Dryer control

Claim 1

A CONTROL FOR A DRYER HAVING MEANS FOR AGITATING ITEMS OF A LOAD TO BE DRIED AND ELECTRODE MEANS ADAPTED TO CONTACT ITEMS OF THE LOAD TO ESTABLISH A CURRENT PATH THERETHROUGH, THE RESISTANCE OF SAID PATH BEING A FUNCTION OF THE MOISTURE CONTENTS OF THE ITEMS OF THE LOAD CONTACTING SAID ELECTRODES; SAID CONTROL COMPRISING A SOURCE OF UNIDIRECTIONAL CURRENT, A VOLTAGE DIVIDER WHICH IS CONNECTED ACROSS SAID SOURCE AND INCLUDES SAID PATH FOR PROVIDING A VOLTAGE WHICH IS A FUNCTION OF THE RESISTANCE OF SAID PATH, A CAPACITOR, A NONLINEAR RESISTANCE NETWORK WHICH CONNECTS SAID DIVIDER TO SAID CAPACITOR AND THROUGH WHICH SAID VOLTAGE IS APPLIED TO SAID CAPACITOR, SAID NETWORK PERMITTING SAID CAPACITOR TO DISCHARGE MORE RAPIDLY THAN TO CHARGE, SWITCHING MEAND ADAPTED WHEN ACTUATED TO TERMINATE THE DRYING CYCLE OF SAID DRYER, AN ELECTRICAL CIRCUIT INTERCONNECTING SAID CAPACITOR WITH SAID SWITCHING MEANS THEREBY TO TERMINATE SAID DRYING CYCLE WHEN THE CHARGE ON SAID CAPACITOR REACHES A PREDETERMINED LEVEL WHEREBY SAID CONTROL IS BIASED TO RESPOND TO THE WETTEST ITEMS IN A LOAD EXHIBITING NONUNIFORM DRYING RATES AND WHEREBY SAID SWITCHING MEANS IS NOT ACTUATED UNTIL THESE WETTEST ITEMS REACHES A PREDETERMINED DRYNESS.