US 12,262,838 B2
Manual pressure type coffee maker
Hugo Yves Lucien Cailleton, Foshan (CN)
Assigned to HUA KU (SHUNDE) TECH ELECTRIC CO., LTD., Foshan (CN)
Appl. No. 17/416,992
Filed by HUA KU (SHUNDE) TECH ELECTRIC CO., LTD., Foshan (CN)
PCT Filed Oct. 8, 2019, PCT No. PCT/CN2019/109903
§ 371(c)(1), (2) Date Aug. 30, 2021,
PCT Pub. No. WO2020/125137, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 201811567072.9 (CN), filed on Dec. 20, 2018; and application No. 201910918946.9 (CN), filed on Sep. 26, 2019.
Prior Publication US 2022/0053965 A1, Feb. 24, 2022
Int. Cl. A47J 31/20 (2006.01); A47J 31/00 (2006.01); A47J 31/06 (2006.01)
CPC A47J 31/20 (2013.01) [A47J 31/005 (2013.01); A47J 31/0663 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A manual pressure type coffee maker, comprising an outer cup body, the outer cup body is provided with a cup cavity with an open end, and the outer cup body is provided with an inner container that can be inserted into and pulled out of the cup cavity from the open end, wherein the inner container is provided with at least an inner container cavity for containing brewing materials, the inner container is provided with at least a sealing ring that separates the cup cavity to form a closed space, and a bottom of the inner container cavity is provided with at least a filter communicated with the closed space, when the inner container is pulled outwards, negative pressure is formed in the closed space so that liquid in the inner container cavity is sucked into the closed space through the filter;
wherein the outer cup body is provided with a driving device which can drive the inner container to be pulled out of the outer cup body; and
wherein an outer wall of the inner container is provided with external threads, the driving device is a ring sleeve disposed on the outer cup body and sleeved outside the inner container, and the ring sleeve is provided with internal threads matched for connection with the external threads.