Injection moulding system for a material vulcanizable by heat

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United States of America Patent

APP PUB NO 20050191381A1
SERIAL NO

10628506

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An injection molding system for a material vulcanizable by heat comprises a mould (13, 113, 213) with molding impressions (14, 114, 214) fed from material-feeding channels (17, 19, 117, 119, 217, 219). The mould is separable into a first portion (16, 116, 216) containing first sections (17, 117, 217) of the feeding channels and a second portion (18, 118, 218) containing end sections (19, 119, 219) of the feeding channels and the molding impressions (14, 114, 214). An element (21, 121, 221) is interposed between the first and second portions of the mould after feeding of the material to the impressions and comprises first means (25, 125, 225) designed to keep the element surface (23, 123, 223) coming into contact with the first portion (16, 116, 216) to a temperature adapted to avoid vulcanization of the material in the first channel sections (17, 117, 217) and second means (26, 126, 226) for heating the opposite element surface (24, 124, 224) coming into contact with the second mould portion (18, 118, 218) to a temperature high enough to bring the material in the impressions (14, 114, 214) to a temperature suitable for vulcanization of same. Around the channels the first mould portion (16, 116, 216) extends into the second portion (18, 118, 218) so that the end sections (19, 119, 219) of the channels remaining in the second portion have a reduced length.

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Patent Owner(s)

Patent OwnerAddress
RUTIL S R L21050 LONATE CEPPINO (VARESE)

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coscia, Giovanni Antonio Varese, IT 2 1

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