US 12,264,086 B2
Filter for water-purification device and water-purification device including the same
Suhye Woo, Seoul (KR); Sangduck Lee, Seoul (KR); Yuseung Choi, Seoul (KR); and Uison Hwang, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Sep. 1, 2023, as Appl. No. 18/241,558.
Application 18/241,558 is a continuation of application No. 17/241,799, filed on Apr. 27, 2021, granted, now 11,780,748.
Claims priority of application No. 10-2020-0053930 (KR), filed on May 6, 2020.
Prior Publication US 2023/0406727 A1, Dec. 21, 2023
Int. Cl. C02F 1/28 (2023.01); B01J 20/02 (2006.01); B01J 20/04 (2006.01); B01J 20/06 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 45/00 (2006.01); C02F 1/00 (2023.01); C02F 1/42 (2023.01); C02F 101/10 (2006.01); C02F 101/12 (2006.01); C02F 101/20 (2006.01); C02F 101/22 (2006.01)
CPC C02F 1/288 (2013.01) [B01J 20/0211 (2013.01); B01J 20/041 (2013.01); B01J 20/06 (2013.01); B01J 20/28026 (2013.01); B01J 20/28042 (2013.01); B01J 20/2805 (2013.01); B01J 20/3007 (2013.01); B01J 20/3035 (2013.01); B01J 20/3042 (2013.01); B01J 45/00 (2013.01); C02F 1/003 (2013.01); C02F 1/281 (2013.01); C02F 1/283 (2013.01); C02F 1/42 (2013.01); C02F 2001/422 (2013.01); C02F 2101/103 (2013.01); C02F 2101/12 (2013.01); C02F 2101/203 (2013.01); C02F 2101/206 (2013.01); C02F 2101/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A filter device of a water-purification apparatus, comprising:
a pre-filter including a first carbon block, the first carbon block having a hollow tube shape;
a fiber membrane filter configured to receive water from the pre-filter; and
wherein the first carbon block comprises 40 to 50% by weight of titanium dioxide, 30 to 40% by weight of activated carbon, and 18 to 23% by weight of a binder.