Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Reexamination Certificate
2002-02-25
2003-12-09
Hopkins, Robert A. (Department: 1724)
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
C055S413000, C055S459100, C055SDIG003
Reexamination Certificate
active
06660053
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cyclone dust collecting apparatus for a vacuum cleaner, and more particularly to a grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner used for preventing dust from being drawn into a vacuum-generating device.
2. Description of the Related Art
FIG. 1
shows a conventional cyclone dust collecting apparatus for a vacuum cleaner. According to
FIG. 1
, the conventional cyclone dust collecting apparatus
10
for a vacuum cleaner comprises a cyclone body
20
and a dust-collecting portion
30
.
An air suction passage
21
connected with a brush assembly (not shown) of the vacuum cleaner is disposed at an upper part of the cyclone body
20
. An air drawn through the air suction passage
21
flows into a tangential direction of the cyclone body
20
and forms a whirling air current.
An air discharge passage
22
connected with a vacuum-generating device (not shown) of the vacuum cleaner is disposed at an upper central part of the cyclone body
20
. In order to prevent dust from being drawn into the vacuum-generating device, a grill
23
is disposed at an inlet of the air discharge passage
22
.
The grill
23
has a plurality of passages
24
formed therein. When the vacuum-generating device of the vacuum cleaner operates, the air containing all kinds of filth that exists on a cleaning surface is drawn into the cyclone body
20
through the brush assembly and the air suction passage
21
.
The air drawn into the cyclone body
20
forms a whirling air current, and the dust included in the air is separated by centrifugal force and collected in the dust-collecting portion
30
. Then, the air flows to the vacuum-generating device through the passages
24
of the grill
23
and the air discharge passage
22
.
On the other hand, some of the filth that has not been separated from the air passes through the grill
23
via the passages
24
of the grill
23
, and flows to the vacuum-generating device through the air discharge passage
22
and deteriorates dust-collecting function of the vacuum cleaner. Thus, there is a need for an improved vacuum cleaner grill assembly to avoid this problem.
SUMMARY OF THE INVENTION
The present invention relates to a grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner that is capable of improving dust collecting function of the vacuum cleaner by preventing dust from being drawn to the vacuum-generating device after passing through a grill.
The grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner according to the present invention is disposed at an upper part of an air discharge passage of a cyclone body for separating dust from a whirling air current by centrifugal force. The whirling air current is formed from drawn air, and the grill assembly prevents dust from being drawn to a vacuum-generating device of the vacuum cleaner. The grill assembly comprises a grill body having a plurality of passages formed therein and filtering means disposed along an interior wall of the grill body for filtering dust drawn into the grill body through the passages.
In addition, the grill body has a plurality of passages formed therein, and a cylindrical form that has openings at both ends. In addition, a sealing member removably connected with the grill body is provided for sealing one open end of the grill body. In order to filter dust drawn into the grill body through the passages, filtering means is disposed along an interior wall of the grill body.
In a preferred embodiment of the present invention, the filtering means comprises a filter support portion integrally formed with the sealing member and a filter attached at the filter support portion.
REFERENCES:
patent: 1702804 (1929-02-01), Winslow
patent: 2071975 (1937-02-01), Holm-Hansen et al.
patent: 2942691 (1960-06-01), Dillon
patent: 6042628 (2000-03-01), Nishikiori et al.
patent: 6269518 (2001-08-01), Yung
patent: 29709879 (1997-08-01), None
patent: 657375 (1951-09-01), None
patent: 1214730 (1968-12-01), None
patent: 2264444 (1993-09-01), None
patent: 2298598 (1996-09-01), None
patent: 2375980 (2002-12-01), None
patent: 2376197 (2002-12-01), None
patent: 2001 121040 (2001-05-01), None
Oh Jang-keun
Park Jung-seon
Hopkins Robert A.
Samsung Gwangju Electronics Co. Ltd.
LandOfFree
Grill assembly of cyclone dust collecting apparatus for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Grill assembly of cyclone dust collecting apparatus for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grill assembly of cyclone dust collecting apparatus for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3182364