Gm Global Technolgoy Operations, Inc.

White Consolidated Industries, Inc.

Homer W Deaton

James A Bright

John Weibel, Jr

Dale A Beard

An improved control circuit is provided for an automatic dishwasher having a reversing relay with valve arrangement which supplies cavitation air to the fluid distribution system to reduce the energy level at which the liquid is sprayed into the wash chamber to achieve a GENTLE wash and rinse cycle for fine china and crystal. The reversing relay solenoid armature operates, in conjunction with a start relay, to provide a primary function of reversing the direction of rotation of the motor between wash and drain periods while providing an auxiliary function of opening its associated valve to admit cavitation air to the recirculation pump during a GENTLE wash and rinse cycle and closing the valve during the REGULAR wash and rinse cycle.

Gentle cycle valve for digital dishwasher

An automatic ice maker mechanism includes a face cam on a timing motor driven disc formed with a plurality of concentric cam tracks. The disc is supported on one side of a circuit board, said board having a plurality of flexible blade switches cantilever supported on its other side. The mechanism further includes a plurality of slidable cam follower plunger pins each of which is contacted by an associated blade switch such that each pin is biased into spaced follower relation with one of the cam tracks. In operation the circuit board control circuit interconnects ice maker cycling means with the motor to initiate rotation of the disc whereby the cam track profile effects predetermined movement of its associated pin in one direction causing the contact on an associated blade switch to open with its stationary contact. Continued rotation of the disc results in the blade switch moving its follower pin in the opposite direction reclosing the contacts such that selected functions of the ice maker are performed in a predetermined sequence.

Cam controlled switching means for ice maker

An automatic ice maker control circuit having an improved tolerance to sense the presence of stuck ice pieces in a predetermined pocket of an ice tray. A solid state temperature sensor and time delay circuit includes an operational amplifier controlled by a temperature sensor in one portion of a bridge network for sensing above or below freezing temperatures in the pocket, depending upon the presence of liquid or a stuck cube respectively, in said sensing pocket. The ice maker is conditioned for immediate harvest after the below freezing temperature is effected in the tray pocket when the sensor senses an above-freezing temperature. The time delay circuit conditions the ice maker for a delayed harvest until the predetermined temperature is effected in the tray sensing pocket if the sensor senses a below-freezing temperature.

Tray ice maker

A domestic clothes washer has an outer imperforate water container to retain the washing fluid and an inner perforate spin tub which is rotatable to centrifuge the washing fluid from clothes being washed therein. A vertically reciprocating agitator in the inner spin tub provides a pulsating toroidal circulation of washing fluid. The spin tub has a perforate generally vertical side wall and an imperforate bottom wall joined thereto by a curved wall portion containing a circumscribing row of holes positioned thereon located so as to carry particulate matter from the spin tub during wash periods while minimizing undesirable back flow through the row of holes during spin periods of the tub.

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Bellbrook, OH, United States of America

Homer W Deaton