Patent ID: 9416628
Filing Date: 2016-08-16
CPC Classification: E21B,F16K

Claim Text:
1. An activator for a blowout preventer of a wellsite, the blowout preventer comprising rams sealingly positionable about a tubular of a wellbore at the wellsite and driven by a circuit, the activator comprising: a cylinder; a trigger valve operatively connectable between the cylinder and the circuit, the trigger valve comprising a trigger extending into the cylinder; a piston slidably positionable in the cylinder, the piston having a piston stroke extending between a retracted position with an end of the piston in non-engagement with the trigger to close the circuit and an extended position with the end of the piston in engagement with the trigger to pilot the circuit; and a timing adjuster engagable by the piston, the timing adjuster adjustably positionable about the cylinder to define the retracted position of the piston stroke whereby a length of the piston stroke is adjustably defined.