Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8151840 | Method of manufacturing a new airless or pneumatic tire having a reinforced rubber structure and a polyurethane tread A method of manufacturing a new tire having a reinforced rubber structure and a polyurethane tread. ... | 04/10/2012 |
| 8104523 | Pneumatic tire and process for its manufacture A pneumatic tire has a carcass structure having at least one carcass ply and at least one annual reinforcing structure associated with the carcass ply, a tread band made of an elastomeric material at a radially outer position with respect to the carcass structure, a... | 01/31/2012 |
| 8100157 | Rubber composition for tire and pneumatic tire using the same A rubber composition for a tire, in which a specific tackifier is compounded, and tackiness and various physical properties are improved, compared with compounding a petroleum resin or a terpene resin, is provided. The rubber composition for a tire comprising an alk... | 01/24/2012 |
| 8028731 | Tire for vehicles A pneumatic tire has a carcass structure having at least one carcass ply and at least one annular reinforcing structure associated with the carcass ply, a pair of axially opposite side walls on the carcass structure, a belt structure arranged at a radially outer pos... | 10/04/2011 |
| 7987880 | Rubber composition for tire base tread The rubber composition for a tire base tread includes a rubber component containing not less than 15% by weight of a terminal-modified diene rubber having a number average molecular weight prior to modification of 150000 to 400000, a filler, and a compound (vulcaniz... | 08/02/2011 |
| 7980279 | Heavy duty tire A heavy duty tire is vulcanized in a segmented mold having a tread molding surface defined by circumferentially arranged segments. The tread portion is molded by the tread molding surface during vulcanization of the tire, wherein the stretch of the belt layer in the... | 07/19/2011 |
| 7918256 | Heavy duty tire having ground contacting face at 70% and 100% maximum tire load A heavy-duty tire having a tread portion improved in the shoulder wear is disclosed. Under the maximum load condition[W100], the tread portion has a ground contacting face G[W100] having circumferential lengths L97[W100] and L70[W100] at specific axial positions. Un... | 04/05/2011 |
| 7900667 | Tread for a tire A tire tread and a tire comprising a tire tread, the tire tread having a rubber composition based on a diene elastomer; more than 50 phr of an inorganic filler as reinforcing filler; between 2 and 15 phr of an inorganic filler/diene elastomer coupling agent; between... | 03/08/2011 |
| 7886788 | Pneumatic tire with noise damper A pneumatic tire with a noise damper made of a spongelike multi-cellular material is disclosed. The noise damper is divided into small dampers to improve the high-speed durability of the tire. The noise damper is provided with a water-impermeable outer coating to pr... | 02/15/2011 |
| 7882874 | Plasticizing system for a rubber composition A plasticizing system used for plasticizing a diene rubber composition is based on an MES or TDAE oil and on C5 fraction/vinylaromatic copolymer resin, in particular a copolymer of a C5 fraction and of styrene resin. A rubber composition exhibi... | 02/08/2011 |
| 7762296 | Agricultural vehicle tire This invention provides a tire for agricultural vehicles that employs a tread design having a flattened contact surface across the width and a plurality of curved lugs that alternately extend from each sidewall to a location nearly adjacent to the opposing side wall... | 07/27/2010 |
| 7762295 | Rubber composition for tire and tire using the same A rubber composition for a tire and a tire made therefrom which possesses excellent grip performance and abrasion resistance, said rubber composition containing a diene rubber and an aromatic vinyl polymer having a glass transition temperature at most 10° C., the a... | 07/27/2010 |
| 7743807 | Tread rubber composition for color smoke tires, tire comprising the same, and method of manufacturing the same A tread rubber composition for tires, including a sublimation dye that is activated by heat generated by frictional contact with a road surface to generate smoke having various colors at a wavelength of about 39-76×10−6 cm (390 nm to 760 nm) in a frequ... | 06/29/2010 |
| 7703489 | Rubber composition for base tread and pneumatic tire The present invention provides a rubber composition for a base tread, which improves balance in low heat generating properties and steering stability, and a pneumatic tire using the same. Specifically, the present invention provides a rubber composition for a base t... | 04/27/2010 |
| 7640957 | Tire with rubber tread highly loaded with a combination of filler reinforcement and oil This invention relates to high performance tires designed for high vehicular speeds having thin treads with a maximum thickness of about three centimeters with a running surface which is comprised of a rubber composition which is highly loaded with a combination of ... | 01/05/2010 |
| 7543616 | Heavy duty tire with tread portion having three longitudinal main grooves A heavy duty tire has a tread portion 2 which is divided into five inner, intermediate and outer rib-like land portions R1, R2, R2, R3 and R3. The inner rib-like land portion R1 is virtudally divided into half regions... | 06/09/2009 |
| 7493927 | Rubber composition The present invention provides a rubber composition, in which reaction efficiency of the silane coupling agent in kneading is improved, generation of bubbles is suppressed, abrasion resistance is improved and rolling resistance is reduced. Specifically, the rubber c... | 02/24/2009 |
| 7469731 | Heavy-duty tire having ground-contact surface shape In a ground-contact surface shape of a tire, when a tangent angle formed between an axial direction of the tire and a tangent X at each point P on a profile line of the tire is defined as θ, a tangent angle θ1 in a ground-contact end point Pd is 25° or sma... | 12/30/2008 |
| 7441572 | Pneumatic tire having a tread containing immiscible rubber blend and silica The invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, expressed as parts by weight per 100 parts by weight of elastomer (phr), (A) 60 to 95 phr of solution-polymerized styrene-butadiene rubber wi... | 10/28/2008 |
| 7431061 | Rubber composition for a tire tread A cross-linkable or cross-linked rubber composition which is usable to constitute a tire tread having improved wear resistance, to such a tread and to a tire incorporating this tread. The rubber composition is particularly applicable to tires of passenger-vehicle ty... | 10/07/2008 |
| 7406990 | Runflat tire with sidewall component containing high strength glass bubbles A pneumatic runflat tire comprising a sidewall component comprising a rubber composition comprising at least one diene based elastomer and from about 1 to about 40 phr of glass bubbles having a crush strength of at least 10,000 psi as measured by ASTM D3102-78 in gl... | 08/05/2008 |
| 7404423 | Pneumatic tire with tread including blocks having approximately equal aspect ratios In a pneumatic tire, a block unit includes a center block and side blocks separated by a communication groove. Aspect ratios of the center block and the side blocks are approximately the same. The center block and the side blocks are arranged such that a longitudina... | 07/29/2008 |
| 7398810 | Tire having an element or covering attached to a surface thereof A tire is provided, on a surface thereof, an applicaiton having a top layer exposed to the air and a bottom layer in contact with the tire. The top layer can be a rigid element and/or a marking covering, or a device for measuring or monitoring the tire. The bottom l... | 07/15/2008 |
| 7392832 | Pneumatic tire having tread blocks with skewed walls A pneumatic tire with an improved balance between noise reduction and hydroplaning resistance as the tread wears. The tread of the pneumatic tire includes skewed tread blocks having walls that, as the tread wears, change the character of the lateral and circumferent... | 07/01/2008 |
| 7378465 | Tire components having improved modulus A tire component including a tire tread that comprises a vulcanized rubber, a rubber filler, and a modified rubber, where the modified rubber i) contains pendent or functional groups that contain carboxylic acid or anhydride groups, ii) has pendently grafted thereto... | 05/27/2008 |
| 7367369 | Aircraft tire The invention relates to an aircraft tire with a tread having a running surface of a rubber composition which contains elastomers of which a major portion is a specialized cis 1,4-polybutadiene elastomer and a minor portion is cis 1,4-polyisoprene rubber and which c... | 05/06/2008 |
| 7368506 | Rubber composition and pneumatic tire using same A peroxide-crosslinked rubber composition having a superior anti-blooming property of a crosslinking agent and a high hardness containing (A) more than 60 parts by weight but not more than 95 parts by weight of rubber selected from NR, IR, SBR, BR, EPM, EPDM, silico... | 05/06/2008 |
| 7363951 | Wear-adaptable running tread A tire tread includes a running surface intended to be in contact with the roadway during travel. The running surface has a plurality of first cut-outs of a depth less than the thickness of the tread and defining tread pattern elements of a height less than the tota... | 04/29/2008 |
| 7360568 | Tire having narrowing sipes A tire having sipes is provided. The tire includes a circumferential tread configured with at least one rib bound by at least one groove. The rib has a plurality of sipes that extend from the groove into the rib wherein one or more of the sipes narrow in a direction... | 04/22/2008 |
| 7347238 | Pneumatic tire with tread including chamfer portions A pneumatic tire having improved wet performance without sacrificing steering stability. A pair of central circumferential main grooves 14 and a pair of side circumferential main grooves 16 are arranged on a tread 12, to obtain a fundamentally h... | 03/25/2008 |
| 7347237 | Rubber composition containing resinous nanoparticle This invention relates to a tread rubber composition for tires with the addition of crosslinked resinous nanoparticles having a high glass transition temperature (Tg) into elastomeric base polymers. The invention demonstrates greatly improved handling per... | 03/25/2008 |
| 7337815 | Tire with tread of rubber composition containing diverse carbon blacks The invention relates to a tire with a component composed of a rubber composition containing at least two diverse carbon blacks. In one aspect such tire is a heavy tire and such component is a tread for a heavy tire which contains at least two diverse carbon blacks ... | 03/04/2008 |
| 7329459 | Polymer-based reinforcement material and tire cord compositions and methods of production thereof The subject matter herein is directed to a polymer-based cap ply reinforcement material that has a shrinkage component, wherein the reinforcement material is treated such that the shrinkage component increases at least about 10% over a reference shrinkage component ... | 02/12/2008 |
| 7326748 | Thermoplastic composition The subject invention discloses a thermoplastic composition which is comprised of a blend of a thermoplastic resin and an elastomer, wherein said thermoplastic resin is selected from the group consisting of polyphenylene ether and polystyrene, wherein said elastomer... | 02/05/2008 |
| 7319123 | Use of sulfur containing initiators for anionic polymerization of monomers An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting f... | 01/15/2008 |
| 7307121 | Silica containing rubber composition This invention discloses a method for preparing rubber compositions that exhibit unique combinations of properties that are desirable for tire tread applications for enhanced snow/ice and wet traction, low rolling resistance and increased treadwear performance in co... | 12/11/2007 |
| 7299843 | Pneumatic tire crown reinforcement A tire comprising a crown extended by two respective sidewalls and two respective beads, a carcass structure anchored in each side of the tire in said beads, said crown comprising at least one reinforcing ply having parallel reinforcements oriented at an angle α re... | 11/27/2007 |
| 7291237 | Method of making tire having wear indicators A tire in which a tire manufacturer has determined the tractive capacity at numerous levels of tread wear, the tire having at least one visual warning indicator located at a tread depth corresponding to a percentage loss of tractive capacity. Also, a method of makin... | 11/06/2007 |
| 7280951 | Method of making finite element model of tire having fine groove A method of making a finite element model of a tire is disclosed. The tire is provided in a tread portion with a fine groove having a dead end including at least the bottom. The tread portion is divided into elements so that the elements include first elements on on... | 10/09/2007 |
| 7276550 | Reinforced silica/elastomer composite This invention is based upon the discovery that elongated silica has superior characteristics for reinforcing rubbery elastomers as compared to conventional silica. More specifically, elongated silica provides a higher level of reinforcement for elastomers at the sa... | 10/02/2007 |
