Shaker mechanism for vacuum cleaner filter bag

Gas separation – Combined or convertible

Reexamination Certificate

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Details

C055S300000, C055S304000, C055SDIG030, C055SDIG007, C055S356000, C055S357000, C015S347000, C015S352000

Reexamination Certificate

active

07485167

ABSTRACT:
A manually moveable filter shaker for a drum-style vacuum cleaner with a drum lid and a filter bag mounted below the drum lid. The filter shaker includes a shaker handle operable from outside of the drum lid and extending through an elastically deformable pressure-tight through-hole in the drum lid and into the filter bag having a contoured bottom. The shaker handle extends to the bottom of the filter bag. Guide template control the manual movement of the shaker handles such that the shaker handle shakes the filter bag loosening accumulated debris.

REFERENCES:
patent: 946535 (1910-01-01), Craver
patent: 2232574 (1941-02-01), Veevers
patent: 4868949 (1989-09-01), Loveless
patent: 5259087 (1993-11-01), Loveless
patent: 5704956 (1998-01-01), Loveless
patent: 7282074 (2007-10-01), Witter
patent: 2 219 524 (1989-12-01), None
International Search Report from the European Patent Office dated Dec. 7, 2005.

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