Patents Assigned to AAF McQuay
  • Filter layer comparative testing method and apparatus
    Patent number: 6327893
    Abstract: A filter media testing arrangement and method including a flow-through test tower composed of a preselected number of clamped modular rings capable of supporting test samples in adjacent or spaced position therein so as to comparatively measure and control pressure drop and particulate separation characteristics of test sample media.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: December 11, 2001
    Assignee: AAF McQuay
    Inventor: Kyung-Ju Choi