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 D856,842 - issued in 2019 for a design for a "flame fire suppressant ball." #DesignPatents

https://files.mastodon.social/media_attachments/files/111/026/079/679/335/762/original/0625bc0c81dcfb9c.jpg 
 @e7f76f0d 
This is neat. I was going to reply with something silly but when I Googled what they are used for, neat. 

"The Fire X Fire Extinguisher Ball is a round-shaped fire extinguisher that self-activates after about three to five seconds of fire exposure. It disperses non-toxic extinguishing chemicals, and it can extinguish fires within a three-cubic meter radius." 
 @e7f76f0d Do not taunt Flame Fire Suppressant Ball™. Do not use Flame Fire Suppressant Ball™ near open flame or hot surface. Do not use Flame Fire Suppressant Ball™ more than 4 hours total in any 24-hour period. If you experience nausea or blurred vision, discontinue use of Flame Fire Suppressant Ball™. If Flame Fire Suppressant Ball™ emits smoke, evacuate area immediately. Flame Fire Suppressant Ball™ is available in 49 states (sorry, Tennessee).