Snow Traction Enhancement for Winter Tires

High-performance snow tire with improved grip on a variety of winter road conditions like snow, ice, and slush. The tire has an alternating pattern block and longitudinal groove layout. The pattern blocks are staggered left to right: left shoulder, left secondary, center, right secondary, right shoulder. Longitudinal grooves are between adjacent blocks. This configuration allows better snow and slush evacuation compared to traditional snow tire layouts. The alternating block and groove sequence improves traction on packed snow and slush, while the staggered blocks aid in snow shedding.

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A snow tire design with a specific pattern configuration to improve grip and braking performance on snow and ice. The tire has distinct left, middle, and right shoulder blocks connected by secondary blocks. The left and right shoulders have zigzag grooves, the middle block has an oblique groove, and the secondary blocks have oblique grooves. All blocks have transverse curved steel sheets. This pattern configuration provides enhanced grip and braking force on snow and ice compared to traditional snow tire patterns. It reduces potential safety hazards like sideslip.

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All terrain (AT) tire with improved snow traction performance that balances off-road capability, wet road grip, and snow performance. The tire has a tread with circumferential and transverse grooves dividing it into blocks. The blocks have steel grooves with inconsistent depths. The steel groove depths are labeled a, b, and c. The depths satisfy a relationship where a < b < c. This arrangement provides rigidity for off-road and wet performance in the shallower grooves (a and b) while deeper grooves (c) enhance snow traction.

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An SUV tire pattern with improved traction, steering, and handling on wet and snowy roads while maintaining stability and longevity. The pattern has multiple block and groove features arranged in specific layouts on the inner, middle, and outer tread areas. This configuration enhances contact area, rigidity, drainage, and controllability compared to traditional tire patterns. The inner shoulder block provides additional biting edges. The inner middle block balances rigidity. The central block is wider for stability. The outer middle block aids steering. The outer shoulder grooves increase drainage. This optimized pattern balances wet/snow performance with overall tire performance.

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A specialized snow tire design to improve snow traction, low temperature resistance, and snow evacuation compared to conventional snow tires. The tire has a unique tread pattern with specific block arrangements and grooves. The crown has an inner block group and outer block group. The shoulder has blocks inside a wide groove. The inner crown blocks are triangular with diagonal wavy grooves. The outer blocks have diagonal grooves. The shoulder blocks are trapezoidal. The crown and shoulder blocks have vertical and horizontal wavy patterns. This specialized tread pattern provides better snow grip, snow evacuation, and low temperature traction compared to standard snow tire tread designs.

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Winter tire rubber composition provides improved grip on ice and reduced rolling resistance compared to conventional winter tire compounds. The composition contains specific ratios of 3 types of rubber with different glass transition temperatures, high amounts of low Tg plasticizers, and high levels of silica filler. The rubber types are low Tg polybutadiene, medium Tg polybutadiene, and polyisoprene. The silica provides grip and rolling resistance benefits. The low Tg plasticizers keep the rubber flexible at low temperatures. The composition is free of styrene-butadiene rubber.

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Tire tread design with sipes that maintain performance as the tire wears. The tread has sipes with three different depths, forming three levels in the tread blocks. The shallowest sipes are at the top level and the deepest sipes are at the bottom level. This allows the sipes to maintain their biting edges and void volume as the tread wears down, improving wet and snow traction over the life of the tire. The staggered depth levels also prevent damage or tearing when the mold is removed from the tread during manufacturing.

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Winter tire tread design with improved snow traction in both new and worn states. The tread has three radial zones with different rubber compositions. The outer zone has low sulfur and accelerator amounts. The inner zone has high sulfur and accelerator amounts. The middle zone has intermediate sulfur and accelerator amounts. This composition gradient provides the best balance of new and worn snow traction. The tire has a better initial snow grip and maintains grip as it wears compared to conventional tires.

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Winter tire tread formulation with good cold-weather performance and excellent traction on wet, snow-covered, and icy roads. The tread uses a combination of high and low Tg elastomers with silica and carbon black fillers. The elastomers are solution SBR, emulsion SBR, and cis-polybutadiene rubber. The silica has reduced coupling agent levels and increased silanization times to improve hysteresis and abrasion resistance. The tread can also contain vegetable oil extension of the elastomers for further cold weather flexibility.

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Tire design for improved traction on snow. The tire has shoulder grooves with protrusions that extend radially from the tire surface. The protrusions have a U-shape, with two arms on the shoulder blocks and a connecting arm in the groove. This configuration improves snow traction by providing additional biting edges when the tire contacts the snow surface.

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A tire with zigzag sipes in the tread that allows for better traction on snow and ice when the tire is worn. The zigzag sipes have a changing amplitude from the sipe opening to the maximum depth, with the maximum amplitude not at the opening. This ensures that as the tire wears, the exposed sipe edges still provide biting edges for traction.

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A pneumatic tire design that balances traction on snowy surfaces with dry road performance. The tire has a specific sipe configuration where sipe lengths are controlled on certain areas of the tire. This prevents excessive sipe deformation and maintains land rigidity on dry surfaces while allowing sipes to widen for improved snow traction.

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A tire design with improved traction on snow and ice without sacrificing wet performance. The tire has circumferential grooves and lugs like a typical tire but adds a narrow circumferential groove within one of the land areas. This narrow groove has bends and an inclination opposite to the main grooves. This creates a zigzag shape with long and short sections. The zigzag groove configuration allows increasing the total groove area to enhance snow traction while avoiding the reduction in land rigidity that hurts ice performance.

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A pneumatic tire design that improves off-road performance (snow/mud) and durability compared to conventional tires. The tire has stepped buttress regions on the inner edge of the tread. These stepped regions have staggered heights, with the highest step closest to the tread edge. The stepped buttress design provides better traction in snow/mud and prevents stones from getting trapped in the grooves.

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A pneumatic tire with improved resistance to heel and toe wear while maintaining traction on snowy and muddy roads. The tire has alternating shoulder blocks with inwardly inclined portions on each side. The inclines on one side are deeper than the other side. The blocks are separated by paired shoulder slits. This configuration balances block rigidity across the slits to reduce uneven wear.

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Radial truck tire pattern with improved grip and snow/mud clearing performance for winter conditions. The pattern has a center block surrounded by shoulder blocks, connected by horizontal and vertical grooves. The horizontal first grooves separate the center and shoulder blocks, while the vertical second grooves connect them. This creates a zigzag pattern between the blocks. The broken-line grooves increase the total groove length for better snow/mud disposal. The separated blocks increase contact area for better grip. The pattern is repeated around the tire tread to provide overall grip and snow/mud shedding.

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All-season and winter tire tread patterns with serrated leading and trailing edges for improved traction and grip on snow and ice. The tread has symmetrically arranged block elements in the center and shoulders. The leading edges of some block elements have serrated ramps, while the trailing edges have curved convex domes. These serrated and domed features provide biting edges that enhance traction when the tire is accelerating or decelerating on snow or ice. The serrated leading edges create biting edges as the tire contacts the ground, while the curved trailing edges help the tire release from the surface without sticking.

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Rubber formulation for tire treads that improves snow performance compared to conventional compositions without sacrificing chipping resistance. The rubber composition contains specified amounts of natural rubber, butadiene rubber, filler, sulfur, vulcanization accelerator, and oil.

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Tire with improved snow and wear performance by having notched shoulder blocks with stepped walls. The tire has shoulder land portions with blocks having notches connecting the edge and buttress portions. The notches have stepped walls in cross-section. This provides the rigidity for good wear resistance while also improving snow performance via the snow discharge effect.

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A tire design that improves traction on snow and ice without sacrificing dry and wet road performance. The tire has an optimized lug geometry with bent portions to enhance snow and ice grip. The lugs have bent edges that extend in the tire's circumferential direction. This increases the lug length and allows more snow to enter the groove for improved traction on snow and ice. The bent edge portions also increase the rigidity of the center land area to reduce deformation under load for better dry and wet road performance.

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