Plastic article or earthenware shaping or treating: apparatus – Dough divider type including trap chamber – Rotating trap chamber pickup
Patent
1974-07-31
1976-01-13
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Dough divider type including trap chamber
Rotating trap chamber pickup
425 52, 249 65, 249115, B29C 100, B29C 500, B29F 100, B29H 504, B29H 518
Patent
active
039320880
ABSTRACT:
A flexible annular core for the production of hollow toroidal rubber shells, particularly pneumatic tires, composed of a pair of bead portions, each of which is composed of beads, a reinforcing layer folded back so as to enclose the beads, and elastomer layers covering the reinforcing layer, and a flexible shell portion composed of the reinforcing layer covered with the elastomer layers and extending across the bead portions. The bead portion of said flexible annular core is composed of the reinforcing layer and the elastomer layer adhered with each other. The flexible shell portion of said core is composed of the reinforcing layer and the elastomer layer not adhered with each other.
REFERENCES:
patent: 2724425 (1955-11-01), Ostling
patent: 2937406 (1960-05-01), Toddy
patent: 3396221 (1968-08-01), Balle et al.
patent: 3459849 (1969-08-01), De Ronde
patent: 3525783 (1970-08-01), Prikkel
patent: 3761047 (1973-09-01), Mao
patent: 3843292 (1974-10-01), Kitamoto et al.
Harada Jumei
Matsunaga Tsutomu
Migita Tetsuhiko
Tsukamoto Kenji
Bridgestone Tire Company Limited
Flint, Jr. J. Howard
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