Patents Assigned to Membrex Incorporated
  • Small volume rotary filter
    Patent number: 4876013
    Abstract: An improved method and apparatus for filtration includes an outer stationary body, an inner rotating body defining a gap with the outer body for receiving a fluid sample, the surface of one of the bodies defining the gap being a filter. The rotation of the inner body creates Taylor vortices which continuously displace occluded solute on the filter surface. The filter can be a membrane. In one embodiment the device may be used to filter very small volumes of fluid such as are handled in clinical and other laboratories.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: October 24, 1989
    Assignee: Membrex Incorporated
    Inventors: Iosif Shmidt, Mario Badiali
  • Filtration method and apparatus
    Patent number: 4790942
    Abstract: An improved method and apparatus for filtration includes an outer stationary body, an inner rotating body defining a gap with the outer body for receiving a fluid sample, the surface of one of the bodies defining the gap being a filter. The rotation of the inner body creates Taylor vortices which continuously displace occluded solute on the filter surface. The filter can be a membrane.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: December 13, 1988
    Assignee: Membrex Incorporated
    Inventors: Iosif Shmidt, Mario Badiali