System for detecting injection holding material

Details System for detecting injection holding material System for detecting injection holding material

2005-09-13

2005-09-13

Porta, David (Department: 2878)

Radiant energy

Radiation tracer methods

C250S461100, C264S408000

Reexamination Certificate

active

06943348

ABSTRACT:
A system is provided for detecting a substantially transparent injection molding material. The injection molding material contains a fluorescent colorant, which is invisible when not exposed to ultraviolet light, but becomes visible when exposed to ultraviolet light. A method of detecting the injection molding material involves exposing the injection molding material to ultraviolet light and examining the material during exposure.

REFERENCES:
patent: 4236181 (1980-11-01), Shibata et al.
patent: 4632773 (1986-12-01), Neefe
patent: 5656210 (1997-08-01), Hill et al.
patent: 5888424 (1999-03-01), Ebnesajjad et al.
patent: 6207077 (2001-03-01), Burnell-Jones

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