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1. (WO2013149223) TIRE TREADS WITH REDUCED UNDERTREAD THICKNESS

Pub. No.:    WO/2013/149223    International Application No.:    PCT/US2013/034736
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Sun Mar 31 00:59:59 CET 2013
IPC: B60C 11/13
Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
MICHELIN RECHERCHE ET TECHNIQUE S.A.
COLBY, E. Bruce
TSIHLAS, Dimitri G.
IKONOMOV, Metodi L.
CHANDLER, Michael C.
WIDMYER, Michael
ZARAK, Cesar E.
Inventors: COLBY, E. Bruce
TSIHLAS, Dimitri G.
IKONOMOV, Metodi L.
CHANDLER, Michael C.
WIDMYER, Michael
ZARAK, Cesar E.
Title: TIRE TREADS WITH REDUCED UNDERTREAD THICKNESS
Abstract:
The invention comprises a tire tread, and tire, and a method of forming a tire having the tire tread. Particular embodiments of the tire tread have a tread thickness bounded by a top side and a bottom side, and a groove extending into the tread thickness from the top side and terminating within the tread thickness at a groove bottom. A thickness of the tread extends from the groove bottom to a protruding portion of the bottom side of the tread below the groove bottom such that portions of the bottom side adjacent the protruding portion are recessed within the tread thickness. Such tire tread further includes a plurality of strengthening members forming protrusions extending into the groove from the groove bottom and from at least one side of the pair of opposing groove sides, the plurality of strengthening members being arranged along a length of the groove.