Vacuum cleaner dust bag

Details Vacuum cleaner dust bag Vacuum cleaner dust bag

1979-09-06

1981-06-23

Prunner, Kathleen J.

Gas separation

Flexible or collapsible bag type

With flow line coupling means

55378, 55381, 55DIG2, 229 625, B01D 4602

Patent

active

042748470

ABSTRACT:
A vacuum cleaner dust bag with a relatively rigid collar having an inlet opening for an inlet tube connected to a vacuum cleaner housing. The opening is covered by an apertured elastic diaphragm. The opening of the dust bag is further provided with a large zone and a small zone, which are integral, so that the inlet tube can be inserted through the large zone and the dust bag displaced laterally so that a peripheral flange on the inlet tube will engage with surrounding portions of the diaphragm aperture disposed in the small zone. The dust bag is moved to and retained in this position by the elastic diaphragm whose aperture is disposed centrally relative to said small zone.

REFERENCES:
patent: 2868321 (1959-01-01), Kelly
patent: 3137023 (1964-06-01), Klinge et al.
patent: 3150405 (1964-09-01), Tissler
patent: 3675399 (1972-07-01), Westergren

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