Plastic article or earthenware shaping or treating: apparatus – Reshaping – resizing or vulcanizing means for tire – tire... – Sectional female mold including locking or clamping assembly...
Patent
1984-01-11
1985-05-07
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Reshaping, resizing or vulcanizing means for tire, tire...
Sectional female mold including locking or clamping assembly...
425 40, 425 46, B29H 502
Patent
active
045155410
ABSTRACT:
The subject matter of the present invention concerns presses for vulcanizing vehicle-wheel tires and in particular, those presses provided with a centripetal-type mold. For the purpose of optional heating of the sectors of the mold while avoiding heat-dispersion, heating-fluid losses, or any lowering of the temperature during the moving periods of the mold, there is provided, in the body of each sector, a network of channels that are connected, for example, through flexible tubing, to networks of the other adjacent sectors, in such a way as to realize a closed circuit with regard to the outside ambient, within which circuit the heating-fluid is permanently caused to circulate.
REFERENCES:
patent: 2147081 (1939-02-01), Beckman
patent: 3713929 (1973-01-01), Bottasso et al.
patent: 3868203 (1975-02-01), Turk
patent: 3910735 (1975-10-01), Caretta
patent: 4116595 (1978-09-01), Fike et al.
Flint, Jr. J. Howard
Societa Pneumatici Pirelli
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