Resilient tires and wheels – Tires – resilient – Anti-skid devices
Reexamination Certificate
2005-01-18
2005-01-18
Maki, Steven D. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Anti-skid devices
C152S902000
Reexamination Certificate
active
06843290
ABSTRACT:
A tire comprising a tread having a tread pattern having a preferred running direction R. The tread pattern is formed by a plurality of blocks arranged in at least three rows of generally circumferential orientation, the axially outermost rows defining the edges of the tread enclosing at least one intermediate row of blocks. Each block has a block length L and a contact face delimiting, with the continuations of the lateral faces of the block, a complementary volume V with a virtual cylinder C, C′ enveloping the block. The center of gravity G of the volume V is situated at a distance DGfrom the mid-plane M, M′ of the block dividing the block into two substantially equal volumes. The tire is characterized in that:for each of the blocks of the edges of the tread, the distance DGis not zero and negative and less, in terms of absolute value, than a third of the length L;for each of the blocks of the intermediate rows, the distance DGis not zero and positive and less, in terms of absolute value, than a third of the length L,it being understood, by convention, that a distance DGis positive when the center of gravity G is in front of the mid-plane M, M′ of the block in question.
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Lopez José Merino
Parmentier Jean-Francois
Burns Doane Swecker & Mathis L.L.P.
Maki Steven D.
Michelin & Recherche et Technique S.A.
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