Textiles: fluid treating apparatus – Machines – Single tub and automatic sequential operation mechanism
Patent
1979-03-30
1980-09-30
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
Single tub and automatic sequential operation mechanism
68 236, 68207, 68208, D06F 1706, D06F 3908
Patent
active
042248116
ABSTRACT:
An automatic washer which comprises a washer body used to receive water and provided with a water-draining passage; a rotary tub built in the washer body to hold water and material of washing and fitted with a stirring blade member; drive means for selectively rotating the stirring blade member or rotary tub; water guide passage extended between the water-draining passage and the bottom of the rotary tub and fitted with a valve in an intermediate position; and a timer which, during washing and rinsing steps, closes the valve to supply water to the rotary tub, rotates the stirring blade member to produce vertical streams of water for washing, and, during water drain and dehydration steps, opens the valve to expel water from the water guide passage, rotates the rotary tub, and discharges water into the washer body from above the rotary tub by a pumping action resulting from the rotation of the rotary tub, wherein that side of the valve of the water guide passage which faces the water-draining passage is designed to cause water to flow at in higher rate than on that side of said valve which faces the rotary tub; an air trap is provided on that side of the water guide passage valve which faces the rotary tub; and the timer is designed to open the valve during the water drain and dehydration steps, and rotate the rotary tub when a fall in the water level in the rotary tub is detected by a decrease in air pressure in the air trap.
REFERENCES:
patent: 2972877 (1961-02-01), Platt
Coe Philip R.
Tokyo Shibaura Denki Kabushiki Kaisha
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