Coating apparatus – With cutting – punching or tearing of work
Reexamination Certificate
2009-09-28
2011-12-13
Maki, Steven D (Department: 1747)
Coating apparatus
With cutting, punching or tearing of work
C118S211000, C118S212000, C118S216000, C152S152100, C152S209500, C152SDIG020, C156S406400
Reexamination Certificate
active
08074595
ABSTRACT:
A method of providing an extruded tire tread (T) with anti-static properties. In this method, a pin (10) is coated with an electrically conductive material (M). The coated pin (10) pierces the tire tread (T) to form an opening (12) of the desired depth and then is withdrawn. During withdrawal of the pin (10), the material (M) remains in the pierced opening (12) so that a conductive body (14) is formed in the tire tread (T). The pin (10) can then be re-coated with the material (M) and the cycle repeated to produce a plurality of conductive bodies (14) in the tire tread (T).
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Bridgestone Americas Tire Operations, LLC
Maki Steven D
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