Gas and liquid contact apparatus – Contact devices – Reciprocating
Patent
1988-07-11
1989-08-01
Miles, Tim
Gas and liquid contact apparatus
Contact devices
Reciprocating
261DIG48, 2391022, B01F 304
Patent
active
048531618
ABSTRACT:
An auto turning-off humidifier having a water sensor with a sensing needle that can automatically function to cut off electricity if the water in the hollowed space of the base becomes less and cannot be touched by the sensing needle.
REFERENCES:
patent: 4087495 (1978-05-01), Umehara
patent: 4410139 (1983-10-01), Nishikawa et al.
patent: 4663091 (1987-05-01), Seo
Han Chi Hang Co., Ltd.
Miles Tim
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