US 6,983,776 B2 · Structurally supported resilient tire with bias ply carcass

Abstract

A resilient tire that supports a load without internal air pressure includes a ground contacting tread portion and sidewall portions extending radially inward from said tread portion and anchored in bead portions. A bias ply carcass extends between the beads to support the sidewalls. A reinforced annular band is disposed radially inward of the tread portion. The band comprises an elastomeric shear layer at a radially outer side of the bias ply carcass and a membrane adhered to a radially outward side of the elastomeric shear layer. Each of the bias ply and membrane has a longitudinal tensile modulus sufficiently greater than the shear modulus of the shear layer so that when under load the ground contacting portion of the tire deforms to a flat contact region through shear strain in the shear layer while maintaining constant the length of the membranes.

Claims19

Dependent claims

A structurally supported resilient tire, comprising a ground contacting tread portion and sidewall portions extending radially inward from said tread portion and anchored in bead portions for securing the tire to a wheel, the tire further comprising:

a carcass ply having at least two layers extending between the bead portions and including parallel reinforcing cords oriented relative to the tire equatorial plane at an angle greater than about 10° and less than about 45°, the cords of said at least two layers being mutually oblique;
an elastomeric shear layer disposed radially outward of said reinforced ply;
and
a membrane adhered to the radially outward extent of said elastomeric shear layer, wherein said membrane and a portion of said carcass ply disposed radially inward of said shear layer each have a longitudinal tensile modulus greater than the shear modulus of said shear layer.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/319,772Filed 13 Dec 2002 · continuation in part

Priority

10 Dec 1999

Published

US 2003/0121581 A13 Jul 2003

Granted

10 Jan 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

B60C 17/00
Tyres characterised by means enabling restricted operation in damaged or deflated condition
B60C 7/22
Non-inflatable or solid tyres: having inlays other than for increasing resiliency, e.g. for armouring
B60C 9/06
The reinforcing cords of each carcass ply arranged in a substantially parallel relationship: the cords extend diagonally from bead to bead and run…
Y10T 152/1018
Casing construction: embedded

Family

PCT/US99/29366Parent of this continuation-in-part · filed 10 Dec 1999

PCT/US99/29366Parent of this continuation · filed 10 Dec 1999

PCT/US01/12481Parent of this continuation · filed 16 Apr 2001

Application10/081,571Parent of this continuation-in-part · filed 22 Feb 2002

US 2003/0121581 A1Pre-grant publication · published 3 Jul 2003

US 6,769,465 B2Parent of this continuation-in-part · filed 3 Aug 2004

Application10/081,571Parent of this continuation

PCT/US01/12481Parent of this continuation-in-part

US 2002/0124929 A1Published application

US 6,983,776 B2This patent

From the US filing history. Foreign family members aren’t listed.

Structurally supported resilient tire with bias ply carcass

Life of this patent

Structurally supported resilient tire with bias ply carcass

Life of this patent

Abstract

Claims19