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21.发明授权Drill cuttings conveying apparatus with flexible duct for improved ground clearance 失效钻头切割输送设备带有柔性管道，以提高离地间隙
公开(公告)号：US4444280A
公开(公告)日：1984-04-24
申请号：US332616
申请日：1981-12-21
Applicant: D. Franklin Howeth
Inventor： D. Franklin Howeth
CPC classification number: B01D45/04 , E21B21/015 , E21B21/07
Abstract: A drill cuttings conveying head for a portable drill rig includes a flexible tubular duct portion which is operable in conjunction with extension and retraction cylinders for the head to bend the duct portion sufficiently to permit retraction of the head to provide suitable ground clearance for transport of the rig. An actuator for bending and straightening the flexible duct portion is interconnected by way of a pressure fluid control circuit with the head extension and retraction cylinders for movement of the duct portion in conjunction with the extension and retraction of the conveying head.
Abstract translation: 用于便携式钻机的钻屑输送头包括柔性管状管道部分，该管状管道部分可与用于头部的伸出和缩回缸一起操作，以足以弯曲管道部分，以允许头部缩回以提供合适的离地间隙，以便运输 钻机 用于弯曲和矫直柔性管道部分的致动器通过压力流体控制回路相互连接，头部延伸部分和后退圆柱体用于与输送头的伸出和缩回一起运动管道部分。
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公开(公告)号：US4440243A
公开(公告)日：1984-04-03
申请号：US330134
申请日：1981-12-14
Applicant: D. Franklin Howeth
Inventor： D. Franklin Howeth
CPC classification number: B01D45/04 , E21B21/015 , E21B21/07
Abstract: A drill cuttings conveying head member having a tubular duct portion which includes a movable sidewall forming a gate operable to be pivoted into a position blocking the flow passage in the duct portion and diverting the flowstream out of the conveying head during wet drilling conditions. A lever mechanism is connected to the gate and is operable to bias the gate in either the open or closed position.
Abstract translation: 具有管状管道部分的钻屑输送头部件，其包括形成闸门的可移动侧壁，所述可移动侧壁可操作以枢转到阻挡管道部分中的流动通道的位置，并且在湿钻井条件期间使流动流离开输送头。 杠杆机构连接到门，并且可操作以在打开或关闭位置偏置门。
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