Dispensing – Including timer – For wash cycle ingredient dispenser
Patent
1991-05-16
1992-07-28
Hajec, Donald T.
Dispensing
Including timer
For wash cycle ingredient dispenser
222 54, 222129, 134 93, 68 17R, A47L 1500
Patent
active
051334879
ABSTRACT:
A dispenser stores and dispenses two fluent materials, such as detergent and rinse aid in a clothes washer or diswashing machine. The dispenser has a hollow casing defining a pair of discrete storage reservoirs for accommodating the detergent and rinse aid. The detergent and rinse aid are released from the dispenser under the operation of a thermomagnetic mechanism. The thermomagnetic mechanism includes a first lamellar element of an electrically conductive alloy having a Cuurie-point, a second electrically conductive element, and an electrically energizable heating element interposed between the first and second elements. The actuator includes a permanent magnet and a release mechanism to which either the permanent magnet or the thermomagnetic mechanism is mounted. An attractive force between the permanent magnet and thermomognetic mechanism maintains the release mechanism in a position in which the detergent and/or rinse aid is confined within a respective storage reservoir. On the other hand, when the heating element heats the first lamellar element to above its Curie-point, the first element loses its magnetic characteristic and the permanent magnet is no longer attracted thereto. In this case, the release mechanism allows the detergent and/or rinse aid to flow from the dispenser.
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Giannino Sandrin
Hajec Donald T.
Pomrening Anthoula
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