Abstract: A device for selectively storing and presenting critical medical information about a person who needs immediate medical assistance includes a housing, a memory, a microprocessor and an output member. The microprocessor senses when the information has been requested and presents it through the output member either orally or visually. The device is preferably incorporated into an accessory worn by the patient/wearer for example as a wrist watch, pendant, pin, or other similar accessory.

Abstract: Modular roofing panels for removing snow and ice from the edge of a roof are interconnected. A defective panel or one damaged by severe weather can be replaced without incurring extensive wiring difficulty. An electrically operated valve element at the edge of the panels can selectively guide water from the roof either over the gutter thus effectively bypassing it, or into the gutter.