US 12,303,057 B2
Physical non-stick pan with convex-concave structure, and manufacturing method thereof
Ke Wang, Jinhua (CN)
Assigned to ZHEJIANG BAHE KITCHENWARE CO., LTD., Jinhua (CN)
Appl. No. 18/277,390
Filed by ZHEJIANG BAHE KITCHENWARE CO., LTD., Jinhua (CN)
PCT Filed May 8, 2020, PCT No. PCT/CN2020/089170
§ 371(c)(1), (2) Date Aug. 16, 2023,
PCT Pub. No. WO2021/203504, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 202010265736.7 (CN), filed on Apr. 7, 2020; and application No. 202010322008.5 (CN), filed on Apr. 22, 2020.
Prior Publication US 2024/0298835 A1, Sep. 12, 2024
Int. Cl. A47J 27/022 (2006.01); A47J 36/02 (2006.01); B21D 51/22 (2006.01)
CPC A47J 27/022 (2013.01) [A47J 36/025 (2013.01); B21D 51/22 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A physical non-stick pan with a convex-concave structure, comprising a pan body, wherein the convex-concave structure is uniformly formed on an inner surface of the pan body, the convex-concave structure comprises a convex edge protruding from the inner surface of the pan body and a recess enclosed by the convex edge, and a physical non-stick layer is at least arranged on the inner surface of the pan body in the recess, wherein the physical non-stick layer comprises a surface including alternating triangular-shaped features forming an outwardly sawtooth profile.