Tire and wheel combination

• US 3,866,652 A
• Filed: 05/03/1974
• Issued: 02/18/1975
• Est. Priority Date: 05/03/1974
• Status: Expired due to Term

• Current Assignee: Uniroyal Goodrich Licensing Services Incorporated (Compagnie Generale DES Etablissements Michelin SCA)
• Original Assignee: Shamim Ahmad
• Inventors: Ahmad, Shamim
• Primary Examiner(s): Ward, Jr., Robert S.
• Assistant Examiner(s): Keen, D. W.
• Application Number:
  US05/466,736
• Time in Patent Office: 291 Days
• Field of Search: 301/39R 152/310,311,312,313,314,317,318
• US Class Current: 152/317
• CPC Class Codes: B60C 7/101 Tyre casings enclosing a distinct core, e.g. foam enclosed chambers defined by a distinct core B60C7/121
• CPC Class Codes: Y10T 152/10378 Casing enclosed core
• CPC Class Codes: Y10T 152/10396 Removable
• CPC Class Codes: Y10T 152/10441 Balls

Abstract

A resilient tire and wheel assembly in which a pneumatic type vehicle tire has the cavity between the tire and wheel on which it is mounted filled with a solid, resilient elastomeric composition containing hollow spheres having diameters in the range of 10 to 300 microns.

Claims

1. An assembly comprising:

a. pneumatic tire;

b. a vehicle wheel having a tire-mounting rim with said tire mounted on said rim forming a cavity between the interior of the tire and rim; and

, c. said cavity filled with a solid, resilient composition comprising a mixture of;

1. an elastomeric material;

2. hollow spheres having diameters ranging from 10 to 300 microns, with said spheres dispersed throughout the elastomeric material and the elastomer cured, thereby forming a solid filling of said cavity.

2. The assembly in claim 1 wherein the elastomer consists essentially of a two-component polyurethane system which, when said components are combined and cured, makes a resilient solid material having a durometer of about 40 on the Shore A scale.

3. The assembly in claim 2 wherein the hollow spheres are made of glass having a true partial density in the range of 0.200 to 0.350 g./cc. and particle diameters ranging from 10 to 300 microns, with an average wall thickness in the range of 1 to 2 microns.

4. The assembly in claim 1 wherein the hollow spheres are made of ceramic materials.

5. The assembly in claim 1 wherein the hollow spheres occupy from about 10 to 25 percent of the volume of the cavity.

6. The assembly in claim 1 wherein the hollow spheres occupy from about 10 to about 50 percent of the volume of the cavity.