US 12,448,801 B2
Water circulation system for a pool and a pool
Shuiyong Huang, Shanghai (CN); Xianglin Zeng, Shanghai (CN); Jiang Xu, Shanghai (CN); and Qingshui Song, Shanghai (CN)
Assigned to BESTWAY INFLATABLES & MATERIAL CORP., Shanghai (CN)
Filed by BESTWAY INFLATABLES & MATERIAL CORP., Shanghai (CN)
Filed on Feb. 13, 2024, as Appl. No. 18/440,655.
Application 18/440,655 is a continuation of application No. 17/628,155, granted, now 11,920,366, previously published as PCT/CN2020/102453, filed on Jul. 16, 2020.
Claims priority of application No. 201910653252.7 (CN), filed on Jul. 19, 2019; application No. 201921138048.3 (CN), filed on Jul. 19, 2019; application No. 201911187017.1 (CN), filed on Nov. 28, 2019; and application No. 201922088453.5 (CN), filed on Nov. 28, 2019.
Prior Publication US 2024/0183180 A1, Jun. 6, 2024
Int. Cl. E04H 4/12 (2006.01); E04H 4/00 (2006.01); E04H 4/06 (2006.01)
CPC E04H 4/1245 (2013.01) [E04H 4/0025 (2013.01); E04H 4/06 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A pool, comprising:
an inner wall defining a pool cavity;
an air outlet assembly in communication with an external space;
a water inlet pipe to deliver water into the pool cavity;
a water outlet pipe to deliver water out of the pool cavity;
a water inlet assembly mounted on the inner wall and defining an inlet fluid passage between the pool cavity and the water inlet pipe; and
a water outlet assembly mounted on the inner wall and defining an outlet fluid passage between the pool cavity and the water outlet pipe, the water outlet assembly including:
a water outlet device;
a plurality of water outlet orifices disposed on a first end of the water outlet device and providing communication between the pool cavity and the outlet fluid passage;
at least one through hole disposed on a middle section of the water outlet device and providing communication between the air outlet assembly and the outlet fluid passage.