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Locking doorknob which recognizes a finger print

  • US 6,374,652 B1
  • Filed: 10/18/1999
  • Issued: 04/23/2002
  • Est. Priority Date: 08/20/1999
  • Status: Expired due to Fees
First Claim
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1. A locking doorknob which recognizes a fingerprint and unlocks a door upon recognition of the fingerprint, comprising:

  • a detecting sensor of a fingerprint for measuring a fingerprint of a user, said sensor having a length of wire attached; and

    a door-lock operation shaft, having a portion that receives and encases a portion of said sensor, including the length of wire, said door-lock operation shaft being adapted to receive a door handle, whereby said sensor is encased within said portion of said shaft, the door becoming unlocked whenever the user grips the door handle and the measured fingerprint is recognized.

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