B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 30/04 (2006.01)
Patent
CA 2172465
The present invention relates to fills for pneumatic tire casings. A preferred embodiment of the present invention is directed to novel and unobvious method of manufacturing an elastomeric fill for a pneumatic tire casing and in a novel and unobvious method of fitting the fill into the casing to provide a soft-core flat-proof tire. More specifically, the preferred embodiment of the present invention contemplates extruding and molding strips of elastomer to predetermined dimensions to accommodate various sizes of tire casings. The strips of elastomer which can accommodate a variety of different tire casings are then subsequently shipped to remote locations, such as mines, to be installed into a predetermined size of tire casing as required. The elastomer can be extruded and molded into large flat sheets and shipped to the remote location where slitting machines can be employed to dimension the side edges to interfit the tire casing in increasing and decreasing widths as the tire casing dimension requires.
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