IP Library › Granted Patent US 7,980,395
Granted Patent B2
US 7,980,395 · App. 12/361,721 · Granted Jul 19, 2011

Cross-flow filtration system

Assignee: Whirlpool Corporation
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Quick Facts
Patent No.
US 7,980,395
App. No.
12/361,721
Granted
Jul 19, 2011
Kind
B2
Abstract

An apparatus and method for filtering working fluid in an appliance with a cross-flow filter located within a recirculation circuit.

Claims (14)

1. An appliance comprising:

a washing chamber for holding articles to be washed;

a recirculation circuit for recirculating working fluid in the wash chamber;

a cross-flow filter located within the recirculation circuit for filtering particles from the working fluid;

a rotating disc spaced from the cross-flow filter for enhancing a shear force associated with the working fluid passing along the cross-flow filter; and

a pump for recirculating the working fluid at a rate sufficient to dislodge particles from the cross-flow filter.

2. The appliance of claim 1 and further comprising a sump fluidly connected with the recirculation circuit.

3. The appliance of claim 1 and further comprising a motor configured to rotate the rotating disc.

4. An appliance comprising:

a washing chamber for holding articles to be washed;

a recirculation circuit for recirculating working fluid in the wash chamber;

a cross-flow filter located within the recirculation circuit for filtering particles from the working fluid; and

a rotating disc spaced from the cross-flow filter for enhancing a shear force associated with the working fluid passing along the cross-flow filter.

5. The appliance of claim 4 and further comprising a motor configured to rotate the rotating disc.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2009
From: KEHL, DENNIS L.
To: WHIRLPOOL CORPORATION
Reel/Frame 022172/0373 →
Continuity (1)
Related Publication 20100187190A1 · Jul 29, 2010