IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0340919
(2008-12-22)
|
등록번호 |
US-8303727
(2012-11-06)
|
발명자
/ 주소 |
- Burgess, Brent M.
- Buser, Josef Arnold
- Fountain, Jordan Robert
- Sundaram, Sathish Andrea
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
7 |
초록
▼
A dishwasher includes a steam-generating vessel positioned in the wash chamber of the dishwasher's tub. A heating element heats water contained in the vessel to generate steam. The heating element may be embodied as thick-film heating element. The steam-generating vessel may be formed in the dishwas
A dishwasher includes a steam-generating vessel positioned in the wash chamber of the dishwasher's tub. A heating element heats water contained in the vessel to generate steam. The heating element may be embodied as thick-film heating element. The steam-generating vessel may be formed in the dishwasher's tub or embodied as a separate component that is secured to the tub.
대표청구항
▼
1. A dishwasher, comprising: a tub defining a washing chamber, the tub comprises a bottom wall having an upper surface which faces the washing chamber and a lower surface which faces away from the washing chamber, wherein the bottom wall has formed therein: (i) a recirculation sump which extends dow
1. A dishwasher, comprising: a tub defining a washing chamber, the tub comprises a bottom wall having an upper surface which faces the washing chamber and a lower surface which faces away from the washing chamber, wherein the bottom wall has formed therein: (i) a recirculation sump which extends downwardly from the upper surface of the bottom wall, and (ii) a steam-generating vessel which includes an outer wall and a lower wall configured to create a fluid retaining cavity, the lower wall being positioned above the upper surface of the bottom wall,a number of dish racks positioned in the washing chamber, anda heating element positioned below the lower wall of the steam generating vessel, the heating element being operable to heat the steam-generating vessel formed in and integral with the bottom wall of the tub. 2. The dishwasher of claim 1, wherein the outer wall extends upwardly from the upper surface of the bottom wall of the tub, the outer wall having (i) a lower edge which is secured to the upper surface of the bottom wall of the tub, and (ii) an upper edge, andthe lower wall is secured to the outer wall at a location between the lower edge of the outer wall and the upper edge of the outer wall. 3. The dishwasher of claim 2, wherein the outer wall of the steam-generating vessel is cylindrically shaped. 4. The dishwasher of claim 2, wherein: the outer wall of the steam-generating vessel comprises a continuous wall. 5. The dishwasher of claim 2, further comprising a machine compartment located below the bottom wall of the tub, wherein the heating element is located in the machine compartment. 6. The dishwasher of claim 5, wherein the machine compartment is sealed from the washing chamber of the tub. 7. The dishwasher of claim 1, wherein the heating element comprises a thick-film heating element. 8. A dishwasher, comprising: a tub defining a washing chamber, the tub comprises a bottom wall having an upper surface which faces the washing chamber and a lower surface which faces away from the washing chamber wherein the bottom wall has formed in and integral therewith a housing defining a steam generating vessel,a number of dish racks positioned in the washing chamber,a machine compartment positioned below the bottom wall of the tub, anda thick-film heating element positioned in the machine compartment, the thick-film heating element being operable to heat water located on the bottom wall of the tub to create steam within the washing chamber. 9. The dishwasher of claim 8, wherein: the thick-film heating element comprises a base with a heating surface extending upwardly therefrom, andthe heating surface of the thick-film heating element is in thermal contact with the bottom wall of the tub. 10. The dishwasher of claim 9, wherein the heating surface of the thick-film heating element is positioned in contact with the lower surface of the bottom wall of the tub. 11. The dishwasher of claim 8, wherein: the housing extends upwardly from the upper surface of the bottom wall,the thick-film heating element comprises a base with a heating surface extending upwardly therefrom, andthe heating surface of the thick-film heating element is positioned in the housing. 12. The dishwasher of claim 11, wherein the steam-generating vessel comprises: an outer wall which extends upwardly from the upper surface of the bottom wall of the tub, the outer wall having (i) a lower edge which is secured to the upper surface of the bottom wall of the tub, and (ii) an upper edge,a lower wall secured to the outer wall at a location between the lower edge of the outer wall and the upper edge of the outer wall, andthe heating surface of the thick-film heating element is in thermal contact with the lower wall of the steam-generating vessel. 13. The dishwasher of claim 12, wherein the outer wall of the steam-generating vessel is cylindrically shaped. 14. The dishwasher of claim 12, wherein: the outer wall of the steam-generating vessel comprises a continuous wall, andthe outer wall of the steam-generating vessel and the lower wall of the steam-generating vessel create a fluid-retaining cavity. 15. The dishwasher of claim 8, wherein; the bottom wall of the tub has a recirculation sump formed therein, andthe recirculation sump extends downwardly from the upper surface of the bottom wall of the tub. 16. A dishwasher, comprising: a tub defining a washing chamber, the tub comprises a bottom wall having an upper surface which faces the washing chamber and a lower surface which faces away from the washing chamber, wherein the bottom wall has formed therein a recirculation sump which extends downwardly from the upper surface of the bottom wall,a number of dish racks positioned in the chamber, anda steam-generating vessel formed in and integral with the upper surface of the bottom wall of the tub, anda heating element housed in the steam-generating vessel, the heating element being operable to heat the steam-generating vessel. 17. The dishwasher of claim 16, wherein the steam-generating vessel comprises: an outer wall which extends upwardly away from the upper surface of the bottom wall of the tub, the outer wall having (i) a lower edge which is secured to the upper surface of the bottom wall of the tub, and (ii) an upper edge, anda lower wall secured to the outer wall, at a location between the lower edge of the outer wall and the upper edge of the outer wall. 18. The dishwasher of claim 17, wherein the outer wall of the steam-generating vessel is cylindrically shaped. 19. The dishwasher of claim 17, wherein: the outer wall of the steam-generating vessel comprises a continuous wall, andthe outer wall of the steam-generating vessel and the lower wall of the steam generating vessel create a fluid-retaining cavity. 20. The dishwasher of claim 16, wherein the heating element comprises a thick-film heating element.
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