The Goodyear & Tire Rubber Company

Other

Kiyoshi Ueyoko

Ramendra Nath Majumdar

Ceyhan Celik

James Gregory Gillick

James Michael Hart

Leonard James Reiter

Robert John Boehlefeld

John Joseph Slivka

Badal Das

Roel Domingo Villanueva

Luis Antonio Cabrera

Frank Anthony Kmiecik

Clarence B Alsobrook

Bret Herbert Marts

Loyda Mercedes Yerashunas

Roel Domingo Villaneuva

Ii Michael William Schellenberger

Jimmy Lee Richards

Andrew Robert Ondo

David Charles Wagner

Christopher Ryan Self

Ii Clarence Byrd Alsobrook

A pneumatic tire is disclosed having two annular bead portions having a bead core. A carcass extends between the bead portions through sidewall portions and a tread portion, wherein the carcass includes at least two axially inner plies which extend down from the tread and axially inward of the bead core, said at least two axially inner plies being wound around the bead core forming respective turn-ups, each turnup being located axially outward of the bead core. The carcass further includes a first axially outer ply which extends down from the tread towards the bead core and positioned axially outward of the bead core, wherein at least one of the axially outer plies is formed from reinforcements having a higher break strength than the reinforcements of the axially inner plies.

Aircraft tire

A pneumatic tire having a carcass and a belt reinforcing structure wherein the belt reinforcing structure is a composite belt structure having at least one radially inner spiral layer and at least one zigzag belt reinforcing structure located radially outward of said spiral layer. The zigzag belt width is preferably narrower than the spiral layer.

Reduced weight aircraft tire

A pneumatic radial aircraft tire is described having a B/A ranging between 60-70%. The tire may further optionally include a tire bead portion having a Ra/Fr1 relationship which ranges from about 1 to about 2.1. The tire may further optionally include a SW/TS ratio which ranges from about 0.1 to about 0.5, wherein SW is the chafer gauge at area A, TS is the total sidewall rubber gauge at area A, wherein A is defined as the region in the sidewall that has a lower radial endpoint defined by the point of contact between the flange and the tire at inflated, unloaded condition, and an upper radial endpoint Adefined by the tire wheel flange point of contact when the tire is at inflated, and at 200% rated load.

Aircraft radial tire

A tire having a modified geodesic belt is described. The ideal geodesic belt path is modified to select the centerline belt angle and to avoid excessive build up of the belt at the belt edges. The method includes the step of calculating the minimum three dimensional distance from one belt edge to the other belt edge preferably using dynamic successive approximation.

Pneumatic tire with geodesic belt

A pneumatic tire having a carcass and a belt reinforcing structure wherein the belt reinforcing structure is a composite belt structure having at least one radially inner spiral layer and at least one zigzag belt reinforcing structure located radially outward of said spiral layer. The zigzag belt width is preferably wider than the spiral layer.

A pneumatic tire and a method of making a tire are provided. The tire includes a tire tread, a tire layer, and a barrier layer. The tire layer is circumferentially disposed inwardly of the tire tread and includes a first end and a second end situated adjacent each other to define a butt joint. The barrier layer includes a first end and a second end, a portion of the first end of the barrier layer overlaps the second end by about 1.5 cm or more to define a lap joint, and where the first end of the barrier layer is received between and extends beyond the butt joint such that the first end of the tire layer is sandwiched between the lap joint.

Pneumatic tire with barrier layer and method of making the same

A pneumatic radial aircraft tire is described having a B/A ranging between 60-70%, wherein B is the width of the tire between the wheel flange, and A is the inflated tire width under rated pressure. The tire may further optionally include a tire bead portion having a Ra/Fr1 relationship which ranges from about 1 to about 2.1, wherein: Ra is the tire heel radius at uninflated and in an new and unused condition, and Fr1 is the wheel flange elliptical radius at the heel section of the tire. The tire may further optionally include a SW/TS ratio which ranges from about 0.1 to about 0.5, wherein SW is the chafer gauge at area A, TS is the total sidewall rubber gauge at area A, wherein A is defined as the region in the sidewall that has a lower radial endpoint defined by the point of contact between the flange and the tire at inflated, unloaded condition, and an upper radial endpoint Ah defined by the tire wheel flange point of contact when the tire is at inflated, and at 100% rated load.

A pneumatic tire for mounting on an aircraft wheel has a radial carcass and flipper reinforcement. The tire has a pair of bead cores, at least two or more axially inner plies greater than or equal to, extending between the bead cores, a crown reinforcement radially outward of the plies having a maximum belt width BW, and at least one flipper reinforcement wrapped around each bead core. Each bead core has a radially extending cross sectional length B. Each flipper reinforcement extends along an inner surface of the bead core to the axially inner end located in an area that is between 0.01 BW to 0.25 BW as measured from the belt edge toward a centerline of the tire preferably in the range of 0.05 BW to 0.125 BW and wherein one flipper reinforcement has an axially outer end lower than the top of the bead core.

Radial aircraft tire with flipper reinforcement

A pneumatic tire having a carcass and a belt reinforcing structure wherein the belt reinforcing structure is a composite belt structure having at least one pair of radially outer zigzag layers and at least one spirally wound belt layer with cords inclined at an inclination of 5 degrees or less relative to the tire's centerplane and located radially inward of and adjacent to the at least two radially outer belt layers. The at least two radially outer zigzag belt layers have cords inclined at 5 degrees to 30 degrees relative to the tire's centerplane and extending in alternation to turnaround points at each lateral edge of the belt layer. At each turnaround point the cords are folded or preferably bent to change direction across the crown of the carcass thus forming a zigzag cord path.

Tire having a composite belt structure

A method of forming a composite belt structure for a tire is disclosed. The composite belt structure has cord reinforced layers including at least two radially outer zigzag belt layers. The cords per inch in the shoulder portion are greater than the cords per inch in the central portion as measured centered on the centerplane of the belt structure. The method discloses the steps of applying a multicord reinforced strip having a strip width SW onto a rotating crowned building drum, the strip being wound in a zigzag configuration to form at least two zigzag layers, wherein the crowned drum has non-overlapping portions of the strip placed in a central portion and extending in alternation to a pair of shoulder portions having portions of the strips overlapping to form belt layers.

Pneumatic tire with composite belt structure

A pneumatic radial ply tirefor use on aircraft has a radial reinforced carcasshaving at least one axially inner plyA,B,C andD of textile cordswound around a pair of bead cores. The improved bead structurehas a flipperhaving an axially inner leg Land axially outer leg L. The ends L, Lof the flippersare above the bead core height Band below the apex A of an elastomeric stripsatisfying the relation B&#x3c;L&#x3c;0.7D and B&#x3c;L&#x3c;0.7D. Additionally, the tire carcasshas at least one axially outer plyE,F of textile cordsextending from beadto beadalong the turn-upsA,B,C andD of the axially inner pliesA,B,C andD. The pliesare closely spaced along the natural ply path.

Aircraft tire with improved bead structure

A pneumatic radial ply tirefor use on aircraft has a radial reinforced carcasshaving at least one axially inner plyA,B,C andD of textile cordswound around a pair of bead cores. The improved bead structurehas a flipperhaving an axially inner leg Land axially outer leg L. The ends L, Lof the flippersare above the bead core height Band below the apex A of an elastomeric stripsatisfying the relation B&#x3c;L&#x3c;0.7 D and B&#x3c;L&#x3c;0.7 D. Additionally, the tire carcasshas at least one axially outer plyE,F of textile cordsextending from beadto beadalong the turn-upsA,B,C andD of the axially inner pliesA,B,C andD. The pliesare closely spaced along the natural ply path.

A pneumatic radial ply tire for use on aircraft has a radial reinforced carcass having at least one axially inner ply A, B, C and D of textile cords wound around a pair of bead cores . The improved bead structure has a flipper having an axially inner leg L and axially outer leg L . The ends L , L of the flippers are above the bead core height B and below the apex A of an elastomeric strip satisfying the relation B <L <0.7D and B <L <0.7D. Additionally, the tire carcass has at least one axially outer ply E, F of textile cords extending from bead to bead along the turn-ups A, B, C and D of the axially inner plies A, B, C and D. The plies are closely spaced along the natural ply path.

Growing community of inventors

Copley, OH, United States of America

Kiyoshi Ueyoko