发明名称 |
Processes for manufacturing inner tubes of the so-called puncture-proof type for vehicle wheels and similar and puncture-proof inner tubes thus obtained |
摘要 |
Inner tubes for pneumatic tires including a toric cushion made from an elastomer material having cells independent of each other. A process for manufacturing such inner tubes with a mold for preforming and vulcanizing semi-toric elements, the mold includes fingers for molding recessed cavities and an incorporated heating network, the preformed semi-toric elements having undergone a first vulcanization are then joined together and subjected to a second vulcanization in an appropriate apparatus.
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申请公布号 |
US4367109(A) |
申请公布日期 |
1983.01.04 |
申请号 |
US19800194892 |
申请日期 |
1980.10.07 |
申请人 |
HUTCHINSON-MAPA |
发明人 |
ESTRADE, ROBERT;MICHAUT, JEAN |
分类号 |
B29D23/24;B29D30/04;B60C7/12;(IPC1-7):B29H13/00;B32B31/20 |
主分类号 |
B29D23/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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