초록 ▼

An electric steam iron, tea making machine of coffee making machine contains a supply of water softening agent which is contacted by tap water issuing from a container whereby the volume of the supply of softening agent increases when its water softening capacity is reduced or exhausted. A monitorin

An electric steam iron, tea making machine of coffee making machine contains a supply of water softening agent which is contacted by tap water issuing from a container whereby the volume of the supply of softening agent increases when its water softening capacity is reduced or exhausted. A monitoring device generates signals when the supply of softening agent expands to indicate that a fresh supply must be inserted into the appliance. The supply can be confined in a bellows, and the monitoring device can be designed to generate visible signals in response to detected expansion of the bellows as a result of a reduction or exhaustion of the water softening capacity of the confined supply of softening agent.

대표청구항 ▼

An appliance comprising a vessel arranged to store a body of water, such as magnesium- and/or calcium-containing tap water, said vessel having a water outlet; means for softening water which issues from said outlet, including a supply of water softening agent which is contacted by water and the comp

An appliance comprising a vessel arranged to store a body of water, such as magnesium- and/or calcium-containing tap water, said vessel having a water outlet; means for softening water which issues from said outlet, including a supply of water softening agent which is contacted by water and the composition of which is such that its volume changes when its water softening capacity is reduced or exhausted; and means for monitoring the volume of the supply of softening agent.