Cleaning and liquid contact with solids – Apparatus – With treating fluid purifying or separating means
Reexamination Certificate
2007-08-07
2007-08-07
Perrin, Joseph L. (Department: 1746)
Cleaning and liquid contact with solids
Apparatus
With treating fluid purifying or separating means
C134S11500R, C134S186000
Reexamination Certificate
active
10785027
ABSTRACT:
A dishwasher includes a pump assembly which functions to chop all fluid entrained soil prior to directing fluid to upper and lower wash arms. A flow conduit leading to the upper wash arm is provided with a sampling port which directs a percentage of the fluid flow into a filter chamber having one or more fine mesh filter screens that open into the dishwasher tub basin. The filter chamber receives washing fluid through a sampling port that interconnects with the flow conduit. The filter chamber can be fluidly connected to a drain based on the position of a valve which opens when washing fluid recirculation ceases.
REFERENCES:
patent: 4319598 (1982-03-01), Dingler et al.
patent: 4319599 (1982-03-01), Dingler et al.
patent: 4350306 (1982-09-01), Dingler et al.
patent: 4612947 (1986-09-01), Duncan
patent: 4848382 (1989-07-01), Bertsch et al.
patent: 5165433 (1992-11-01), Meyers
patent: 5165435 (1992-11-01), Thies et al.
patent: 5711326 (1998-01-01), Thies et al.
patent: 5779812 (1998-07-01), Thies et al.
patent: 5909743 (1999-06-01), Thies et al.
patent: 6103017 (2000-08-01), Thies et al.
patent: 6182674 (2001-02-01), Jozwiak et al.
patent: 6234184 (2001-05-01), Tuller et al.
patent: 6811617 (2004-11-01), Elick et al.
patent: 6997193 (2006-02-01), Elick et al.
patent: 7146992 (2006-12-01), Elick et al.
patent: 2002/0157995 (2002-10-01), Hegeman et al.
patent: 2004/0003833 (2004-01-01), Elick et al.
patent: 2004/0159337 (2004-08-01), Johnson et al.
patent: 2004/0159338 (2004-08-01), Elick et al.
patent: 2006/0174916 (2006-08-01), Hedstrom et al.
patent: 2006/0174924 (2006-08-01), Hedstrom et al.
Elick Robert A.
Tuller Barry E.
LaFrenz Michael D.
Morrison John
Perrin Joseph L.
Whirlpool Corporation
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