Washing liquid filter in a laundry washing machine

Details Washing liquid filter in a laundry washing machine Washing liquid filter in a laundry washing machine

1987-03-31

1989-05-30

Hornsby, Harvey C.

Textiles: fluid treating apparatus

Machines

Combined

68208, 134111, 2104972, B06F 1702, B08B 310, B01D 2924

Patent

active

048339008

ABSTRACT:
A laundry washing machine includes a wash tub, a basket to receive laundry and rotatably mounted within the wash tub, a collection chamber connected to the bottom of the wash tub for collecting washing liquid therefrom, a drain pump for pumping washing liquid in a first direction from the collection chamber to a drain pump during a draining phase of the cycle of operation of the machine, an electrical heating element within the collection chamber for heating washing liquid collected therein, a recirculation pump for pumping heated washing liquid in a second direction from the collection chamber and for recirculating the heated washing liquid to an upper portion of the wash tub during a recirculation phase of the cycle of operation of the machine, and a filter removably mounted within the collection chamber. In particular accordance with the present invention, the filter is in the form of an integral one-piece member including a fine-mesh filtering surface extending transversely across the collection chamber at a position upstream of the heating element with regard to the second direction of washing liquid flow, and a wide-mesh filtering surface positioned upstream of the drain pump with regard to the first direction of washing liquid flow.

REFERENCES:
patent: 1212404 (1917-01-01), Robinson
patent: 1284669 (1918-11-01), Haug
patent: 1553395 (1925-09-01), Ressler
patent: 1764660 (1930-06-01), Sweetland
patent: 2148826 (1939-02-01), Mallard
patent: 2199792 (1940-05-01), Haberstump
patent: 2343743 (1944-03-01), Breckenridge
patent: 2413954 (1947-01-01), Conferman
patent: 2764169 (1956-09-01), Bazarnic
patent: 3727435 (1973-04-01), Menk
patent: 4566970 (1986-01-01), Piai et al.
patent: 4580421 (1986-04-01), Babuin et al.

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