Invention Grant
- Patent Title: Apparatus and method for improved recovery of latent fingerprints
- Patent Title (中): 用于改善潜在指纹恢复的装置和方法
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Application No.: US13309934Application Date: 2011-12-02
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Publication No.: US09027259B2Publication Date: 2015-05-12
- Inventor: William Bryon Stones
- Applicant: William Bryon Stones
- Agency: Keith L. Jenkins, Registered Patent Attorney, LLC
- Agent Keith L. Jenkins
- Main IPC: F26B13/10
- IPC: F26B13/10 ; F26B21/00 ; B41K1/00 ; A61B5/117 ; G06K9/00

Abstract:
Hydrating an object bearing a latent fingerprint and then selectively drying the object leaving the fingerprint hydrated. The hydrated fingerprint is then coated with cyanoacrylate ester, preferably in a heat accelerated cyanoacrylate ester vacuum chamber. Hydrating is preferably accomplished by chilling the object below a dew point and then exposing the object to humidified air to condense a thin uniform layer of water over the object and latent fingerprint. Drying is preferably done with a vacuum. After drying reaches the preferred state, the CE is heated and coats the condensation-hydrated latent fingerprint. Preferably, the method is implemented in an automated system using one computer-controlled chamber for chilling, condensing, vacuum drying, and CE coating the latent fingerprint. The operator simply puts the object in the chamber, initiates the process by computer, and is prompted by the computer to remove the recovered latent print. Prints unrecoverable by prior art means are recovered.
Public/Granted literature
- US20120141669A1 APPARATUS AND METHOD FOR IMPROVED RECOVERY OF LATENT FINGERPRINTS Public/Granted day:2012-06-07
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