Patent ID: 9587452
Date: 2017-03-07
CPC Classifications: E21B

Claim:
1. A device for operating tools, devices or underwater equipment employed in connection with exploration and recovery of hydrocarbons, characterised in that the device comprises a hollow sleeve, where a movement mechanism comprising an inner slide and an outer slide provided with pawls, a stopper element provided with pawls and a block release element provided with a passage, in which passage at least one roller is mounted, are arranged in non-through-going recesses in the body of the hollow sleeve, the movement mechanism, the stopper element and the block release element being in contact with one another and a closed volume defined by a part of the hollow sleeve, an annular piston and an elongated hollow element, which closed volume contains a fluid, where, upon cyclic loading, in the form of pressure increases and reductions to the fluid, of the device, the outer slide of the movement mechanism will be moved relative to the stopper element and the block release element until a position where the block release element via a release pin will open up a connection between the closed volume and a number of relief recesses, whereby at least one push rod through the annular piston is activated for operating the tool or the underwater equipment.