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Recharging key based wireless device

  • US 6,943,666 B2
  • Filed: 02/15/2001
  • Issued: 09/13/2005
  • Est. Priority Date: 02/15/2001
  • Status: Expired due to Term
First Claim
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1. A key chain rechargeable device, comprising:

  • key securing structure;

    an electronic device associated with said key securing structure;

    a rechargeable battery source to power said electronic device; and

    an inductive coil to receive charging power to charge said rechargeable battery source;

    wherein said key chain rechargeable device is placed within charging range of said inductive coil when a key associated with said key securing structure is inserted in a lock device; and

    wherein said key chain rechargeable device is distinct from said key inserted in said key securing structure and adaptively attaches to a key chain.

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