Gas separation – Residue access – handling or removing means – Separable collection container
Reexamination Certificate
2009-03-19
2011-10-25
Hopkins, Robert A (Department: 1776)
Gas separation
Residue access, handling or removing means
Separable collection container
C055S459100, C055SDIG030
Reexamination Certificate
active
08043397
ABSTRACT:
A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.
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Korean Office Action dated Mar. 18, 201
Choo Jong Su
Ha Gun Ho
Hwang Man Tae
Hyun Kie Tak
Jeong Hoi Kil
Hopkins Robert A
KED & Associates LLP
LG Electronics Inc.
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