Abstract: A sump pump control system for monitoring and driving AC pumps that are supplied by directly either by AC utility power, or converted DC battery power. AC power is continuously monitored and the control automatically switches to DC battery supply in the case of power failure. DC battery power is converted to AC power. The control is equipped with unique pump switching circuitry allowing the pumps to be configured in parallel or staggered positions. Both pumps automatically alternate to prevent damage to pumps from humidity and corrosion that can result from remaining idle. Each pump has its own float switch to control operation. A third float switch controls both pumps in case of failure of either pump or float switch. Multiple visual and audio signals are included, displaying present power and pump conditions as well as alerting to any pump malfunction.

Abstract: A sump pump control system for monitoring and driving AC pumps that are supplied by directly either by AC utility power, or converted DC battery power. AC power is continuously monitored and the control automatically switches to DC battery supply in the case of power failure. DC battery power is converted to AC power. The control is equipped with unique pump switching circuitry allowing the pumps to be configured in parallel or staggered positions. Both pumps automatically alternate to prevent damage to pumps from humidity and corrosion that can result from remaining idle. Each pump has its own float switch to control operation. A third float switch controls both pumps in case of failure of either pump or float switch. Multiple visual and audio signals are included, displaying present power and pump conditions as well as alerting to any pump malfunction.

Abstract: This unit is intermittent duty, small, and light weight. Use of a thyristor(s) control reduces the unit's energy consumption through reduced AC input voltage while still producing sufficient demagnetizing power and effective demagnetizing results. This principle may be applied to ANY and ALL sizes of demagnetizing coils. With the burst control we can achieve same demagnetizing power and reduce overall power consumption of the demagnetizing coil(s) reducing size and weight of the coil(s). For this intermittent duty coil(s) the power consumption is reduced by over 40% and heating rate reduced which allows approx. 40% longer continuous running time.

Abstract: An upper magnet and a lower magnet respectively above and below the objects to be degaussed/demagnetized. They are arranged with their fields mutually transverse, and both at 45.degree. angles to a conveyor carrying the objects between the magnets. Either or both magnets may be rotated, selectively, and they are rotated in opposite directions.

Abstract: The articles to be degaussed are carried along on a conveyor under which is a magnet rotating on an axis extending through the conveyor and the articles.

Abstract: The cart is made as a unitary and rigid frame, having a lower platform and an elevated platform, both forming wells for holding loose items. The elevated platform is triangular, and the tripod supporting the TV camera is placed thereon, and releasably locked. The elevated platform is of less area than the lower platform, exposing a portion of the latter, and an adjustable operator's seat is mounted on the frame, over the exposed position of the lower platform. Wheels are provided, non-castering at a rear end of the cart, and casters at the front end, and a brake at the front end between the casters actuatable by the foot and when in braking position, lifting the front end of the cart off the floor.