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AssigneeU.S. Philips Corporation
InventorSijtze van der Meer
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An electric steam iron has two heating elements (21, 41), each of high wattage. The elements heat the soleplate (20) and a water tank of a steam generator (40). The elements are connected in such a way that they cannot be switched on simultaneously. The quantity of steam which is delivered by the iron during ironing is regulated by an electronic circuit (FIG. 2) which controls the heating of the steam generator. The heating takes place in a manner in which the steam delivery varies depending on the steam requirements during an ironing cycle (FIGS. 4a-4e). The steam generator can be designed as a pressure tank in which a buffer stock of steam is formed during an interruption in ironing, so that at the beginning of an ironing cycle a large quantity of steam can be delivered and at the same time the soleplate can be heated up.
An electric steam iron, comprising a housing, a soleplate connected thereto and provided with steam outlets, a first heating element for heating of the soleplate, a steam generator connected via a steam pipe to the steam outlets in the soleplate, and a second heating element for heating the steam generator, the steam iron having a control circuit for regulating the output power of the second heating element during a period of active ironing to produce a varying amount of steam by the steam generator in said period.
An electric steam iron comprising a housing, a soleplate connected thereto and provided with steam outlets, a first heating element for heating of the soleplate, a steam generator connected via a steam pipe to the steam outlets in the soleplate, and a second heating element for heating the steam generator, the steam iron having a control circuit for regulating the output power of the second heating element during an ironing cycle, the control circuit having time-measuring means and being equipped for regulation of the output power of the second heating element at least partly as a function of the time elapsing during an ironing cycle.
An electric steam iron comprising a housing, a soleplate connected thereto and provided with steam outlets, a first heating element for heating of the soleplate, a steam generator connected via a steam pipe to the steam outlets in the soleplate, and a second heating element for heating the steam generator, the steam iron having a control circuit for regulating the output power of the second heating element during an ironing cycle,
An electric steam iron comprising a housing, a soleplate connected thereto and provided with steam outlets, a first heating element for heating of the soleplate, a steam generator connected via a steam pipe to the steam outlets in the soleplate, and a second heating element for heating the steam generator, the steam iron having a control circuit for regulating the output power of the second heating element during an ironing cycle, the control circuit having time-measuring means and being equipped for regulation of the output power of the second heating element at least partly as a function of the time elapsing during an ironing cycle;
Dependencies are inferred from the claim text.