Patent ID: 8847436

Claim:
A system for inductively providing power to an electrical device comprising: a load assembly comprising: a receiver circuit, an electrical device, a first attaching magnet, and a triggering device operable to produce a magnetic field; and an induction assembly comprising: an induction circuit operable to couple to the receiver circuit, a switch configured to control the operation of the induction circuit, the switch comprising a device operable to determine a magnitude of the magnetic field generated by the triggering device, a second attaching magnet provided by an electromagnet having a non-operating state and an operating state, and a current regulating device functionally coupled to the second attaching magnet and configured to control an amount of current delivered to the second attaching magnet; wherein the receiver circuit is operable to inductively couple to the induction assembly and provide power to the electrical device; wherein the switch is transitionable between a first state and a second state when the load assembly is brought in proximity to the induction assembly; wherein the induction circuit is inoperable when the switch is positioned in the first state, and operable when the switch is positioned in the second state; wherein the second attaching magnet is in the non-operating state when the switch is in the first state and in the operating state when the switch is in the second state: wherein the first attaching magnet is configured to couple to the second attaching magnet when the second attaching magnet is in the operating state; wherein proximity of the triggering device to the switch causes the switch to transition between the first state and the second state; wherein the switch is configured to provide an indication of the magnitude of the magnetic field produced by the triggering device to the current regulating device; wherein the current regulating device is configured to provide current to the second attaching magnet in proportion to the magnitude of the magnetic field indicated by the switch; wherein the second attaching magnet is configured to generate a magnetic field proportional to the current provided by the current regulating device; wherein the induction assembly, switch, and first attaching magnet are attachable to a first side of a structure; wherein the first attaching magnet couples to the second attaching magnet when brought into proximity of the second attaching magnet; and wherein the load assembly is removably attachable to a second side of the structure opposite the second attaching magnet.