发明名称 Post assembly for buried valve having an above ground actuator
摘要 An improved post assembly for operating an inaccessible valve having upper and lower connecting shaft portions within respective upper and lower column sections wherein each of the shaft portions and column sections are connected by breakaway means enabling the parts to be separated by impact, and replaceable, at a level above grade, and also having an attachment between the lower connecting shaft and a valve shaft.
申请公布号 US4708160(A) 申请公布日期 1987.11.24
申请号 US19860899721 申请日期 1986.08.25
申请人 AMSTED INDUSTRIES INCORPORATED 发明人 SHARP, STEVE M.;HOLSTROM, JOHN R.;GAIN, JR., LORAND H.;BALLUN, JOHN V.
分类号 F16K31/46;F16K17/40;F16K31/44;(IPC1-7):F16L5/00 主分类号 F16K31/46
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