Patent ID: 9422790
Filing Date: 2016-08-23
CPC Classification: E21B

Claim Text:
1. A safety valve, comprising: a housing defining an internal flow path; a flapper coupled to the housing and movable between an open position and a closed position; a flow tube movably disposed within the internal flow path between an extended position, where the flow tube retains the flapper in the open position, and a retracted position, where the flapper is able to pivot to the closed position; a lockout rod positioned within a drilled passage defined in a wall of the housing and in fluid communication with the internal flow path via a lockout activation port, the lockout rod being movable from a stored position to a deployed position, wherein the flow tube is retained in the extended position when the lockout rod is in the deployed position; and a lockout ratchet element arranged within the drilled passage to allow the lockout rod to move to the deployed position and retain the lockout rod in the deployed position.