发明名称 Air gap pipe
摘要 An air gap pipe and a method for forming the same are provided. The air gap pipe includes a non-linear outer pipe and an inner pipe of identical configuration disposed concentrically within the outer pipe. The inner pipe is supported by resilient dimples in the outer pipe. The outer pipe is placed in a condition for receiving the inner pipe by longitudinally cutting the outer pipe in half with a pre-programmed plasma arc or laser cutting apparatus. The two halves of the outer pipe are secured together to provide vents, if necessary, for selective dissipation of heat.
申请公布号 US4619292(A) 申请公布日期 1986.10.28
申请号 US19850696311 申请日期 1985.01.30
申请人 APX GROUP, INC. 发明人 HARWOOD, JON W.
分类号 F01N13/08;F01N13/14;F01N13/18;(IPC1-7):F16L9/18 主分类号 F01N13/08
代理机构 代理人
主权项
地址