发明名称 Casing vent security device
摘要 A casing vent security device includes an in-line section in communication with a casing vent, the in-line section having an ambient air passageway for selectively allowing ambient air to pass through the in-line section and into the vent. The device further includes a plurality of sensors disposed within the in-line section for monitoring the ambient air passing through the in-line section. The device still further includes at least one mechanism for selectively occluding the passage of ambient air into the vent upon receiving a signal from the sensors. The device provides information on the plurality of sensors and the vent.
申请公布号 US7363969(B2) 申请公布日期 2008.04.29
申请号 US20040910175 申请日期 2004.08.02
申请人 XELA INNOVATIONS, LLC 发明人 MUDERLAK KENNETH;MUDERLAK TODD J.
分类号 E21B34/02;E03B3/16;E21B47/00 主分类号 E21B34/02
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