Resilient tires and wheels – Tires – resilient – Cushion and pneumatic combined
Reexamination Certificate
1999-06-29
2001-05-01
Knable, Gregory L. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Cushion and pneumatic combined
C152S165000, C152S317000, C152S320000, C152S512000
Reexamination Certificate
active
06223795
ABSTRACT:
BACKGROUND OF THE INVENTION
Regular motorcycle and automobile tires do not have an inner tube. When a pointed object pierced the tire of a motor vehicle, air does not immediately leak out. However, if the motor vehicle keeps running for a certain length of time after piercing of a pointed object through one tire thereof, the tire may explode, causing a catastrophe. In order to eliminate this problem, “high-speed” tires are developed. A “high-speed” tire is made of elastic material of high density. When pierced by a pointed object, the tire does not leak immediately, and the car driver has sufficient time to repair the tire. However, because this structure of tire does not leak immediately when pierced by a pointed object, the car driver may not find the problem before an accident occurs. U.S. patent application Ser. No. 09/193,232, entitled “Vehicle inner tube with protective breaker means”, teaches a measure to eliminate the aforesaid problem. The vehicle inner tube according to U.S. patent application Ser. No. 09/193,232 is functional, however its structure is complicated, and its manufacturing cost is high.
SUMMARY OF THE INVENTION
The present invention has been accomplished under the circumstances in view. According to one embodiment of the present invention, the vehicle inner tube comprises an inflatable tube formed of a plurality of air balls, the inflatable tube having an air chamber defined on the inside, two sets of curved grooves spirally arranged at two opposite side walls thereof around an air chamber, and a plurality of insertion slots spirally arranged around the curved grooves through the two opposite side walls, and a plurality of breaker members and side bumper members respectively mounted in the insertion slots and curved grooves at the inflatable tube, the breaker members and side bumper members each including a flexible base pad formed of a big number of air balls, and a breaker adhered to the base pad at one side. In an alternate form of the present invention, the curved grooves and the side bumper members are eliminated. In another alternate form of the present invention, the insertion slots and the breaker members are eliminated.
REFERENCES:
patent: 1061204 (1913-05-01), Smith et al.
patent: 1444892 (1923-02-01), Westgate et al.
patent: 1499793 (1924-07-01), Taylor
patent: 1808404 (1931-06-01), Freerksen
patent: 3256123 (1966-06-01), Hart
patent: 5031679 (1991-07-01), Shoner
Knable Gregory L.
Rosenberg , Klein & Lee
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