Patent ID: 7592763
Filing Date: 2009-09-22
Classification: H02P

Abstract:
1. A method of motor relay operation comprising the steps of: providing a power source, providing two or more relays connected to the power source, providing a motor that receives power from the power source through the relays, providing a logic circuit connected to the relays, providing a switch connected to the logic circuit, providing a relay power source connected to the logic circuit, pressing the switch, causing the logic circuit to close one relay and then the other relays sequentially with a delay between each closing, until all of the relays are closed, causing the motor to start, or the motor starts before all relays are closed, detecting if the motor starts before all relays are closed, and if so stopping the motor and noticing a failure, otherwise allowing the motor to run and then pressing the switch, causing the logic circuit to open the relays, causing the motor to stop, and change the sequence in which the relays will be closed when the switch is next pressed such that the last relay to be closed will be one of the relays for which the greatest amount of time has passed since it was most recently the last relay to be closed in the sequence.