Plastic article or earthenware shaping or treating: apparatus – Means treating shaped work
Patent
1977-07-05
1978-09-05
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Means treating shaped work
425325, 425363, 425446, B29H 501, B29C 2500, B29H 528
Patent
active
041116283
ABSTRACT:
Apparatus for vulcanizing a continuous length of flexible material comprising a closed chamber having material receiving input and exit ports while maintaining vulcanization pressure and temperature within the chamber, and a pair of rolls mounted on parallel spaced-apart horizontal axes within the chamber such that a portion of the material passing into the chamber and carried by the rolls is self-supporting and free of any contact with either roll surface, the surface of at least one of the rolls being contoured such as to position helical convolutions of the material thereon and cause the material to move in a substantially helical path from the entry port to the exit port while it is being vulcanized within the chamber. A drive motor is connected to one of the rolls to effect rotation of the roll and movement of the material through the chamber.
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patent: 3492385 (1970-01-01), Simunic
patent: 3673650 (1972-07-01), Gerutti
Flint, Jr. J. Howard
Germain L. A.
The Goodyear Tire & Rubber Company
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