Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Reexamination Certificate
2005-01-11
2005-01-11
Hopkins, Robert A. (Department: 1724)
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
C055S349000, C055S459100, C055S481000, C055S503000, C055SDIG003, C096S416000
Reexamination Certificate
active
06840972
ABSTRACT:
The disclosure is directed to a cyclone dust collector for separating air from dusts by way of a centrifugal force and, more particularly, to a novel canister type vacuum cleaner capable of using a dual cyclone dust collector with maximized allowable dust capacity. The entire structure of the vacuum cleaner as suggested herein is configured for the user's simple manipulation in discarding various foreign matters collected in the vacuum cleaner, thereby improving reliability to the user.
REFERENCES:
patent: 5135552 (1992-08-01), Weistra
patent: 6484350 (2002-11-01), Yung
Hopkins Robert A.
LG Electronics Inc.
McKenna Long & Aldridge LLP
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