发明名称 Mechanical counter
摘要 <p>A mechanical counting device for actuating a plurality of output devices, the device comprising: linear indexing means adapted to count a plurality of actuating signals and to cause actuation of the output devices when a predetermined number of actuating signals for each output device has been received, wherein the mechanical counting device is adapted to cause actuation of a particular device when a different predetermined number of actuating signals has been received such that the output devices are sequentially actuable.</p>
申请公布号 GB2478998(B) 申请公布日期 2015.11.18
申请号 GB20100005149 申请日期 2010.03.26
申请人 PETROWELL LIMITED 发明人 COLIN SMITH;DANIEL GEORGE PURKIS
分类号 E21B34/14;E21B21/10;E21B23/00 主分类号 E21B34/14
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