Pneumatic vehicle tire tread, especially radial-ply tire for trucks
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United States of America Patent
Stats
-
Dec 23, 1986
Grant Date -
N/A
app pub date -
Dec 10, 1984
filing date -
Dec 23, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The tire comprises a tread with central grooves between exterior grooves. Both types of grooves extend in a zig-zag shape in the circumferential direction and define ribs between them. Each one of the central grooves is bounded by sidewalls which define two opposite sidewall sections between angled regions of the central grooves. The two sidewall sections alternate from one angled region to the other in the circumferential direction of the tread. A first sidewall section of the two opposite sidewall sections extends at least approximately normally to the tread and a second sidewall section of the two sidewall sections comprises two sidewall portions extending substantially normally to the tread and an interconnecting flank portion therebetween which extends at an inclination in the range of 20.degree. to 60.degree. with respect to a line perpendicular to the tread. The angled regions are located between consecutive groove sections and each one of the angled regions comprises a protruding or salient angled region and a receding or reentrant angled region each of which, in turn, is constituted by a first corner section extending substantially normally to the tread and a second corner section extending at an inclination towards the base of the groove and forming two substantially triangularly shaped portion which converge to a common point in the direction towards the base of the groove.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SEMPERIT REIFEN AKTIENGESELLSCHAFT | WIENERSDORFER STRASSE 20-24 A-2514 TRAISKIRCHEN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Stelzer, Josef | Vienna, AT | 4 | 82 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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