Inventors:
Colin Bulthaup - San Francisco CA, US
Saul Griffith - San Francisco CA, US
Dan Goldwater - Berkeley CA, US
Corwin Hardham - San Francisco CA, US
George Homsy - San Francisco CA, US
Eric Wihelm - Oakland CA, US
Brian Warshawsky - San Francisco CA, US
Mitch Heinrich - Oakland CA, US
Michael Lin - San Francisco CA, US
Benji Rappoport - San Francisco CA, US
John Lewis - San Francisco CA, US
International Classification:
H02K 57/00
Abstract:
An electric power generation system is disclosed. The electric power generation system includes a string configured to be pulled; a bobbin configured to rotate when the string is unwound from the bobbin as it is being pulled; an electric power generator having a rotor wherein the rotor is mechanically coupled to the bobbin; and a mass attached to the rotor to store rotational energy and to output rotational energy while the string is being wound around the bobbin as the string is retracted.