Abstract: An inductive power transfer device is provided for recharging cordless appliances. The device includes a plurality of inductors arranged in an array and connected with a power supply via switches which are selectively operable to activate the respective inductors. The inductors serve as the primary coil of a transformer. The secondary coil of the transformer is arranged in the appliance. When the appliance is arranged proximate to the power transfer device with the respective coils in alignment, power is inductively transferred from the device to the appliance via the transformer.

Abstract: An inductive power transfer device is provided for recharging cordless appliances. The device includes a plurality of inductors arranged in an array and connected with a power supply via switches which are selectively operable to activate the respective inductors. The inductors serve as the primary coil of a transformer. The secondary coil of the transformer is arranged in the appliance. When the appliance is arranged proximate to the power transfer device with the respective coils in alignment, power is inductively transferred from the device to the appliance via the transformer.

Abstract: An inductive power transfer device is provided for recharging cordless appliances. The device includes a plurality of inductors arranged in an array and connected with a power supply via switches which are selectively operable to activate the respective inductors. The inductors serve as the primary coil of a transformer. The secondary coil of the transformer is arranged in the appliance. When the appliance is arranged proximate to the power transfer device with the respective coils in alignment, power is inductively transferred from the device to the appliance via the transformer.

Abstract: Placing a vacuum between two panes of glazing material will form a glazing panel which is a perfect insulator against heat loss by conduction. However, at sea level air pressure of 14.7 psi, the glazing panel would have to resist a crushing force of about 2117 pounds per square foot. Rather than use mechanical pane separators as in prior art, in the present invention an electric charge cloud is trapped on or between the two layers of glazing material, in the vacuum space,in the vacuum space between them and the mutual electrostatic repulsion of the electrons or holes therein provide sufficient force to maintain separation of the glazing layers. The resulting panels may be seasonally or permanently attached to the sunny sides of buildings to trap solar heat, rendering them self-heating or used as window, greenhouse glazing etc.

Abstract: A storage device or tray is mounted on one step of a stepladder (usually the uppermost step) and is provided with removable trays, openings, etc. for holding objects such as small tools, small hardware, paint, etc in a position where they are readily available to a user supported on another step of the stepladder. The tray includes a clamp mounted on the tray which is adjustable relative to the tray for clamping against the step upon which the tray is mounted while the tray engages the upper side of the step, the clamp extending around one edge of the step. A removable peg, which extends through the tray and can be placed in any of multiple positions, engages the other side of the step for resisting movement of the tray while the tray is clamped to the step.

Abstract: An inductive power transfer device is provided for recharging cordless appliances. The device includes a plurality of inductors arranged in an array and connected with a power supply via switches which are selectively operable to activate the respective inductors. The inductors serve as the primary coil of a transformer. The secondary coil of the transformer is arranged in the appliance. When the appliance is arranged proximate to the power transfer device with the respective coils in alignment, power is inductively transferred from the device to the appliance via the transformer.