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US4853161A Expired / Lapsed US ⏱️ 0.0 years remaining

Auto turning-off humidifier

Assignee: Guan Hong Enterprise Co Ltd
•
Filing: 1988-07-11
•
Granted: 1989-08-01
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Expires: 2008-07-11
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Abstract

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.

Inventors

  • 👤 Koa-Cherng Huang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 11:32
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/12; Y; Y10; Y10S; Y10S261/00; Y10S261/48

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 229 words
An auto turning-off humidifier comprising, a base having a hollowed space for storing water, a vibrating plate set at the bottom surface of the base, and a water sensor set at a side wall of the base with its sensing needle protruding inside the hollowed space for storing water for functioning to cut off electricity in case of not touching water, a water tank being placed on said base and having a vapor room at its central part separated from the water tank to prevent the water in the tank from going into the vapor room, a vapor room being placed at the central part of the water tank, separated from the water tank, and just located just above the vibrating plate in the base, a sieve set at the bottom of the vapor room, having a round hole at its center to let the vapor produced by the vibrating plate pass through into the vapor room, and able to let down the water drops coming down from the vapor room, a lid covering a hole on the top of the vapor room and having several little windows for the vapor in the vapor room to flow out and, a handle set at the bottom of the water tank for carrying it and having a round hole for the water vapor produced by the vibrating plate to pass through.
Claim 2
Dependent Claim 229 words
An auto turning-off humidifier comprising, a base having a hollowed space for storing water, a vibrating plate set at the bottom surface of the base, and a water sensor set at a side wall of the base with its sensing needle protruding inside the hollowed space for storing water for functioning to cut off electricity in case of not touching water, a water tank being placed on said base and having a vapor room at its central part separated from the water tank to prevent the water in the tank from going into the vapor room, a vapor room being placed at the central part of the water tank, separated from the water tank, and just located just above the vibrating plate in the base, a sieve set at the bottom of the vapor room, having a round hole at its center to let the vapor produced by the vibrating plate pass through into the vapor room, and able to let down the water drops coming down from the vapor room, a lid covering a hole on the top of the vapor room and having several little windows for the vapor in the vapor room to flow out and, a handle set at the bottom of the water tank for carrying it and having a round hole for the water vapor produced by the vibrating plate to pass through.

References Cited (Backward Citations)

US4087495A Cited
US4410139A Cited
JPS54101507A Cited
JPS5659142A Cited
US4663091A Cited
JPH05327253A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-07-31 1993-01-30 1993-08-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-31 1997-01-30 1997-08-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-31 2001-01-30 2001-08-01 $7700.00 Window Closed / Lapsed

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