Patents Assigned to Abo, Inc.
  • Method for detecting microorganism activity
    Patent number: 5051360
    Abstract: Gas-generating or absorbing activity of microorganisms is detected by providing a vessel in which the microorganisms are incubated, the vessel having a cap with a membrane indicator therein. The membrane has a deformed region which is inflated to indicate the existence of a change in pressure within the vessel as compared with ambient pressure. Automatic monitoring of the inflated portion is disclosed.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: September 24, 1991
    Assignee: Abo, Inc.
    Inventor: John R. Waters