B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/179
B29D 99/00 (2010.01) B29C 33/10 (2006.01) B29C 43/02 (2006.01) B29C 43/10 (2006.01) B29C 43/36 (2006.01) B29C 43/12 (2006.01)
Patent
CA 1138161
ABSTRACT OF THE DISCLOSURE: Process of molding and vulcanizing a tire including the use of an elastic bladder whose axis of revolution coincides with that of the tire and the inflation of which gives the bladder a toroidal shape corresponding to the inside of the tire. The bladder is manufactured in a press having two shells closable on one another along abutting surfaces of the shells to define a molding chamber, and there being a core in said cham- ber, which core is formed with relief elements on its outer wall. The bladder manufacture is characterized in that vulcanizable rubber is pressed between the shells and core whereby a sleeve is produced having recessed elements in its inner face and a flash on its outer face along the abutting surfaces, and in that, after vulcanization of the sleeve, the latter is removed from the sleeve press and is inverted or turned inside out, like a sock, so that the inner face of the invertible sleeve becomes the outer face of the resulting bladder.
268648
Michelin & Cie (compagnie Generale Des Etablissements Michelin)
Robic Robic & Associes/associates
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