WEARABLE, MOTION ACTIVATED BODY PART WARMING DEVICE

摘要

A wearable device configured as an article of apparel is used for warming a body part having a core such as a hand palm and an extremity such as a finger The wearable device has a circulatory system containing a heat transfer fluid, tubes located next to the extremity for heat transfer from the tubes to the extremity, and chamber located next to the core for heat transfer from the core to the fluid in the chamber. The circulatory system has a pump operable in response to movement of the body part to pump the heat transfer fluid around the circulatory system.