US Patent 7877880 Hand held personal care appliance

A hand-held personal care appliance includes a handle accommodating a rechargeable power supply and having electrical contacts, an operating head detachably mountable on the handle and having contacts for connection to the contacts of the handle, and a charging device for recharging the power supply and having contacts for connection to the contacts of the handle. The operating head must be detached from the handle for recharging the power supply. Different operating heads may be mountable on the handle to form a vibrating safety razor, a hair trimmer, etc.