Method of vulcanizing a prevulcanized tread

Details Method of vulcanizing a prevulcanized tread Method of vulcanizing a prevulcanized tread

1975-04-28

1978-08-08

Kittle, John E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

150 54B, 156 86, 156394, 156128R, B29H 1700, B29H 1737

Patent

active

041054822

ABSTRACT:
A method for retreading a tire carcass having an arcuate crown with a transversely flat, prevulcanized profiled tread comprising applying the tread to the crown of the carcass with an intermediate layer of unvulcanized bonding rubber therebetween thereby deforming the tread to conform to the crown while preventing the occlusion of air between the tread and carcass, securing an elastic, pressure-permeable fabric or elastomeric stressing belt annularly around the assembled tread and carcass and vulcanizing the intermediate layer of bonding rubber by applying heat and pressure while preventing deformation of the carcass, slippage or raised edges of the tread and uneven distribution of the bonding rubber layer. Also disclosed are a stressing belt and an autoclave structure and method of autoclave operation for use in the above-described method.

REFERENCES:
patent: 1128480 (1915-02-01), Miller
patent: 1306602 (1919-06-01), McEwen
patent: 2627644 (1953-02-01), Foster
patent: 2899534 (1959-08-01), Sjolund
patent: 2976910 (1961-03-01), Nowak
patent: 3149658 (1964-09-01), Wolfe
patent: 3325326 (1967-06-01), Schelkmann
patent: 3672009 (1972-06-01), Pike
patent: 3738893 (1973-06-01), Edler
patent: 3752719 (1973-08-01), Borden
patent: 3769121 (1973-10-01), Martin
patent: 3904459 (1975-09-01), Schelkmann
patent: 3925129 (1975-12-01), Blankenship
patent: 3933551 (1976-01-01), Brodie et al.

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