Textiles: fluid treating apparatus – Machines – Combined
Patent
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:
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patent: 2764169 (1956-09-01), Bazarnic
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patent: 4566970 (1986-01-01), Piai et al.
patent: 4580421 (1986-04-01), Babuin et al.
Babuin Piero
Colautti Roberto
Haugland Scott J.
Hornsby Harvey C.
Industrie Zanussi S.p.A.
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