Patents Assigned to John R. Wells
  • Automatic multiple-decanting centrifuge
    Patent number: 5707331
    Abstract: A centrifuge is capable of holding a sample container in selected orientations, either during or after centrifugation, to drain supernatants between two or more chambers of the container. The draining may be gravity or centrifugal draining. This allows an automated process to subject a sample to a first physical or chemical treatment to produce a first supernatant, the first supernatant to be subjected to a second physical or chemical treatment, and a second supernatant to be separated from a desired component.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: January 13, 1998
    Assignee: John R. Wells
    Inventors: John R. Wells, Steven M. Gann