ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,819, issued on Feb. 17, was assigned to NOVACORP INC. (Guangzhou, China).
"Waterproof heating module for smoke generator" was invented by Ming-Cheng Chang (Tainan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A waterproof heating module for a smoke generator comprises a heat exchanger (45) including an ejection portion (115) configured to eject smoke. The heat exchanger (45) is received in an inner side of an outer casing (135). The ejection portion (115) extends through a through-hole (139) of the outer casing (135) to an outer side of the outer casing (135). A closure plate (155) includes a closure face (157) and a coupling hole (159) ext...