	US 12,138,498 B2
	Multi-mode starting dry powder fire extinguishing ball
Yonghua Zheng, Hunan (CN); Cuifang Chen, Hunan (CN); Yong Li, Hunan (CN); and Bin Huang, Hunan (CN)
Assigned to HUNAN ANMIN SCIENCE AND TECHNOLOGY CO., LTD., Yongzhou (CN)
Appl. No. 17/414,947
Filed by HUNAN ANMIN SCIENCE AND TECHNOLOGY CO., LTD., Hunan (CN)
PCT Filed Nov. 25, 2019, PCT No. PCT/CN2019/120628 § 371(c)(1), (2) Date Jun. 16, 2021, PCT Pub. No. WO2020/108434, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 201821970310.6 (CN), filed on Nov. 27, 2018.
Prior Publication US 2022/0080240 A1, Mar. 17, 2022
Int. Cl. A62C 35/08 (2006.01)

CPC A62C 35/08 (2013.01)

5 Claims

1. A dry powder fire extinguishing ball, comprising a ball body (1), a first lead (4) and a second lead (5), a fire extinguishing medium (2) is provided in the ball body (1) and is a dry powder fire extinguishing agent, wherein the ball body (1) is also provided with an initiator (31) for enabling the inside of the ball body (1) to expand until it explodes after being started so that the fire extinguishing medium (2) inside is configured to be ejected outside; one end of each of the first lead (4) and the second lead (5) is located in the initiator (31), the one end of the second lead (5) located inside of the initiator (31) is also connected with an electric match (51) disposed inside the initiator (31); the other end of the first lead (4) extends to the outside of the ball body (1) and is configured to activate the initiator (31) when heated, the other end of the second lead (5) extends to the outside of the ball body (1) and is configured to enable the initiator (31) to start after being powered on; multi-mode activation of the dry powder fire extinguishing ball is achieved by activating the initiator (31) through either the first lead (4) or the second lead (5), wherein the initiator (31) is configured to utilize potassium perchlorate and magnesium powder to produce a large amount of high-pressure gas when being heated or exposing to an open flame.