Abstract: A seal system includes a first annular component having a radially-outer surface with a first threaded portion and a first sealing portion, wherein the first sealing portion has a first angled surface that is oriented at a first angle relative to a vertical axis. The seal system also includes a second annular component having a radially-inner surface with a second threaded portion and a second sealing portion, wherein the second sealing portion has a second angled surface that is oriented at a second angle relative to the vertical axis, and the second angle is different from the first angle. The first annular component and the second annular component are configured to threadably couple to one another via the first threaded portion and the second threaded portion and to form a metal-to-metal seal against one another via the first angled surface and the second angled surface.

Abstract: A tool catcher system that includes a housing. The housing defines a bore that receives a tool. The tool catcher system includes a plurality of ring segments that move radially inward and radially outward to selectively couple to and uncouple from the tool. A spring plate supports the plurality of ring segments. An actuator plate couples to the spring plate. A plurality of shafts couple the actuator plate to the spring plate. An actuator system moves the actuator plate and the spring plate in a first direction to release the tool.

Abstract: An inflatable packer system for an annular blowout preventer (BOP) includes an inflatable bladder configured to be positioned within a housing of the annular BOP and to inflate upon receipt of a fluid within the inflatable bladder. The inflatable bladder may be an annular structure that is configured to circumferentially surround a bore of the annular BOP.

Abstract: A leak detection system includes an annular housing that defines a bore, a constriction with the bore, and a channel extending radially-outwardly from the bore and positioned upstream of the constriction. The leak detection system also includes a sensor positioned outside of the bore and fluidly coupled to the channel, wherein the sensor is configured to detect a leaked fluid within the bore.

Abstract: An inflatable packer system for an annular blowout preventer (BOP) includes an inflatable bladder configured to be positioned within a housing of the annular BOP and to inflate upon receipt of a fluid within the inflatable bladder. The inflatable bladder may be an annular structure that is configured to circumferentially surround a bore of the annular BOP.

Abstract: An actuation assembly to actuate a component of a mineral extraction system, where the actuation assembly includes an actuator configured to generate a force in a direction, a lever assembly coupled to the actuator, where the lever assembly is configured to rotate about a fulcrum in response to application of the force, and a piston coupled to the lever assembly, where the piston is configured to move in the direction in response to rotation of the lever assembly about the fulcrum.

Abstract: A tool catcher system that includes a housing. The housing defines a bore that receives a tool. The tool catcher system includes a plurality of ring segments that move radially inward and radially outward to selectively couple to and uncouple from the tool. A spring plate supports the plurality of ring segments. An actuator plate couples to the spring plate. A plurality of shafts couple the actuator plate to the spring plate. An actuator system moves the actuator plate and the spring plate in a first direction to release the tool.

Abstract: A leak detection system includes an annular housing that defines a bore, a constriction with the bore, and a channel extending radially-outwardly from the bore and positioned upstream of the constriction. The leak detection system also includes a sensor positioned outside of the bore and fluidly coupled to the channel, wherein the sensor is configured to detect a leaked fluid within the bore.

Abstract: An actuation assembly to actuate a component of a mineral extraction system, where the actuation assembly includes an actuator configured to generate a force in a direction, a lever assembly coupled to the actuator, where the lever assembly is configured to rotate about a fulcrum in response to application of the force, and a piston coupled to the lever assembly, where the piston is configured to move in the direction in response to rotation of the lever assembly about the fulcrum.

Abstract: An assembly for a valve includes an inner cylinder, an outer cylinder circumferentially surrounding the inner cylinder, and a first bar comprising a first end portion coupled to the inner cylinder and a second end portion coupled to the inner cylinder. The second end portion extends radially outwardly through a groove extending circumferentially about a curved wall of the outer cylinder to enable the inner cylinder and the first bar to rotate relative to the outer cylinder.

Abstract: An assembly for a valve includes an inner cylinder, an outer cylinder circumferentially surrounding the inner cylinder, and a first bar comprising a first end portion coupled to the inner cylinder and a second end portion coupled to the inner cylinder. The second end portion extends radially outwardly through a groove extending circumferentially about a curved wall of the outer cylinder to enable the inner cylinder and the first bar to rotate relative to the outer cylinder.

Abstract: A linkage assembly for a tool trap of a wireline pressure control equipment (PCE) stack includes a first linkage member and a keyed shaft positioned within an opening of the first linkage member. The first linkage member and the keyed shaft are configured to rotate together to transfer a force generated by an actuator to adjust a plate of the tool trap from a closed position to an open position. One or more gaps exist within the opening between the first linkage member and the keyed shaft to enable relative motion between the first linkage member and the keyed shaft to enable the tool to drive the plate from the closed position to the open position without back driving the actuator during withdrawal of the tool across the tool trap.

Abstract: An improved rifle includes a magazine body attached to the rifle, and a base plate releasably and slidingly engaging the magazine body and forming a base of the magazine body. A release is provided to unlock the base plate when actuated by a user of the rifle. The base plate is configured to move away from the magazine body when unlocked, thereby exposing an inner chamber of the magazine body for insertion of an ammunition stripper clip thereinto.