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US 6,279,631 B1Granted
Low pressure tire
AssigneePrimex Marketing, Inc.
InventorWilliam E. Tuggle
Life of this patent
Estimating the term…
Abstract
A low pressure tire including a torus of flexible, substantially inelastic material. The material will not deform at a temperature of about 225° F. The torus includes an inner diameter surface for engaging a tire supporting rim and an outer diameter surface for contacting a support surface. The torus can flatten under a load to facilitate movement of the tire over soft or irregular support surfaces. A sealable opening permits the inflation and deflation of the torus.
Claims27
A low pressure tire, comprising:
- a torus of flexible, substantially inelastic material, wherein the material will not deform at temperature of about 225° F., the torus includes an inner diameter surface for engaging a tire supporting rim and an outer diameter surface for contacting a support surface, wherein the torus flattens under a load to facilitate movement of the tire over soft or irregular support surfaces;
- and
- a sealable opening for inflating and deflating the torus.
A tire and wheel combination, comprising:
- a low pressure tire comprising a torus of flexible, substantially inelastic material, wherein the material will not deform at temperature of about 225° F., the torus includes an inner diameter surface for engaging a tire supporting rim and an outer diameter surface for contacting a support surface, wherein the torus flattens under a load to facilitate movement of the tire over soft or irregular support surfaces, and a sealable opening for inflating and deflating the torus;
- and
- a tire supporting rim comprising a cylindrical center section for engaging the inner diameter surface of the tire, a pair of support flanges axially extending from opposite sides of the center section for engaging the tire as it flattens under a load.
Dependencies are inferred from the claim text.