Patents Assigned to Nicholson Precision Instruments Inc.
  • Vacuum clamped multi-sample filtration apparatus
    Patent number: 5227137
    Abstract: An apparatus for filtering multiple biological samples using a filter membrane is disclosed. The apparatus comprises a base plate, a well plate, a gasket, and a first vacuum member for vacuum-clamping the base plate, well plate, gasket and filter membrane together. The apparatus may further comprise a second vacuum member for drawing the biological samples from the well plate into contact with the filter membrane.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: July 13, 1993
    Assignee: Nicholson Precision Instruments Inc.
    Inventors: Patricia C. Monti, Richard J. White, Michael K. Nicholson