US 11,950,723 B2
Coffee filtering device with dual-layer filtering nets
Yu-Lung Lin, Tainan (TW)
Assigned to Join One Electric (Shenzhen) Co., Ltd, Guang Dong (CN)
Filed by Join One Electric (Shenzhen) Co., Ltd, Guang Dong (CN)
Filed on Aug. 11, 2021, as Appl. No. 17/399,212.
Claims priority of application No. 202121336565.9 (CN), filed on Jun. 16, 2021.
Prior Publication US 2022/0400887 A1, Dec. 22, 2022
Int. Cl. A47J 31/06 (2006.01); A47J 42/26 (2006.01)
CPC A47J 31/06 (2013.01) 4 Claims
OG exemplary drawing
 
1. A coffee filtering device comprising:
a filtering cup including a first peripheral wall and a first bottom wall connected to a lower end of the first peripheral wall, defining a chamber between the first peripheral wall and the first bottom wall, wherein the first peripheral wall includes a lower portion having a plurality of first lateral holes intercommunicating the chamber with an outer side of the filtering cup, wherein a plurality of first lateral filtering nets is disposed in the plurality of first lateral holes, wherein the first bottom wall includes a longitudinal hole in a central portion thereof and a plurality of first lower through-holes surrounding the longitudinal hole, wherein a plurality of first lower filtering nets is disposed in the plurality of first lower through-holes, and wherein the first peripheral wall includes a first coupling portion on an outer periphery thereof; a grinding device including a blade unit and a transmission shaft, wherein the blade unit is disposed in a lower portion of the chamber, wherein the transmission shaft extends through the longitudinal hole of the filtering cup and is coupled with the blade unit to rotate therewith; and
a base disposed around the filtering cup and including a second peripheral wall surrounding the first peripheral wall, wherein a second bottom wall is connected to a lower end of the second peripheral wall, wherein the second peripheral wall includes a lower portion having a plurality of second lateral holes, wherein a plurality of second lateral filtering nets is disposed in the plurality of second lateral holes, wherein the second bottom wall includes a longitudinal hole in a central portion thereof and a plurality of second lower through-holes surrounding the longitudinal hole of the second bottom wall, wherein the transmission shaft extends through the longitudinal hole of the second bottom wall, wherein a plurality of second lower filtering nets is disposed in the plurality of second lower through-holes, and wherein the second peripheral wall includes a second coupling portion coupled with the first coupling portion of the filtering cup.