Title: Automatic liquid level control for automatic washers

Abstract: An automatic liquid level control is provided for an automatic washing machine which measures the volume of liquid required to be added to the tub to increase the liquid level in the tub by a predetermined increment. The measured amount is compared to a reference amount corresponding to an empty tub. When the measured amount equals the reference amount, the clothes in the washer will be covered and the control terminates introduction of the liquid into the tub and continues with the remainder of the washing cycle.

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Inventors: Getz, Edward H. (Pipestone Township, Berrien County, MI)
Ott Jr., Clarence R. (Lake Township, Berrien County, MI)

Application Number: 06/272677
Filing Date: 1981-06-11
Publication_date: 1984-01-31
Assignee: WHIRLPOOL CO (US)

Primary Class(es): 8/158 68/207, 68/12.190, 68/12.230
Other Classes: D06F39/08; D06F33/02; D06F39/08
US Patent Ref:

3086836	April, 1963	Ohmann	8/158	Apparatus and method for controlling the liquid level in a washing machine
3156115	November, 1964	Adelmann	73/198	Rate of flow indicating device
3478373	November, 1969	McBride	8/158	FLOW RESPONSIVE AUTOMATIC WATER LEVEL CONTROL
3478374	November, 1969	McBride	8/158	AUTOMATIC WATER LEVEL CONTROL
3498090	March, 1970	Mason	68/207	TORQUE RESPONSIVE WATER LEVEL CONTROL
4201240	May, 1980	Case	68/207	Electronic liquid level monitor and controller
4303406	December, 1981	Ross	8/158	Automatic liquid level control

Other Refs: GB2034927

June, 1980

68/12R

Primary Examiner: Coe, Philip R.
Assistant Examiner:
Attorney: Hill, Van Santen, Steadman & Simpson

Claims: