公开(公告)号：US20120234731A1

公开(公告)日：2012-09-20

申请号：US13051528

申请日：2011-03-18

Applicant: FRED C. SENFTLEBER

Inventor： FRED C. SENFTLEBER

IPC: B04B5/10 ,  B03B7/00 ,  B03C1/30

CPC classification number: B03C1/288 ,  B03C1/30 ,  B03C5/026 ,  B03C2201/18 ,  B04B5/0442 ,  B04B2005/045 ,  G01N30/0005 ,  G01N2030/002

Abstract: Apparatuses and methods are described for the discrimination of particles using sedimentation field-flow fractionation operating without the use of rotating seals. Multiple lines of fluid and electrical communication are provided through a centrifugation unit comprising a fishhook-shaped umbilical conduit traveling from a stationary frame through a rotating guide frame to the separation channel. Twisting and tangling of the umbilical conduit enclosed communication lines are prevented by rotating the guide frame and separation channel in the same direction about an axis at an angular velocity ratio of 1:2. The design eliminates maintenance problems associated with rotating seals, simplifies channel installation and adjustment, and enables the use of multiple channels and the simultaneous application of multiple modes of field-flow fractionation either in concert or in a two-dimensional format. The design also enables the injector and/or detector to be mounted contiguously with the separation channel on the centrifugal rotor.

Abstract translation: 描述了用于使用不使用旋转密封件的沉降场流分级操作来区分颗粒的装置和方法。 通过离心单元提供多条流体和电连通线，该离心单元包括从静止框架通过旋转引导框架移动到分离通道的鱼钩形脐带管。 通过使引导框架和分离通道以相对于轴线的相同方向以1：2的角速度比旋转来防止脐带管封闭通信线路的扭转和缠结。 该设计消除了与旋转密封件相关的维护问题，简化了通道安装和调整，并且可以使用多个通道，并且可以一致地或二维格式同时应用多种场流分级。 该设计还使得喷射器和/或检测器能够与离心转子上的分离通道连续地安装。