Patent ID: 6994785
Filing Date: 2006-02-07
Classification: B01D

Abstract:
1. A fine filter screen assembly comprising: a length of filter screen extending in a longitudinal direction and having a relatively fine filtering surface and terminating at opposite ends with opposed end shafts, the length of filter screen being formed by a plurality of screen segments each screen segment formed by a plurality of parallel articulated link members, the link members being supported at their opposite ends on transverse shafts, the link members being spaced apart so as to form a filter; generally open connecting means for connecting the opposed end shafts to define a continuous loop structure while maintaining a generally open area between the opposed end shafts; at least one removable filter grid supported in the open area between the opposed end shafts and having a substantially fine filtering surface and configured to be removably mounted between the opposed end shafts such that the continuous loop has a substantially continuous, relatively fine filtering surface.