Title:
FILTER
Document Type and Number:
WIPO Patent Application WO/2022/124484
Kind Code:
A1
Abstract:
The present invention relates to a filter. The filter according to an embodiment of the present invention may comprise: an upper body filled with a filter medium therein; a lower body which is disposed at the lower side of the upper body, and an upper part and a lower part of which are open; and a separation prevention part which is disposed in the lower body, allows sludge and fluid to be introduced into the lower body, and prevents the sludge from escaping out of the lower body, wherein the separation prevention part comprises: a support plate fixed inside the lower body and having a through-hole formed through the center thereof; a central pipe connected to the upper part of the support plate, having a lower hole communicating with the through-hole, and having at least one connection hole formed at one side thereof; and a backflow prevention ball which moves inside the central pipe to selectively open or close the lower hole, so as to prevent the fluid from flowing backward.
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Inventors:
PARK CHUL HEE (KR)
KIM SU KYUNG (KR)
KIM SU KYUNG (KR)
Application Number:
PCT/KR2021/003523
Publication Date:
June 16, 2022
Filing Date:
March 22, 2021
Export Citation:
Assignee:
QUAKOREA CO LTD (KR)
International Classes:
A01K63/04; B01D35/153; B01D35/30
Foreign References:
| KR870003400Y1 | 1987-10-15 | |||
| KR20180131455A | 2018-12-10 | |||
| KR100983352B1 | 2010-09-20 | |||
| JP2006125575A | 2006-05-18 | |||
| US10822248B1 | 2020-11-03 |
Attorney, Agent or Firm:
OH, Young Jin (KR)
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