发明名称 Zone control valve
摘要 In a zone valve, an improved arrangement for connecting the operator unit to the valve unit is provided. A one piece wire locking spring carried by the operator unit in conjunction with a groove on the valve unit valve plug provides a snap connection.
申请公布号 US4553733(A) 申请公布日期 1985.11.19
申请号 US19830458556 申请日期 1983.01.17
申请人 INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION 发明人 WEST, MICHAEL D.
分类号 G05D23/19;(IPC1-7):F16K31/00 主分类号 G05D23/19
代理机构 代理人
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