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Patent metadata

Field	Value
Publication number	US-9451864-B2
Application number	US-201214114436-A
Country	US
Kind code	B2
Filing date	Apr 27, 2012
Priority date	Apr 29, 2011
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

The present invention relates to a dishwasher. The dishwasher ( 10 ) comprises a washing chamber ( 11 ) and a water filtering system arranged in the lower part of the washing chamber ( 11 ). The water filtering system comprises a filter ( 20 ) and a central filter unit ( 30 ) that are removable arranged in said washing chamber ( 11 ). The filter ( 20 ) has a substantially flat shape and is supported around its outer periphery ( 21 ) by a contact surface ( 22 ) of a recess ( 24 ) in the lower part of the washing chamber ( 11 ) and is secured in the washing chamber by the central filter unit ( 30 ). The unit ( 30 ) is arranged in an opening ( 31 ) in the filter ( 20 ) and comprises a surface ( 35 ) that is pressing on the inner periphery ( 36 ) of the opening ( 31 ) in the filter ( 20 ) to secure the filter ( 20 ) in the intended position. The outer periphery ( 21 ) of the filter ( 20 ) or said contact surface ( 22 ) of the recess ( 24 ), and said surface ( 35 ) of the central filter unit ( 30 ) or the inner periphery ( 36 ) of the filter ( 20 ) extending around the opening ( 31 ) are covered by a layer ( 25; 39 ) of elastic material.

First claim

The invention claimed is:

1. A dishwasher comprising a washing chamber and a water filtering system arranged in the lower part of the washing chamber, said water filtering system comprises a filter and a central filter unit that are removably arranged in said washing chamber, said filter has a substantially flat shape and is supported around its outer periphery by a contact surface of a recess in the lower part of the washing chamber and is secured in the washing chamber by the central filter unit, said unit being arranged in an opening in the filter and comprising a surface pressing on the inner periphery of the opening in the filter to secure the filter in the intended position, wherein at least one of said outer periphery of the filter and said contact surface of the recess, and at least one of said surface of the central filter unit and the inner periphery of the filter extending around the opening are covered by a layer of elastic material, wherein the outer periphery of the filter and the inner periphery of the filter extending around the opening are shaped like flat rims, and wherein the outer periphery of the filter is flat in a radial direction of the filter, such that an upper surface of the outer periphery of the filter is collinear with an upper surface of the substantially flat shape of the filter in the radial direction.

2. The dishwasher according to claim 1 , wherein the flat rims of the outer periphery of the filter and the inner periphery extending around the opening are covered by the layer of elastic material.

3. The dishwasher according to claim 1 , wherein openings are arranged in the flat rims covered by the elastic material.

4. The dishwasher according to claim 1 , wherein a cross sectional shape of the layer of elastic material has a shape and size such that there are no gaps between at least one of the filter and the recess and the filter and the central filter unit.

5. The dishwasher according to claim 1 , wherein the opening in the filter has a substantially circular shape with a diameter substantially corresponding to the diameter of the central filter unit.

6. The dishwasher according to claim 1 , wherein the layer of elastic material is molded onto the outer periphery of the filter and onto the inner periphery of the filter extending around the opening.

7. The dishwasher according to claim 2 , wherein the contact surface of the recess in the lower part of the washing chamber defines a vertical part of the recess, wherein the vertical part of the recess defines a vertically extending surface relative to the washing chamber and wherein the elastic material around the outer periphery of the filter contacts the vertical part in order to achieve a durable and reliable sealing between the outer periphery of the filter and the recess and avoid storage of dirt in a gap formed between the outer periphery of the filter and the vertical part of the recess.

8. The dishwasher according to claim 1 , wherein a lower surface of the outer periphery of the filter is collinear with a lower surface of the substantially flat shape of the filter in the radial direction.

9. The dishwasher according to claim 1 , wherein the layer of elastic material defines a slot parallel to the substantially flat shape of the filter, wherein the outer periphery of the filter is disposed in the slot.

10. The dishwasher according to claim 1 , wherein the layer of elastic material is disposed on the upper surface of the outer periphery of the filter and a lower surface of the outer periphery of the filter.

Assignees

• Tempelmann Sarah
• Haider Gerhard
• Nordin Niklas
• Electrolux Home Products Corp Nv

Inventors

• Tempelmann Sarah
• Haider Gerhard
• Nordin Niklas

Classifications

• A47L15/4246

  Details of the tub (A47L15/4272 takes precedence; insulation arrangements A47L15/4209) · CPC title

• A47L15/4204 Primary

  Flat filters · CPC title

• A47L15/4202 Primary

  Water filter means or strainers · CPC title