Koninklijke Philips Corporation N.v.

U.S. Philips Corporation

Ytsen Wielstra

Jiecong Tang

Jolanda Harma Sagitta Winkel

Johannes Hotze Bernhard De Vries

Bernardo Arnoldus Mulder

Sjoerd Johannes Franciscus Brattinga

Mattheus Franciscus Langedijk

Ya Ling Lee

Hans Kuiper

Nienke Cornelie De Vries-Arentsen

Sabrina May Fong Khoo

Jan Auke Hovius

Paulus Cornelis Duineveld

Klaas Kooijker

Alwin Rogier Martijn Verschueren

Joldert Maria Boersma

Lihong Zhao

Lanying Ji

Rene Henk Van Der Woude

Dirk Herbert Johan Teeuw

Franciscus Maria Johannes Van Roemburg

Dirk Herbert J Han Teeuw

Gertrude Rioette Van Der Kamp

Jolanda H S Winkel

The invention provides an electronic domestic appliance () comprising a decalcifying apparatus () for purifying an aqueous liquid, wherein the electronic domestic appliance () comprises an electronic connector () for connecting to an external AC power source wherein the electronic connector () is functionally coupled with the DC power supply (), the electronic domestic appliance () further comprising a functional element () wherein purified aqueous liquid is applied and/or stored.

Electrosorption purification system with battery driven regeneration

The invention relates to an ironing system comprising a steam generating device comprising a steam chamber provided with a coating () comprising a coating base material () with metal particles () at least partly embedded in the coating base material (), wherein the coating base material () comprises a mixed metal silicate compound, wherein the mixed metal silicate compound comprises an alkali metal element and a first metal element, wherein the metal particles () comprise a second metal element, and wherein the first metal element and the second metal element are the same chemical element of the periodic table of the elements.

Ironing system with steam promoter coating

The invention provides a treatment plate () for a garment treatment appliance (), the treatment plate () having a contact surface () that in use slides on a garment () being treated, the contact surface () comprising a coating () comprising a metal oxide coating (), the metal oxide coating () comprising: &#x2014;first metal ions selected from the group consisting of titanium (Ti), zirconium (Zr), hafnium (Hf), scandium (Sc), and yttrium (Y); and&#x2014;second metal ions selected from the group consisting of cerium (Ce), manganese (Mn), and cobalt (Co). This invention provides a favorable gliding behavior.

Treatment plate for a garment treatment appliance

The invention provides a heater arrangement and method for heating a liquid, wherein the heater comprises a heating element, wherein the method comprises (i) heating the liquid in the heater wherein the heating element is in contact with the liquid, and (ii) applying a potential difference between the heating element and a counter electrode, wherein the potential difference has an AC component whereby the potential difference varies with an AC frequency in the range of 0.01-100 Hz and wherein the potential difference is applied with a cycle time, wherein the potential difference has a sign during a first part of the cycle time that is opposite of the sign of the potential difference during a second part of the cycle time, and wherein during one or more of the first part of the cycle time and the second part of the cycle time, the potential difference temporarily changes sign.

Electrochemical descaling by pulsed signal reversal

A method for heating a liquid in a heater having a heating element and a counter electrode includes the acts of (i) heating the liquid in the heater by heating the heating element to a temperature in the range of 120-250&#xb0; C., and (ii) applying an AC potential difference between the heating element and the counter electrode. The AC potential difference varies with an AC frequency in the range of 200-2500 Hz and has an amplitude in the range of 1-5 V, and the liquid flows in the heater between the heating element and the counter electrode.

The invention provides a method of using a water heater arranged for heating an aqueous liquid wherein the water heater comprises a heating element to heat aqueous liquid in the water heater. The method comprises (a) heating aqueous liquid in the water heater with the heating element), wherein the heating element is in contact with the aqueous liquid; and (b) applying a first AC voltage between the heating element and a counter electrode, and applying a DC voltage between the heating element and the counter electrode, wherein the DC voltage is at least 0.5 V, and wherein the heating element is chosen as positive electrode.

Prevention or reduction of scaling on a heater element of a water heater

The invention relates to a treatment plate () for a garment treatment appliance () for treating garments (), which plate has a contact surface which is provided with a sol-gel coating () that comprises an oxide of titanium, zirconium, hafnium, scandium, yttrium, or a mixture or combination thereof. The layer preferably has a thickness of less than 1 &#x3bc;m. Such a layer shows excellent properties. A garment treatment appliance comprising such a treatment plate, as well as processes to produce the coating on the contact surface of the treatment plate are also disclosed.

The invention relates to a treatment plate () for a garment treatment appliance () for treating garments (), which plate has a contact surface which is provided with a sol-gel coating () that comprises an oxide of titanium, zirconium, hafnium, scandium, yttrium, or a mixture or combination thereof, and wherein the coating comprises a mixed oxide comprising two or more of titanium oxide, zirconium oxide and yttrium oxide. The layer preferably has a thickness of less than 1 &#x3bc;m. Such a layer shows excellent properties. A garment treatment appliance comprising such a treatment plate, as well as processes to produce the coating on the contact surface of the treatment plate are also disclosed.

The invention provides a method of using a water heater arranged for heating an aqueous liquid wherein the water heater comprises a heating element to heat aqueous liquid in the water heater. The method comprising (a) heating aqueous liquid in the water heater with the heating element, wherein the heating element is in contact with the aqueous liquid; and (b) applying a first AC voltage between the heating element and a counter electrode and applying a second AC voltage between the heating element and the counter electrode, wherein the second AC voltage has a second AC frequency selected from the range of 0.02 Hz-5 Hz and wherein the ratio between the first AC frequency and the second AC frequency is 2 or more.

A steam generating device includes a steam chamber provided with a hydrophilic coating. The hydrophilic coating includes an acid phosphate compound and boron, such as a salt of boron with a metallic element. T he coating promotes steaming and is resistant to flaking.

Steam generating device provided with a hydrophilic coating

A steam generating device includes a steam chamber provided with a hydrophilic coating. The hydrophilic coating includes an alkali metal silicate compound and boron, preferably a salt of boron with a metallic element. The coating promotes steaming and is resistant to flaking.

Method of applying a marking or image on a substrate which is provided with a coating by means of a sol-gel process. After the application of a layer of a sol-gel solution on the substrate, an ink which is compatible with the sol-gel is applied on the wet layer. The ink penetrates into the layer and then the layer is cured to form the coating.

Method of providing a marking on a substrate

In a method of providing a surface with a protection layer having at least a first surface area () and a second surface area (), which surface areas () are distinguishable in that the surface areas () differ from each other in at least one visual property, parts of the surface situated outside the first surface area () are masked with a mask layer which partially covers the surface, and the surface is subjected to an electrochemical treatment (), whereby non-masked parts of the surface are treated. As the mask layer provided on the surface is a sol-gel layer forming the protection layer in the second surface area (), a wear-resistant surface-protection layer having visually distinguishable surface areas is provided in an efficient manner. An object which can be obtained by means of the proposed method is also described.

Protection of a surface by partially subjecting it to an electrochemical treatment

A heating element employing a substrate, an electrically insulating layer, and a resistive layer. The electrically insulating layer of the heating element includes a first layer that is obtained by a sol-gel process, and a second layer including a resin.

Insulating layer for a heating element

In a method of providing a surface with a protection layer having at least a first surface area ( ) and a second surface area ( ), which surface areas ( ) are distinguishable in that the surface areas ( ) differ from each other in at least one visual property, parts of the surface situated outside the first surface area ( ) are masked with a mask layer which partially covers the surface, and the surface is subjected to an electrochemical treatment ( ), whereby non-masked parts of the surface are treated. As the mask layer provided on the surface is a sol-gel layer forming the protection layer in the second surface area ( ), a wear-resistant surface-protection layer having visually distinguishable surface areas is provided in an efficient manner. An object which can be obtained by the proposed method is also described.

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Drachten, Netherlands

Ytsen Wielstra