Precure tread for a new tire, and retread tires

Details Precure tread for a new tire, and retread tires Precure tread for a new tire, and retread tires

1989-03-28

1994-01-04

Woodard, Joye L.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209D, 156 87, 156 96, B60C 1106

Patent

active

052752186

ABSTRACT:
A precure tread for a tire has surface grooves facing a tread face, rear grooves facing a crown portion of a base tire, and a passage for communication between the rear grooves to atmosphere. The groove bottom of the rear grooves is located at a higher level than a groove bottom of the surface groove in the radial direction. The tire durability can be considerably improved when this precure tread is applied to a new tire or a retread tire.

REFERENCES:
patent: 2960138 (1960-11-01), Chiodo
patent: 2966936 (1961-01-01), Schelkmann
patent: 3115919 (1963-12-01), Roberts
patent: 3455753 (1969-07-01), Schelkmann
patent: 4664166 (1987-05-01), Benisti

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