Resilient tires and wheels – Tires – resilient – Anti-skid devices
Reexamination Certificate
2006-11-21
2006-11-21
Maki, Steven D. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Anti-skid devices
C152S209180, C152SDIG020
Reexamination Certificate
active
07137424
ABSTRACT:
A winter tire containing a central vertical groove which extends along a tire equator C, and rib portions6aand6bhaving sipes S are formed on the opposite sides of the central vertical groove. At a groove edge line3E of the central vertical groove, reference pitches P each comprises a main portion extending from an outermost origin N1in a tire axial direction to a terminal end N2closest to the tire equator, and an auxiliary portion3bhaving a length in the tire circumferential direction smaller than that of the main portion3aand passes through said origin N1from said terminal end N2, and the reference pitches P are repeated in the tire circumferential direction into a zigzag configuration. A tire circumferential direction length of the main portion is 60% or more of a tire circumferential direction length of the reference pitch P.
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Machine translation for Europe 713790.
Machine translation for Japan 10-100617.
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 43063/1985 (Laid-Open No. 159203/1986) (Bridgestone Corp.) Oct. 2, 1986.
Maki Steven D.
Sumitomo Rubber Industries Ltd.
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