Control system for plural speed fan motors

Claim 1

AN INTEGRATED REMOTE CONTROL AND AUTOMATIC SHUTOFF SYSTEM FOR AN ATTIC FAN MOTOR HAVING HIGH AND LOW SPEED WINDINGS, COMPRISING FIRST THERMAL RELAY MEANS HAVING ON AND OFF LOW VOLTAGE CONTROL INPUTS AND ADAPTED FOR CONNECTION TO A SOURCE OF FAN MOTOR POWER, SECOND THERMAL RELAY MEANS CONNECTED TO RECEIVE MOTOR POWER FROM SAID SOURCE THROUGH SAID FIRST THERMAL RELAY MEANS AND HAVING SELECTABLE LOW VOLTAGE INPUTS ADAPTED TO APPLY SAID POWER SELECTIVELY TO SAID HIGH AND LOW SPEED WINDINGS UPON THE MOMENTARY ENERGIZATION THEREOF, AN INTEGRATED REMOTE LOW VOLTAGE CONTROL PANEL INCLUDING A FIRST SINGLE POLE DOUBLE THROW NORMALLY OPEN ROCKER SWITCH CONNECTED TO THE INPUTS OF SAID FIRST RELAY MEANS FOR APPLYING AND REMOVING MOTOR POWER FROM SAID SOURCE TO SAID SECOND RELAY MEANS UPON THE MOMENTARY CLOSING THEREOF, A SECOND SINGLE POLE DOUBLE THROW NORMALLY OPEN ROCKER SWITCH CONNECTED TO THE INPUTS OF SAID SECOND RELAYY MEANS FOR CAUSING SAID POWER TO BE APPLIED TO SAID FAN MOTOR SELECTIVELY THROUGH SAID HIGH AND LOW SPEED WINDINGS UPON THE MOMENTARY CLOSING THEREOF, AND A FAN TIMER IN SAID PANEL HAVING A NORMALLY OPEN CONTACT ARRANGED TO CLOSE MOMENTARILY TO ENERGIZE SAID OFF INPUT OF SAID FIRST RELAY MEANS UPON THE CONCLUSION OF A PRESET PERIOD OF TIME TO REMOVE SAID SOURCE FROM SAID FAN MOTOR.