sparky wrote:
On Apr 14, 2:09 pm, "William Sommerwerck"
wrote:

This general idea is hardly new. There have been patents for gadgets you
attach to your leg, and body movements generate electricity to charge a
battery.

The problem with this patent is that it uses a piezo device. Unfortunately,
they don't generate very much energy. You'd certainly be able to "top off"
the battery, but I don't think you'd be able to bring it back from a heavy
discharge very quickly. Maybe the former is all they care about.




Quite similar to the self winding mechanical wrist watches.


Certainly nothing new !


Seiko makes "Kinetic" quartz watches now:

http://www.japanese-watches.com/seiko_kinetic.htm

I wonder if the "tiny technological marvel" mentioned as the energy
storage device is a supercap or a rechargable battery?

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10e12 furlongs per fortnight.