Patent ID: 7806276
Filing Date: 2010-10-05
Classification: A61M,A61P,B01D,B01L,G01N

Abstract:
1. A buoy suspension fractionation system, comprising: a separation container and an access port through at least a portion of the separation container, the separation container is enclosed by a container wall, a container bottom and a container top; and a buoy in the separation container, the buoy having a tuned density and configured to reach an equilibrium position in a suspension, the buoy comprising a buoy upper surface and a buoy sidewall defining a height, a transverse dimension, and a perimeter, the buoy further comprising: a guide surface on the buoy upper surface inclined in one direction relative to the buoy sidewall for a distance of more than two-thirds the transverse dimension of the buoy; a collection volume above the buoy upper surface defined relative to the guide surface; and an accumulation sump defined by the guide surface and being inclined toward the buoy perimeter.