Patent ID: 8956506
Filing Date: 2015-02-17
Classification: B01D,Y10S

Abstract:
1. A rotary evaporator comprising a rotary drive having a hub and a clamping insert with a sleeve-like basic shape for the clamping of a steam leadthrough formed as a hollow glass shaft in the hub of the rotary drive, wherein the clamping insert has a longitudinal axis and a first and a second axial end, characterized in that the clamping insert has two clamping sections which are arranged spaced apart from one another in the longitudinal direction and which each have an outer cross-section surface tapering toward the first end and of which the clamping section arranged closer to the second end has a larger maximum outer cross-section than the clamping section arranged closer to the first end, wherein the clamping sections extend around the steam leadthrough, wherein said clamping insert is located between the hub and the steam leadthrough, and wherein tapering surfaces on the hub engage said outer cross-section surface on said clamping sections so that axial displacement of said clamping insert relative to the hub in a first direction compresses both ends of said clamping insert radially inwardly against the steam leadthrough.