Kühlein
Daniel Kühlein, Quickborn DE
Patent application number | Description | Published |
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20150152871 | Method and Pump Arrangement for Evacuating a Chamber - A method for evacuating a chamber employs a pump arrangement composed of a booster pump and of a downstream forepump is connected to the chamber. The booster pump is accelerated, gas from the chamber is introduced into the booster pump, such that from the booster pump there is temporarily extracted an excess power which exceeds the power provided by the drive of the booster pump. The gas is discharged through a bypass valve while the outlet pressure of the booster pump lies above a predefined threshold value, and the gas is directed to the forepump when the outlet pressure of the booster pump has fallen below the threshold value. The gas supplied by the booster pump is compressed by means of the forepump. | 06-04-2015 |
Georg Kühlein, Roslau DE
Patent application number | Description | Published |
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20100042066 | METHOD OF PRODUCING A MEDICAL FLUID CONTAINER FROM FLEXIBLE PLASTIC MATERIAL, FILM TUBING AS INTERMEDIATE PRODUCT FOR A FLUID CONTAINER OF THIS TYPE AND MEDICAL CONTAINER PRODUCED ACCORDING TO A METHOD OF THIS TYPE - A medical fluid container of a flexible plastic material is produced as follows: at first, a plastic compound is produced from a heterogeneous mixture of a first, lower-viscosity raw polymer component having a first melt viscosity and a second, higher-viscosity raw polymer component having a second melt viscosity which is greater than the first melt viscosity. Then the plastic compound is extruded. The extrudate is confectioned. Finally, the confectioned extrudate is sealed to form the finished fluid container. A film tubing may serve as intermediate product for the medical container. The medical container or the film tubing thus produced has surface structures with a typical average size of 15 to 200 μm. The production method requires little effort while fulfilling demanding requirements with respect to the stability of the produced fluid container. | 02-18-2010 |
Georg Kühlein, Roslau DE
Patent application number | Description | Published |
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20100042066 | METHOD OF PRODUCING A MEDICAL FLUID CONTAINER FROM FLEXIBLE PLASTIC MATERIAL, FILM TUBING AS INTERMEDIATE PRODUCT FOR A FLUID CONTAINER OF THIS TYPE AND MEDICAL CONTAINER PRODUCED ACCORDING TO A METHOD OF THIS TYPE - A medical fluid container of a flexible plastic material is produced as follows: at first, a plastic compound is produced from a heterogeneous mixture of a first, lower-viscosity raw polymer component having a first melt viscosity and a second, higher-viscosity raw polymer component having a second melt viscosity which is greater than the first melt viscosity. Then the plastic compound is extruded. The extrudate is confectioned. Finally, the confectioned extrudate is sealed to form the finished fluid container. A film tubing may serve as intermediate product for the medical container. The medical container or the film tubing thus produced has surface structures with a typical average size of 15 to 200 μm. The production method requires little effort while fulfilling demanding requirements with respect to the stability of the produced fluid container. | 02-18-2010 |