Resilient tires and wheels – Tires – resilient – With wear indicating feature
Reexamination Certificate
2005-04-26
2005-04-26
Maki, Steven D. (Department: 1733)
Resilient tires and wheels
Tires, resilient
With wear indicating feature
C152S209500, C152S209170, C152SDIG003
Reexamination Certificate
active
06883567
ABSTRACT:
The invention provides a measuring method of a tread wear amount by using a pneumatic tire in which a mark portion is formed on a part of a tread surface, the mark portion changing its surface shape as wear progresses. Image data of the mark portion is detected, the detected data is inputted in processor means, and then the tread wear amount is determined by use of either ratio referential data of the mark portion inputted in advance and corresponding to the wear amounts of the tread surface, or a formula inputted in advance for computing the wear amount, thereby facilitating automatic measurement of the tread wear amount.
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Maki Steven D.
Rader & Fishman & Grauer, PLLC
The Yokohama Rubber Co. Ltd.
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