Dust buster filter for a vacuum cleaner

Details Dust buster filter for a vacuum cleaner Dust buster filter for a vacuum cleaner

1989-06-02

1991-09-10

Nozick, Bernard

Gas separation

Flexible or collapsible bag type

Seaming, reinforcing or bag structure

55486, B01D 4600

Patent

active

050470752

ABSTRACT:
A dust buster filter for a vacuum cleaner made up of three layers of unwoven cloth having their circumfertical edges fused together with plastic rings by means of a super-sonic fusing machine and a dirt entrance joined with the upper layer of unwoven cloth with glue. The dirt entrance is provided with four protrusions fitting into glued with four holes in the upper layer of unwoven cloth.

REFERENCES:
patent: 3410060 (1968-11-01), Reilly
patent: 4116648 (1978-09-01), Busch
patent: 4274847 (1981-06-01), Crenez

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