US RE35,153 E · Humidifier with float activated water level responsive turn off

Abstract

A humidifier including a base defining a reservoir for retaining a liquid volume having an upper surface; a humidification unit removably mounted on the base and having an electrically energized humidifier adapted to induce dispersion of liquid retained by the reservoir, and a switch adapted in an active condition to energize the humidifier and in an inactive condition to cause deenergization thereof; and an actuator retained by the base and adapted for movement between activating and inactivating positions with respect to the switch, the actuator adapted in its activating positions to actuate the switch into its active condition and in its inactivating positions to actuate the switch into its inactive condition and wherein both given changes in the level of the upper surface and movement of the humidification unit relative to the base produce the controlling movement of the [actuator] switch . Mounting of a switch on a removable humidification unit and an actuator for the switch in a base supporting the unit facilitates desired shut-off in response to either an inadequate water supply or removal of the unit.

Claims9

Dependent claims

A humidifier apparatus comprising:

a base [means] defining a reservoir for retaining a liquid volume having an upper surface;
a humidification unit removably mounted on said base [means] and comprising an electrically energized humidifier [means] adapted to induced dispersion of liquid retained by said reservoir, a flow passage including a receiving end communicating with said reservoir and a discharge end for discharging dispersed liquid received therefrom, and a switch [means] adapted in an active condition to energize said humidifier [means] and in an inactive condition to cause deenergization thereof;
[and]
an actuator [means] retained by said base [means] and adapted for movement between activating and inactivating positions with respect to said switch [means], said actuator [means] adapted in said activating positions to actuate said switch [means] into said active condition and in said inactivating positions to actuate said switch [means] into said inactive condition and wherein both given changes in the level of said upper surface and movement of said humidification unit relative to said base [means] produce said movement of said [actuator means] switch;
and
a guide for guiding movement of said actuator between said activating and inactivating positions .

3 more elements

Dependencies are inferred from the claim text.

Humidifier with float activated water level responsive turn off

Life of this patent

Humidifier with float activated water level responsive turn off

Life of this patent

Abstract

Claims9