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US 2016/0271535 A1Published application
Filter assembly
AssigneesJoung Whi Dong, Microfilter Co., Ltd.
InventorsJoung Whi Dong, Jaeik Lee, Pilkang Hwang
Life of this patent
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Abstract
Disclosed herein is a filter assembly, and more particularly, to a filter assembly in which an uneven portion is formed on an inner wall of a hollow external housing and a filter fastening unit which includes a pressurized section pressurized by the uneven portion is formed around an inner cap which moves up and down along an inner surface of the external housing to firmly fasten a filter.
Claims11
A filter assembly comprising:
- a hollow external housing which comprises an inlet and an outlet and a plurality of uneven portions circularly arranged at certain intervals are formed on an inner wall of an open bottom;
- an inner cap which is formed in a cylindrical shape with an open bottom corresponding to an internal hollow shape of the external housing and moves up and down along the inner wall of the external housing;
- a filter which comprises a head portion inserted into the bottom of the inner cap and forms a fitting groove on a side of the head portion;
- an elastic member which is disposed between an upper portion of the inner wall of the external housing and an upper portion of an outer surface of the inner cap and has a repulsive force which acts when the head portion of the filter receives a force from a top in the inner cap;
- and
- a filter fastening unit which comprises a plurality of pressurized sections disposed on a lower circumference of the inner cap corresponding to the plurality of the uneven portions, in which when the filter is inserted into the inner cap, the plurality of pressurized sections are pressurized by the plurality of uneven portions formed on the inner wall of the external housing and steps formed at ends while protruding inside the plurality of pressurized sections are fixed to the fitting groove of the filter.
3 more elements
A filter assembly comprising:
- a hollow external housing which comprises an inlet and an outlet, a plurality of uneven portions circularly arranged at certain intervals are formed on an inner wall of an open bottom, and a detachment preventing protrusion is formed on an inner edge of an entrance of the open bottom;
- an inner cap which is formed in a cylindrical shape with an open bottom corresponding to an internal hollow shape of the external housing, comprises a plurality of pressurized sections integrally formed on a lower circumference thereof corresponding to the plurality of uneven portions, and moves up and down along the inner wall of the external housing;
- a filter which comprises a head portion inserted into the bottom of the inner cap and forms a fitting groove on a side of the head portion;
- and
- an elastic member which is disposed between an upper portion of the inner wall of the external housing and an upper portion of an outer surface of the inner cap and has a repulsive force which acts when the head portion of the filter receives a force from a top in the inner cap,
- wherein when the filter is inserted into the inner cap, the plurality of pressurized sections are pressurized by the plurality of uneven portions formed on the inner wall of the external housing and steps formed at ends while protruding inside the plurality of pressurized sections are fixed to the fitting groove of the filter, and
- wherein when the filter is externally separated from the inner cap, supporting portions formed at ends of the plurality of pressurized sections while protruding outward are held by the detachment preventing portion and prevent the inner cap from being externally detached.
4 more elements
Dependencies are inferred from the claim text.