Method of foreseeing and controlling tread wearing in a pneumatic tire and a related pneumatic tire
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United States of America Patent
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Aug 26, 2003
Issued Date -
N/A
app pub date -
Sep 29, 2000
filing date -
Oct 9, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of foreseeing and controlling wearing in the tread of a tire based on the use of cuts of a limited depth (in the order of tenth parts of one millimeter) formed on the external surface of the tread, in the thickness of the elastomeric material. The cut is preferably made by a laser beam. Rotation of the tire on a road or on any other friction surface enables both the uneven wearing of the tread, highlighted by localized spots devoid of cuts, to be quickly verified by inspecting the maintenance state of said cuts, and the wear rate of the tread, which can be drawn from calculation of the time elapsing between the disappearance of two groups of cuts of different depth.
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