Dust collector for vacuum device

Details Dust collector for vacuum device Dust collector for vacuum device

2007-04-10

2007-04-10

Hopkins, Robert (Department: 1724)

Gas separation

With means facilitating transportability or handling of...

C055S422000, C055S492000

Reexamination Certificate

active

10896226

ABSTRACT:
A dust collector includes a base, a cover, and a barrel disposed between the base and the cover. The barrel includes a lower frame, an upper frame, one or more intermediate frames, and one or more telescopic tubes selectively secured to the frames, to form a spatial structure for the barrel, and the barrel is collapsible to a collapsed structure when the telescopic tube is disengaged from the lower and the upper and the intermediate frames. The intermediate frames may be received within the upper frame, and the lower frame may be received in the intermediate frames. The dust bag may be attached to the barrel with hooks or catches or clamping rings.

REFERENCES:
patent: 3358316 (1967-12-01), Okun
patent: 3747307 (1973-07-01), Peshina et al.
patent: 5623744 (1997-04-01), Triplett et al.
patent: 5813085 (1998-09-01), Fritz et al.

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