B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/184
B29D 30/04 (2006.01) B60C 5/00 (2006.01) B60C 7/10 (2006.01)
Patent
CA 1302030
SYNTACTIC FOAM TIRE INSERTS FOR FLAT- PROOF TIRES AND APPARATUS FOR MANUFACTURING A PORTION THEREOF ABSTRACT OF THE DISCLOSURE The invention is a flexible, pressurized closed cell, syntactic foam tire insert designed to make tires relatively flat-proof, and an apparatus for making a portion of said insert. The tire insert is comprised of a plurality of preformed elastomeric spheres compressed and molded together into the configuration of the interior of a tire casing, or a segment thereof. The elastomeric spheres are pressure molded from a castable plastic resin to form a hollow, thin-walled, seamless, pressurized, elastomeric sphere. The elastomeric spheres are coated with a liquid resin to fill any voids between said elastomeric spheres after they are compressed, and to bond said elastomeric spheres together when cured. The pressurized elastomeric spheres are manufac- tured in an apparatus that simultaneously rotates the mold about two perpendicular axes of said spheres to provide a uniform, thin-walled sphere.
502285
Gowling Lafleur Henderson Llp
Shoner Douglas
LandOfFree
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