MECHANICAL COUNTER Russian patent published in 2015 - IPC E21B23/08 E21B34/14 

FIELD: measurement equipment.

SUBSTANCE: group of inventions relates to mining industry and can be used to bring into action several downhole tools. A mechanical counting device includes a linear consecutive indexing device that can calculate a variety of signals for bringing into action and bring into action output devices when assuming the specified number of signals for bringing into action for each output device. With that, the mechanical counting device has a possibility of bringing into action a certain output device when assuming the different specified number of signals for bringing into action so that output devices are brought into action in series.

EFFECT: improvement of reliability of the proposed device.

14 cl, 11 dwg