Collapsible support cage for vacuum cleaner filter

Details Collapsible support cage for vacuum cleaner filter Collapsible support cage for vacuum cleaner filter

1984-12-28

1986-09-02

Hart, Charles

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

55379, 55493, 55508, 55DIG3, B01D 4602

Patent

active

046093877

ABSTRACT:
A by-pass type wet/dry vacuum cleaner includes a dirt accumulating tank that is free-standing on one end thereof and open at the other end. A removable lid provided to close the other end mounts an inner cage that supports a primary filter cuff and also mounts an outer cage that prevents a primary filter blanket from being drawn into contact with the secondary filter and thereby substantially block air flow through the latter. The outer cage is constructed of two U-shaped formed spring wire element that are pivotably mounted to the inner surface of the lid so as to be movable between erected and collapsed positions without utilizing tools and without dismounting either element from the lid. Cooperating detent formations on the elements maintains them in their erected positions.

REFERENCES:
patent: 2349043 (1944-05-01), Hyland
patent: 3740933 (1973-06-01), Hollowell
patent: 4413800 (1983-11-01), Kelson
patent: 4435877 (1984-03-01), Berfield

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