Patent ID: 7066337

Claim:
A reusable filter port assembly installed on the wall of a bag, the assembly comprising: a grommet having a base plate and a grommet opening defined by a neck extending from the base plate, the neck passing through the wall of the bag with the base plate contacting the wall of the bag at an inside surface of the bag, the neck having an interior neck surface lining the grommet opening and an exterior neck surface which is threaded; a locking collar contacting an outer surface of the bag, the locking collar having an inner collar surface and an outer collar surface, the inner collar surface being threaded for engaging the threaded exterior neck surface of the grommet and drawing the locking collar into close contact with the base plate proximate the neck to form a grommet-collar combination having a first end distal from the base plate of the combination and a second end at the base plate of the combination; a filter cap removably attached to the collar outer surface of the grommet-collar combination, the filter cap having a top and an aperture through a portion of the top and a means for attaching the filter cap to the grommet-collar combination to cover the grommet opening proximate the first end of the grommet-collar combination; and a filter receptacle on the filter cap proximate a perimeter of the aperture for mounting a filter to cover the aperture.