Invention Grant
US07673533B2 Sampling head and sampling device for intact vehicle paint chips in forensic applications
失效
采样头和取样装置,用于完整的汽车油漆芯片的法医应用
- Patent Title: Sampling head and sampling device for intact vehicle paint chips in forensic applications
- Patent Title (中): 采样头和取样装置,用于完整的汽车油漆芯片的法医应用
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Application No.: US11730591Application Date: 2007-04-03
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Publication No.: US07673533B2Publication Date: 2010-03-09
- Inventor: Wei-Tun Chang
- Applicant: Wei-Tun Chang
- Agency: Rosenberg, Klein & Lee
- Main IPC: G01M1/00
- IPC: G01M1/00

Abstract:
The present invention discloses a sampling head and a sampling device for intact vehicle paint chips for forensic applications, and the sampling head includes: a body being a non-metal cylindrical body and having a circular groove at the external periphery of the body, and an installing groove disposed axially at a front end of the body; at least one O-ring sheathed onto the circular groove and protruded slightly from the surface of the body; a metal head, embedded and fixed axially into the installing groove, and having a small portion protruded from the front distal surface of the body, and the metal head front distal surface has a groove; and a plastic layer, installed in a groove of the metal head, and an external lateral surface of the plastic layer is protruded from the front distal surface of the metal head to form a gluing surface for collecting a sample. In a sampling process, the sampling head is placed into a pneumatic sample pushing device, and the gun muzzle is attached onto the sampling paint position, and the internal compressed air in the air chamber injects the sampling head at the surface of a vehicle, and uses an instant dynamic force to touch and destroy the paint at the surface of a steel plate, plastic steel or plastic substrate of a car body to separate the substrate, and thus the sampling head will contain the removed sample containing the intact paint chip.
Public/Granted literature
- US20080245164A1 Sampling head and sampling device for intact vehicle paint chips in forensic applications Public/Granted day:2008-10-09
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