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US 2003/0205306 A1Published application
Air no air elastomeric tire
OwnerRichard A. Steinkeinventor
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OwnerRichard A. Steinkeinventor
Estimating the term…
An elastomeric tire for mounting onto a rim that is manufactured by casting or molding methods to include an interior arch shaped cavity that is centered under the tire tread to have at least one hundred forty (140) degrees and not more than one hundred seventy (170) degrees of arc, and with the cavity arch duplicated around the tire exterior, below the tire tread. A uniform tire wall thickness is provided that is selected for a particular anticipated load as the tire will carry, with the tire side wall ends maintained at the rim aligned ends, supporting the load carried by the tire in compression, and with the tire, at atmospheric pressure, providing ride and wear characteristics that are comparable to a pressurized pneumatic tire carrying a like load, and which tire of the invention interior arch shaped cavity can be pressurized to add to its inherent load supporting character to safely support even greater loads.
An elastomeric tire comprising, a tire casing formed by casting methods from an elastomeric material to have a continuous arch shaped interior cavity with the arc of said interior arch shaped cavity centered between end portions of said tire casing and including a tire casing outer portion that has a same arc as the arc of said interior arch shaped cavity, and said interior arch shaped cavity and said tire casing outer portion have a like uniform arc of from one hundred forty (140) to one hundred seventy (170) degrees, with said tire casing having a uniform thickness across said arches that is selected for a particular anticipated load as said tire will support with said inner arch shaped cavity at atmospheric pressure;
The elastomeric tire as recited in claim 14, wherein the tire casing is formed from an isocyanate and polyol as a chain extender that are combined together as sprays directed into a spin casting apparatus wherein the tire is formed.
Dependencies are inferred from the claim text.