Bar code configuration and method of molding

Details Bar code configuration and method of molding Bar code configuration and method of molding

G - Physics

06

K

152/73, 18/99, 3

G06K 7/14 (2006.01) B29C 59/00 (2006.01) B29C 71/02 (2006.01) G06K 19/06 (2006.01)

Patent

CA 1238414

ABSTRACT OF THE DISCLOSURE BAR CODE CONFIGURATION AND METHOD OF MOLDING A bar code configuration which may be molded in the sidewall of a tire and has even surface portions and uneven surface portions for selectively reflecting light from a light source toward a receiving sensor to define bars of a bar code. The uneven surface portions may have grooves or ribs with a sawtooth cross section and sloped faces for reflecting light to a receiving sensor at an angle to the sidewall surface. The bar code con figuration for tires molded in a particular mold may be provided by an insert fastened to the mold and having even surfaces and uneven surfaces at the inner mold face to mold the even surface portions and uneven surface por- tions of the bar code configuration in the tire sidewall as the tire is being vulcanized. By changing the insert the bar code configuration can be changed to provide dif- ferent information about the tire.

475031

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