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US 2008/0157635 A1Published application
Motor powered string retraction for a human power generator
AssigneePotenco, Inc.
InventorsColin Bulthaup, Saul Griffith, Dan Goldwater, Corwin Hardham, Georg Homsy, Eric Wilhelm
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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 the string is pulled; an electric power generator having a rotor wherein the rotor is mechanically coupled to the bobbin; and a retraction circuit, wherein the retraction circuit uses the electric power generator as a motor to retract the string.
Claims9
An electric power generation system including:
- a string configured to be pulled;
- a bobbin configured to rotate when the string is unwound from the bobbin as the string is pulled;
- an electric power generator having a rotor wherein the rotor is mechanically coupled to the bobbin;
- and
- a retraction circuit, wherein the retraction circuit uses the electric power generator as a motor to retract the string.
2 more elements
Dependencies are inferred from the claim text.