Process for recycling used tires

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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73146, 156 87, 156 97, 156124, 156129, 156154, 15624419, 15624423, 15624424, 157 13, 264 36, 264 401, 264278, 346 33F, 356347, 358106, 358347, B60C 2100, B29C 3500

Patent

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047311363

ABSTRACT:
The present process allows recycling used tires which are at present considered to be no longer suitable for restructuring according to known processes.
According to the invention a preliminary control is carried out, also by scanning by means of a laser, to assess the seriousness of the internal ruptures and deformations due to impacts or other causes, discarding tires which are too damaged, while the thread and the metallic belts of the remaining tires which can be used are removed therefrom by scraping, the entire tire assembly being reconstructed, by vulcanizing before mounting the tread, and checking again with the laser to detect bubbles or other defects correcting the defects, obtaining a perfect assembly (FIG. 25) on which the tread which is vulcanized again, is lastly mounted.

REFERENCES:
patent: 2421097 (1947-05-01), Lakso
patent: 3154985 (1964-11-01), Hermanns
patent: 4036677 (1977-07-01), Marangoni
patent: 4202394 (1980-05-01), van der Burg
patent: 4258776 (1981-03-01), Walters et al.
patent: 4392745 (1983-07-01), Wright et al.
patent: 4415013 (1983-11-01), Vine
patent: 4424088 (1984-01-01), Durie
patent: 4447197 (1984-05-01), Bartley et al.
patent: 4490197 (1984-12-01), Bajer
patent: 4506981 (1985-03-01), Hoff, Jr.

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