Heated and cooled boot and suit with forced air circulation

Abstract From the Canadian patent

There is disclosed a boot with an internal forced air circulation system and an inflatable lining. The boot can also be used to circulate air through protective clothing and can have a footwarmer mechanism. The boot is ideally suited for skiing. Three alterenative mechanisms are disclosed all, of which are operated by the normal movements of the person wearing the boot. The footwarmer mechanism is mounted entirely as an insert for the outer shoe or boot and is most preferably removably mounted on a bottom plate that is secured as an insert to the lower sole portion to the inner shoe. A heat engine, which is a compressible fluid engine operating on a quasi-Carnot cycle, can be used as the …