A device and method for separating heavier and lighter fractions of a fluid sample. The device includes a plurality of constituents comprising a container and a composite element in the container. The composite element is a separator comprising a deformable bellows, a ballast mounted to the lower end...http://www.google.fr/patents/US6803022?utm_source=gb-gplus-shareBrevet US6803022 - Device and method for separating components of a fluid sample
Device and method for separating components of a fluid sample
