(19)
(11)EP 3 954 447 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.03.2022 Bulletin 2022/13

(43)Date of publication A2:
16.02.2022 Bulletin 2022/07

(21)Application number: 21179737.8

(22)Date of filing:  16.06.2021
(51)International Patent Classification (IPC): 
A63J 5/02(2006.01)
(52)Cooperative Patent Classification (CPC):
A63J 5/025
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30)Priority: 14.08.2020 CN 202010819141
14.08.2020 CN 202021702139 U

(71)Applicant: Novacorp Inc.
Guangzhou City, Guangzhou Guangdong (CN)

(72)Inventor:
  • Chang, Ming-Cheng
    Tainan (TW)

(74)Representative: Brown, Michael Stanley 
Alpha & Omega, Chine Croft East Hill
Ottery St. Mary, Devon EX11 1PJ
Ottery St. Mary, Devon EX11 1PJ (GB)

  


(54)SMOKE GENERATOR USING DRY ICE


(57) A smoke generator includes a casing having a first chamber receiving dry ice, a second chamber receiving water, and a third chamber. The casing includes an outer side having a smoke outlet intercommunicating with the second chamber. The first chamber includes a smoke discharge port intercommunicating with the second chamber. A water pump device in the third compartment includes a water inlet located in the second chamber and a water spraying end located in the first chamber. The water pump device delivers water in the second chamber to the first chamber. The dry ice contacts with the water and gasifies into smoke that enters the second chamber via the smoke discharge port and is then ejected out via the smoke outlet. Water in the first chamber is flowable back to the second chamber. A heater is disposed in the second chamber and can increase the temperature of the water.







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Search report