Trinks, Mitterteich (DE)
Assigned to Schott AG, Mainz (DE)
Filed by Schott AG, Mainz (DE)
Filed on Sep. 6, 2022, as Appl. No. 17/903,587.
Claims priority of application No. 21197615 (EP), filed on Sep. 20, 2021.
Prior Publication US 2023/0089514 A1, Mar. 23, 2023
Int. Cl. C03B 37/16 (2006.01)
CPC C03B 37/16 (2013.01) [Y10T 428/131 (2015.01); Y10T 428/1314 (2015.01)] 19 Claims
OG exemplary drawing
 
1. A bundle, comprising:
five or more cut elongated glass elements, each cut elongated glass element comprising:
a first end;
a cylindrical portion; and
a second end;
wherein at least one of the following equations is fulfilled:
(Icenter(max)−Icenter(min))/Icenter(mean)≤4.0×10−2 [μm/μm];  i) or
(Icontinuous(max)−Icontinuous(min))/Icenter(mean)≤4.0×10−2 [μm/μm];  ii)
wherein Icenter(max) is a maximum center inner diameter of the cylindrical portions of all cut elongated glass elements in the bundle;
wherein Icenter(min) is a minimum center inner diameter of the cylindrical portion of all cut elongated glass elements in the bundle;
wherein Icenter(mean) is a mean of inner diameters at a center of the cylindrical portions of all cut elongated glass elements in the bundle;
wherein Icontinuous(max) is a maximum continuous inner diameter of the cylindrical portion of any single cut elongated glass element in the bundle; and
wherein Icontinuous(min) is a minimum continuous inner diameter of the cylindrical portion of the single cut elongated glass element in the bundle, wherein the following equation is fulfilled: c≤(Icontinuous(max)−Icontinuous(min))/Icenter(mean); wherein c in μm/μm is 1.0×10−6.