06220719 is referenced by 68 patents and cites 14 patents.

A renewable energy flashlight comprises a housing and a barrel located within the housing. A wire coil wraps around the barrel, between the barrel and the housing. A magnet oscillates within the barrel when the flashlight is shaken, generating an alternating current in the coil. Two springs at either end of the barrel cause the magnet to recoil when the magnet strikes the springs. As an alternative, rebound magnets oriented to repel the charging magnet may be installed within the barrel at either end, to cause the magnet to recoil from the ends. An electronics assembly within the housing includes a capacitor for storing charge, a rectifier connected to the capacitor, and means for conducting current flowing in the coil to the rectifier, to charge the capacitor. An LED is connected to the capacitor by means of a switch, and lights up when the switch is switched on.

Title
Renewable energy flashlight
Application Number
9/359087
Publication Number
6220719 (B1)
Application Date
July 22, 1999
Publication Date
April 24, 2001
Inventor
Douglass Anderson Springer
Aurora
CO, US
James Victor Platt
Lafayette
CO, US
Steven Robert Vetorino
Fort Lupton
CO, US
Agent
Macheledt Bales & Johnson
US
Agent
Jennifer L Bales
US
Assignee
Applied Innovative Technologies
CO, US
IPC
F21L 4/08
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