Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including both heating and cooling means
Patent
1984-07-10
1985-09-10
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Including both heating and cooling means
425391, 425393, 4254031, B29C 2500
Patent
active
045403600
ABSTRACT:
A wound coil of an elastic material is formed by feeding a monofilament of elastic material over a winding coil of a coiling head onto a mandrel to form a coil. A pair of conveyors are located on opposite sides of the coil on the mandrel and define therebetween a stabilizing zone for moving the coil along the mandrel through such zone while heating and thereby stabilizing the coil. The conveyors include respective heating elements located on opposite sides of the coil and respective planar members formed of a heat transmitting material and between which the coil is fed along the mandrel. Each planar member is in contact with the coil and a respective heating element.
REFERENCES:
patent: 1522987 (1925-01-01), Turner
patent: 1534622 (1925-04-01), Wandel
patent: 2961736 (1960-11-01), Kier
patent: 3121256 (1964-02-01), Fleisher
patent: 4182738 (1980-01-01), Casaert et al.
patent: 4247271 (1981-01-01), Yonekura et al.
patent: 4318210 (1982-03-01), Foster et al.
patent: 4349490 (1982-09-01), Bos
patent: 4416601 (1983-11-01), Hasegawa et al.
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