Patent ID: 9057130
Filing Date: 2015-06-16
Classification: C23C

Abstract:
1. Transport roller for transporting planar substrates through a vacuum treatment system, comprising a roll body extending along a central longitudinal axis and having a cylindrical exterior surface, the roll body including a groove, the groove having a base spaced inwardly of the cylindrical exterior surface of the roll body and the groove surrounding an entire circumference of the roll body, and at least one spacer element arranged on the roll body and enveloping the roll body, wherein the at least one spacer element comprises a knitted tube containing metallic or/and ceramic threads elastically held on the roll body, wherein the at least one spacer element comprises at least one rolled up section of the knitted tube, the at least one rolled up section being arranged in the groove and having an exterior diameter greater than an exterior diameter of the cylindrical exterior surface of the roll body, and the at least one rolled up section in the groove having a spiral cross-section in a plane extending along said longitudinal axis.