US 12,276,042 B2
Crystal support and crystal growing plant having such a crystal support
Hans-Juergen Ahlborn, Buseck (DE)
Assigned to PVA TePla AG, Wettenberg (DE)
Appl. No. 17/791,633
Filed by PVA TePla AG, Wettenberg (DE)
PCT Filed Jan. 11, 2021, PCT No. PCT/DE2021/200000
§ 371(c)(1), (2) Date Jul. 8, 2022,
PCT Pub. No. WO2021/139857, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 10 2020 100 331.5 (DE), filed on Jan. 9, 2020.
Prior Publication US 2023/0040130 A1, Feb. 9, 2023
Int. Cl. C30B 15/32 (2006.01); C30B 15/30 (2006.01)
CPC C30B 15/32 (2013.01) [C30B 15/30 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A crystal support for a crystal pulling system, comprising:
two catches, wherein the two catches are each foldable about a respective pivot axis and wherein the two catches each have a respective retaining jaw that is placeable against a thickened neck portion of a crystal to be pulled;
wherein the two catches are moveable into a bearing position in which the two catches bear on the thickened neck portion and into a releasing position in which the two catches are away from the thickened neck portion and wherein, in the bearing position, respective contact points of each retaining jaw at which the retaining jaws bear on the thickened neck portion are located on respective sides of a parting plane; and
wherein the parting plane extends at an angle to at least one of the pivot axes and wherein, in the bearing position, the respective contact points of each retaining jaw are located on both sides of a crystal plane that extends through an axis of the crystal and parallel to one of the pivot axes.