Patent ID: 8410753

Claim:
In combination: a hand-held device having a ferromagnetic body, a rechargeable battery in the body, and contacts connected to the battery and on the body; and a charger having a magnet having an end face, formed with a central throughgoing hole, and capable of attracting the ferromagnetic body and holding the body in a charging position, a central contact pin extending through the hole, and a ring contact surrounding the central contact pin, the ring contact and central contact pin having respective end faces engaging the contacts of the charger in the charging position, the central contact pin having a widened inner end opposite its end face and being shiftable from a position with its inner end resting on a back face of the magnet and its end face projecting a predetermined distance past the end face of the magnet and a raised position with its inner end spaced from the back face of the magnet and its end face closer to the end face of the magnet.