Patent ID: 6059536
Filing Date: 2000-05-09
Classification: A61H,F04B

Abstract:
An emergency shutdown system for a pool or spa water-circulating pump comprising a pool or a spa, a power source, a pump motor connected to the power source, a water-circulating pump connected to the motor, the pump having an influent side and an intake and an exhaust, an effluent side, the influent side further comprising an influent line connected to the intake of the pump, the effluent side further comprising an effluent line connected to the exhaust of the pump, a vacuum switch connected to the influent side for providing an electrical shut-off in response to increased vacuum on the influent side, a pump switch electrically connected between the power source and the motor, the pump switch being connected to the vacuum switch for receiving the electrical shut-off from the vacuum switch, wherein the pump switch breaks electrical connection between the power source and the motor in response to the receiving of the electrical shut-off from the vacuum switch, an audible alarm and a visual alarm electrically connected to the vacuum switch for energizing the alarms upon increased vacuum on the influent side, the system further comprising an on-off switch, a start switch and a vacuum bypass switch, the start switch electrically overriding the electrical shut-off to the pump switch for electrically connecting the power source to the motor during high vacuum level pump start-up, the bypass switch electrically overriding the electrical shut-off to the pump switch for electrically connecting the power source to the motor during high vacuum use of the water-circulating pump for pool or spa vacuuming.