The Goodyear & Tire Rubber Company

Anne Therese Peronnet-Paquin

Daniel Paul Luc Marie Hinque

Filomeno Gennaro Corvasce

Giorgio Agostini

Stephan Rodewald

Andreas Frantzen

Carolin Anna Welter

Yannick Raymond Georges Haegel

Mingliang Du

Marc Weydert

Frank Schmitz

Gilles Bonnet

Matthieu Pingenat

Jeannot Frieden

Joseph John Kulig

Christian Kaes

Gauthier Piret

Mercedes Maria Diaz-Scharfe

Laurent Luigi Domenico Colantonio

Laurent Colantonio

Walter Dale Allen

Jean Luc Dheur

Massimo Di Giacomo Russo

Frank Philpott

Dinesh Chandra

Michael Spiro Markoff

Benjamin Isaiah Garn

William Alain Talbot

Georges Koster

Tony Raymond Gery Deroo

Michel Meunier

Betul Buehler

Daniel Vojtko

Jungmee Kang

Edwin Deerenberg

Léon Jean Mathias Gregorius

David Gilbert Wieczorek

Jacques Camille Nevouet

Alain Emile François Roesgen

Damien Albert Ghislain Schreurs

Yannick Haegel

Luigi Domenico Colantonio

Damien Albert Schreurs

Mercedes Diaz-Scharfe

A self-inflating tire assembly includes an air tube mounted within a tire sidewall groove. The air tube is in contacting engagement with opposite angled groove surfaces surrounding the air tube. A segment of the air tube is flattened from an expanded diameter to a flat diameter by bending and compression of the groove in a rolling tire footprint to force air evacuated from the flattened segment along a tube air passageway. The sidewall groove extends into an annular, axially extending, sidewall surface such as an axially oriented surface of a tire chafer protrusion located in non-contacting relationship with the rim. The air tube is extruded from a rubber composition, the rubber composition comprising: a diene based rubber; from 0.25 to 5 parts by weight, per 100 parts by weight of rubber (phr), of a self-lubrication agent capable of migrating from the rubber composition to the groove surface and disposing on the groove surface as a liquid; and from 1 to 15 parts by weight, per 100 parts by weight of rubber (phr), of a vulcanization modifier for use in the second rubber composition include α,ω-bis(N,N′-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides.

Air maintenance tire

A self-inflating tire assembly includes an air tube mounted within a tire sidewall groove. The air tube is in contacting engagement with opposite angled groove surfaces surrounding the air tube. A segment of the air tube is flattened from an expanded diameter to a flat diameter by bending and compression of the groove in a rolling tire footprint to force air evacuated from the flattened segment along a tube air passageway. The sidewall groove extends into an annular, axially extending, sidewall surface such as an axially oriented surface of a tire chafer protrusion located in non-contacting relationship with the rim. The opposite groove surfaces comprise a rubber composition, the rubber composition comprising: a diene based rubber; from 0.25 to 5 parts by weight, per 100 parts by weight of rubber (phr), of a self-lubrication agent capable of migrating from the rubber composition to the groove surface and disposing on the groove surface as a liquid; and from 1 to 15 parts by weight, per 100 parts by weight of rubber (phr), of a vulcanization modifier for use in the second rubber composition include &#x3b1;,&#x3c9;-bis(N,N'-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides.

The present invention is directed to a pneumatic tire comprising a sidewall component, the sidewall component including an air passageway extending at least partially about the circumference of the tire, the air passageway surrounded by and in fluid communication with a surface comprising a rubber composition, the rubber composition comprising: a diene based rubber; from 0.25 to 5 parts by weight, per 100 parts by weight of rubber (phr), of a self-lubrication agent capable of migrating from the rubber composition to the groove surface and disposing on the groove surface as a liquid; and from 1 to 15 parts by weight, per 100 parts by weight of rubber (phr), of a vulcanization modifier for use in the second rubber composition include &#x3b1;,&#x3c9;-bis(N,N'-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides.

A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to a regulator device. The regulator device regulates the inlet air flow to the air tube and the outlet air flow to the tire cavity.

Self inflating tire with pressure regulator

A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to a inlet control valve. The inlet control valve regulates the inlet air flow to the air tube and the outlet air flow to the tire cavity.

Self-inflating tire and pressure regulator

A pneumatic tire comprises a sidewall, an annular tire cavity, and a hydraulic actuator connected to the sidewall inside the annular tire cavity, wherein the hydraulic actuator has a flexible reservoir for containing a hydraulic fluid, and an opening allowing hydraulic fluid to enter the reservoir and to exit the reservoir. Further, the hydraulic actuator comprises a lever arm connected to the sidewall and holding the flexible reservoir between the lever arm and the sidewall, wherein the lever arm comprises a fluid channel allowing hydraulic fluid to flow from the reservoir through the opening out of the lever arm.

Pneumatic tire comprising a hydraulic engine

Self-inflating tire with inlet control valve

A pneumatic tire assembly includes a pneumatic tire having an inner cavity and an inner surface at least partially defining the inner cavity, a rigid structure for facilitating operation of the tire assembly, and a docking base for securing the rigid structure to the inner surface of the inner cavity. The docking base has been integrally bonded to the inner surface during curing of the pneumatic tire. The docking base has a shape formed by a mold attached to the inner surface of the inner cavity during curing of the pneumatic tire. The mold subsequently is removed thereby resulting in the docking base integrally secured to the inner surface.

Securing to a pneumatic tire

A pneumatic tire includes a carcass, a tread, a belt reinforcing structure located radially outward of the carcass and radially inward of the tread, and an insert located in each sidewall. Each insert comprises a plurality of separate rib members. The carcass includes a reinforcing ply structure extending between a pair of bead portions and a pair of sidewalls. Each sidewall is located radially outward of one of the pair of bead portions.

Self-supporting pneumatic tire

A pneumatic runflat tire including at least one sidewall insert, the at least one sidewall insert including a heterogenous rubber compound comprising first rubber and second rubber composition phases, wherein the second rubber phase is further vulcanizable.

Runflat tire

A pneumatic tire including a circumferential tread, two spaced apart beads, and sidewalls connecting said beads and tread, wherein said tire sidewall contains at least one internal annular sidewall insert including at least two annular segments, the at least two annular segments including first and second adjacent annular segments;

Tire with sidewall insert

This invention relates to the preparation of a multi-layered rubber composite, said composite and a tire having a component prepared thereby. The multi-layered rubber composite is composed of at least two individual rubber compositions configured as at least three parallel aligned alternating rubber layers, wherein each rubber layer extends through the rubber composite thickness from one side to the other opposing side. The multi-layered rubber composite is prepared by co-extruding at least two individual rubber compositions, via an individual extruder for each rubber composition, to an internal cavity of a former. Said former is comprised of an internal cavity which contains a sequence of flow deflectors and channels for guiding the at least two individual rubber compositions to form said multi-layered rubber composite in a single manufacturing step.

Preparation of co-extruded multi-layered rubber composite and use as component of a tire

Disclosed is a pneumatic run-flat tire. The tire has at least one carcass reinforcing ply, at least one pair of sidewall wedge inserts, and a belt reinforcing structure. The belt reinforcing structure is formed from at least a pair of cross cord belt reinforcing plies. Located radially outward of the carcass reinforcing ply is a porous elastomeric layer. The porous elastomeric layer has a porosity level of 20 to 80%, preferably 40&#x2013;70%, of the total volume of the porous elastomeric layer.

Pneumatic run-flat tire with porous elastomeric layer

A pneumatic radial ply tire () having a tread (), a carcass () with two sidewalls (), a radial ply structure (), and a belt structure () located radially between the tread and the radial ply structure. Each sidewall is reinforced with at least one wedge insert () which comprises alternating regions () of flexible material and layers (, 124) of stiffer material. The layer () of stiffer material constrain the lateral expansion of the wedge insert () during runflat operation to provide good riding comfort during normal inflation operation and good sidewall reinforcement during runflat operation.

Variable-stiffness wedge insert for runflat tires

Growing community of inventors

Luxembourg, Luxembourg

Anne Therese Peronnet-Paquin