Washable cloth vacuum cleaner filter bag having a resealable opening for emptying vacuumed debris

A vacuum cleaner filter bag for use with an associated vacuum cleaner system having a debris collection tank in which, during operation of the system, air pressure is reduced below ambient atmospheric pressure so that debris may be suctioned from outside the tank through an inlet into the tank, said inlet terminating as a tubular member inside the tank, said vacuum cleaner filter bag comprising:

• a cloth bag having a first opening securable to the tubular member, and a second opening for removing accumulated debris, said second opening being formed by a pair of generally parallel, neighboring first and second unseamed-together edges of mutually-facing expanses of cloth, said second opening extending the entire length of said first and second edges, said first edge incorporating a cuff which, when not turned inside out, faces away from said second edge and incorporates a first sealing strip along its entire length, said second edge incorporating a second sealing strip along its entire length that is generally positioned back-to-back with respect to said first sealing strip, such that when said cuff is turned inside out, it overlaps said first edge with said first and second sealing strips being in intimate sealing contact with one another.