Laundry washing machine
First Claim
1. A laundry washing machine comprising:
- a washing tub;
a drum rotatably mounted in said tub;
a washing liquid collector disposed at a position below said tub and communicating with an outlet thereof;
electric circulation pump means having an inlet and an outlet connected respectively to said collector and to said tub for repeatedly recirculating washing liquid from said collector to said tub;
said electric pump being connected in an electrical circuit including means for heating the washing liquid, means for controlling the filling level of washing liquid into said tub, and means for controlling the temperature to which the washing liquid is heated by said heating means;
said filling level control means comprising a first group and a second group of level control elements calibrated in such a manner that said elements of said first group are effective to establish filling levels that are lower than those established by said elements of said second group; and
actuating means for connecting said heating means and said temperature control means in series selectively with said elements of said first group in parallel with said electric recirculation pump means or with said elements of said second group.
1 Assignment
0 Petitions
Accused Products
Abstract
A laundry washing machine includes a washing tub, a washing drum for containing laundry to be washed, a collector for collecting washing liquid, and a recirculation pump connected to the collector and to the tub for recirculating the washing liquid from the collector to the tub and to spray it onto the laundry. The collector has therein at least one heating element and a thermostatic sensor for heating the washing liquid and for thermostatically controlling the temperature thereof, respectively. Level sensors and controls are provided for carrying out "intense" and "gentle" laundering programs for washing the laundry in a conventional manner, and with further sensors and controls for carrying out "intense" laundering programs at reduced filling levels of the washing liquid within the tub by repeatedly recirculating the liquid to the tub.
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Citations
7 Claims
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1. A laundry washing machine comprising:
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a washing tub; a drum rotatably mounted in said tub; a washing liquid collector disposed at a position below said tub and communicating with an outlet thereof; electric circulation pump means having an inlet and an outlet connected respectively to said collector and to said tub for repeatedly recirculating washing liquid from said collector to said tub; said electric pump being connected in an electrical circuit including means for heating the washing liquid, means for controlling the filling level of washing liquid into said tub, and means for controlling the temperature to which the washing liquid is heated by said heating means; said filling level control means comprising a first group and a second group of level control elements calibrated in such a manner that said elements of said first group are effective to establish filling levels that are lower than those established by said elements of said second group; and actuating means for connecting said heating means and said temperature control means in series selectively with said elements of said first group in parallel with said electric recirculation pump means or with said elements of said second group. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification