Vacuum cleaner filter

Details Vacuum cleaner filter Vacuum cleaner filter

1986-05-23

1987-06-02

Hart, Charles

Gas separation

Flexible or collapsible bag type

Closure means other than coupler to flow line for filter or...

55380, 55DIG2, B01D 4602

Patent

active

046700307

ABSTRACT:
A double walled vacuum cleaner filter having a reusable inner bag with a zippered opening for debris removal.

REFERENCES:
patent: 1914370 (1933-06-01), Hutchison
patent: 4084948 (1978-04-01), MacFarland
patent: 4116648 (1978-09-01), Busch

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