发明名称 METHOD FOR MAKING A GAS METER AND GAS METER OBTAINED BY SAID METHOD
摘要 The invention concerns a method for making a gas meter (38) comprising sever al measuring chambers with deformable membranes and a central body (40) definin g several communication ducts (48-56) ensuring respectively the gas supply fro m outside said body into the measuring chambers and its discharge from said central body, said method consisting in performing an injection moulding of said central body then in removing it from the mould, characterised in that the method consists in removing from the mould all the communication ducts ( 48- 56) in one single operation.
申请公布号 CA2332288(A1) 申请公布日期 1999.11.25
申请号 CA19992332288 申请日期 1999.04.29
申请人 SCHLUMBERGER INDUSTRIES S.A. 发明人 DUMAY, MICHEL
分类号 G01F3/22;(IPC1-7):G01F3/22 主分类号 G01F3/22
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