US 12,078,387 B2
Hot water tank for bidet and bidet device including the same
Minsu Song, Seoul (KR); Hyun Kang Lee, Seoul (KR); Youngpyo Kim, Seoul (KR); Dong Ik Nam, Seoul (KR); Moon Seok Koh, Seoul (KR); and Min Hwan Kim, Seoul (KR)
Assigned to COWAY CO., LTD., Gongju-si (KR)
Appl. No. 17/284,189
Filed by COWAY CO., LTD., Gongju-si (KR)
PCT Filed Sep. 19, 2019, PCT No. PCT/KR2019/012136
§ 371(c)(1), (2) Date Apr. 9, 2021,
PCT Pub. No. WO2020/075983, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 10-2018-0121347 (KR), filed on Oct. 11, 2018.
Prior Publication US 2021/0341178 A1, Nov. 4, 2021
Int. Cl. F24H 1/20 (2022.01); E03D 9/08 (2006.01); F24H 9/20 (2022.01); F24H 15/128 (2022.01); F24H 15/223 (2022.01); F24H 15/25 (2022.01); F24H 15/37 (2022.01); H05B 1/02 (2006.01)
CPC F24H 1/201 (2013.01) [E03D 9/08 (2013.01); F24H 9/20 (2013.01); H05B 1/0213 (2013.01); F24H 15/128 (2022.01); F24H 15/223 (2022.01); F24H 15/25 (2022.01); F24H 15/37 (2022.01)] 5 Claims
OG exemplary drawing
 
1. A hot water tank for a bidet, the hot water tank comprising:
a tank main body in which a space for accommodating water is formed and an inclined surface having a portion of an upper side inclined downward is formed;
a heating unit inserted into and positioned in the tank main body;
a bimetal positioned on the inclined surface;
a fastening member configured to couple the bimetal to the tank main body and being inserted into an inside of the tank main body from an outside of a periphery of the bimetal so that the bimetal is coupled to the tank main body;
a protrusion formed on an inner circumferential surface of an upper part of the tank main body by using the fastening member; and
a bubble preventing portion positioned at a stepped portion formed between the protrusion and the inner circumferential surface of the upper part of the tank main body.