Dust filter bag for a vacuum cleaner

Details Dust filter bag for a vacuum cleaner Dust filter bag for a vacuum cleaner

1993-10-27

1995-11-21

Bushey, C. Scott

Gas separation

With means facilitating transportability or handling of...

Handle feature for apparatus or part thereof

55367, 55377, B01D 4600

Patent

active

054682711

ABSTRACT:
A dust filter bag for a vacuum cleaner, having a holding plate (1) of a cardboard paper material, which holding plate (1) has a sealing-closable opening (9) for a suction pipe of a vacuum cleaner, the opening (9) being adapted to be closed from the outside by a separate closure tab (10) which has an insertion region, and, in order to obtain an improved dust filter bag, the cardboard-paper material is developed in three layers (layers a, b, c) in the region of the opening (9) and in at least two layers in the remaining region of the holding plate (1), a rubber gasket (11) being gripped between two layers, preferably the second and third layers (b, c).

REFERENCES:
patent: 3417550 (1968-12-01), Fesco
patent: 3803815 (1974-04-01), Anderson et al.
patent: 3933451 (1976-01-01), Johansson
patent: 4861357 (1989-08-01), Gavin et al.
patent: 5039324 (1991-08-01), Goldberg
patent: 5045099 (1991-09-01), Goldberg
patent: 5226941 (1993-07-01), Uibel et al.
patent: 5230724 (1993-07-01), Marafante et al.

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