US 2011/0073459 A1Published application

Rotary evaporator

AssigneeEcodyst, Inc.

InventorGeorge M. Adjabeng

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Abstract

A rotary evaporator comprising a motor, a rotary joint movably inserted to a motor rotor of the motor by a sleeve in an axial direction, a collection flask attached to the rotary joint at one end of the joint, with a condenser attached to the other end of the joint. The condenser is adapted to receive a cooling coil from an immersion cooler. The cooling coil is attached to the base unit of the immersion cooler via an insulated hose. The rotary evaporator is adapted to provide various ways to remove heat from the flask in the water bath, whether by mechanically lowering the water bath, dropping fluid from the bath into an underlying reservoir, or raising and lowering the rotary evaporator out of the bath. Where the rotary evaporator is raised and lowered, the immersion cooler can remain in place if the hose connecting the base unit to the cooling coil is sufficiently long, or the condenser includes a flexible portion that accommodates the upward and downward movement.

Claims15

Dependent claims

A rotary evaporator, comprising:

a) a motor having a motor main body and a rotary means;
b) a rotary joint insertedly supported and movable in an axial direction relative to said rotary means, with an area of the insertion formed in a straight shape;
c) a sample container connected to one end of said rotary joint;
d) a water bath in which the sample container can be placed, which water bath can provide heat energy to the sample container,
e) a condenser located adjacent the other end portion of said rotary joint and mounted on said motor main body;
wherein the condenser is adapted to receive a collection flask that receives condensed vapors condensed off of the condenser, and the condenser is also adapted to receive a cooling coil of an immersion cooler;
f) an immersion cooler with a cooling coil adapted to engage the condenser so as to provide the condenser with the ability to cool and condense vapors coming into contact with the condenser,
g) a plurality of bushes slidably mounted in a space between said rotary means and said rotary joint;
h) at least one elastically deformable O ring disposed between said bushes;
i) a fastening means for pressuring said bushes against said rotary means, and
j) a motor adapted to raise and lower the water bath relative to the sample container.

8 more elements

A rotary evaporator, comprising:

a) a motor having a motor main body and a rotary means;
b) a rotary joint insertedly supported and movable in an axial direction relative to said rotary means, with an area of the insertion formed in a straight shape;
c) a sample container connected to one end of said rotary joint;
d) a water bath in which the sample container can be placed, which water bath can provide heat energy to the sample container,
e) a condenser located adjacent to the other end portion of said rotary joint and mounted on said motor main body;
wherein the condenser is adapted to receive a collection flask that receives condensed vapors condensed off of the condenser, and the condenser is also adapted to receive a cooling coil of an immersion cooler;
f) an immersion cooler with a cooling coil adapted to engage the condenser so as to provide the condenser with the ability to cool and condense vapors coming into contact with the condenser,
g) a plurality of bushes slidably mounted in a space between said rotary means and said rotary joint;
h) at least one elastically deformable O ring disposed between said bushes;
and
i) a fastening means for pressuring said bushes against said rotary means, wherein
the water bath includes a reservoir below the bath which reservoir is adapted to have the ability to add heated fluid to the bath to warm the sample container, and remove the heated fluid to cool the sample container.

9 more elements

A rotary evaporator, comprising:

a) a motor having a motor main body and a rotary means;
b) a rotary joint insertedly supported and movable in an axial direction relative to said rotary means, with an area of the insertion formed in a straight shape;
c) a sample container connected to one end of said rotary joint;
d) a water bath in which the sample container can be placed, which water bath can provide heat energy to the sample container,
e) a condenser located adjacent the other end portion of said rotary joint and mounted on said motor main body;
wherein the condenser is adapted to receive a collection flask that receives condensed vapors condensed off of the condenser, and the condenser is also adapted to receive a cooling coil of an immersion cooler;
f) an immersion cooler with a cooling coil adapted to engage the condenser so as to provide the condenser with the ability to cool and condense vapors coming into contact with the condenser,
g) a plurality of bushes slidably mounted in a space between said rotary means and said rotary joint;
h) at least one elastically deformable O ring disposed between said bushes;
and
i) a fastening means for pressuring said bushes against said rotary means, wherein
the condenser comprises a flexible lower portion, such that a portion of the condenser moves when the collecting flask moves, and an upper portion that bears the cooling coil and stays in a fixed position.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/888,259Filed 22 Sep 2010
Priority: 25 Sep 2009
Published: 31 Mar 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B01D 1/0052
Use of fluids: use of a liquid transfer medium or intermediate fluid, e.g. bain-marie
B01D 1/228
In rotating vessels; vessels with movable parts: horizontally placed cylindrical container or drum
B01D 3/085
In rotating vessels; Atomisation on rotating discs: using a rotary evaporator
B01D 3/10
Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping: vacuum distillation