Rotary evaporator
AssigneeHans Heidolph GmbH
InventorJoachim Carl
Life of this patent
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Abstract
The invention relates to a rotary evaporator comprising a rotary drive having a hub and a clamping insert with a sleeve-like basic shape, in particular a clamping sleeve, 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, wherein 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 tapering toward the first end and of which the clamping arrangement arranged closer to the second end has a larger maximum outer cross-section.
Claims20
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.
A clamping insert having a sleeve-like base form for the clamping of a steam leadthrough formed as a hollow glass shaft in a hub of a rotary drive of a rotary evaporator, having a longitudinal axis and having a first and 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 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 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.
Dependencies are inferred from the claim text.