A closure is provided for a pressure vessel or pipelines that can provide quick and easy access to the interior of a pressure vessel or pipeline, and means for a pressure tight seal between the hub and door. The closure can incorporate means for mechanically fastening the door to the hub using an external split clamp ring actuated by a toggle mechanism. A locking mechanism can be provided to safeguard against unintended closure actuation, and provides a layer of redundancy to the holding characteristics of the toggle mechanism. The locking mechanism can be interlocked to a pressure alert system to ensure any differential pressure condition contained within the closure is detected prior to disengaging the locking mechanism and actuating the toggle mechanism.

A female coupling component for a cam and groove coupling, consisting of a chamber mounted to or built into the exterior of the female coupling component, containing a latching member to be used as a safety lock when used in conjunction with a male coupling component. The latching member will interlock with a radial groove on a male coupling component. To unlock the female coupling component, an intentional movement including pushing, twisting, and/or pulling, etc. of the latching member is applied such a way as to allow the male component to be inserted or removed. The female cam and groove coupling will work on any like-sized male coupling component (i.e., 3 female to 3 male) without any modifications necessary to the male coupling required.

An apparatus for hydrostatic testing of openings in items surrounded by a flange, such as flanged pipe sections, flanged pipelines, flanged hose assemblies, as well as other flanged equipment requiring periodic pressure testing. The apparatus is clamp like device that easily can be clamped onto a flange of a flanged item to be tested, without the need for conventional nuts and bolts. The instant apparatus is more efficient and safer than conventional apparatus used for hydrostatic testing.

A device for preventing refrigerant leaks in air conditioning system service ports includes a quick coupler for engaging the service port. A main body is disposed adjacent the coupler. A stem is movable inside the main body and a first sealing element is adjacent the stem. A head which is fastened to the main body has an internal thread and a second sealing element is disposed within the head. A shaft has an external thread to be screwed into the internal thread of the head. The shaft has an end with a recess to be engaged by a tool and the shaft has a free end remote from the recess for contacting the second sealing element, for pushing the second sealing element against the stem and for pushing the first sealing element adjacent the stem against an end of the service port upon turning the shaft.

A temporary mechanical and fluidic connection with an anchor wall of a subsea tubular may use a substantially solid, reusable lid for a subsea tubular, which comprises a substantially solid upper surface, a predetermined set of lid anchors (20), a predetermined set of selectively activated valves (30), a seal (40) configured to engage an internal wall (101) of the subsea tubular and create a seal between substantially solid upper surface and the internal wall of the subsea tubular, a connector (50), and a controller (60) by maneuvering the substantially solid, reusable lid proximate an open end (102) of a subsea tubular (100), attaching the substantially solid, reusable lid to the open end of the subsea tubular, using the lid anchors (20) to secure the substantially solid, reusable lid to the open end of the subsea tubular, and operatively engaging the seal (40) to create an occlusive seal between substantially solid upper surface and an internal wall (101) of the subsea tubular.

A device for preventing refrigerant leaks in air conditioning system service ports includes a coupler to be coupled to the service port. A main body has a longitudinal direction and is disposed adjacent the coupler in the longitudinal direction. A stem is movable inside the main body in the longitudinal direction. A sealing element is disposed adjacent the stem. A head which is fastened to the main body has an internal thread, and a handle has a shaft with an external thread to be screwed into the internal thread of the head. The shaft has a free end remote from the handle for contacting the stem and pushing the sealing element adjacent the stem against an end of the service port upon turning the handle.

A system comprises an annular gasket, a grip ring assembly including a plurality of distinct grip ring segments separated from one another by slots that interrupt an otherwise annular shape of the grip ring assembly, a spacer that fills the slots, couples the grip ring segments to one another, and maintains alignment of the grip ring segments, a radially-innermost surface having circumferential pipe-gripping teeth, and a radially-outermost surface, wherein the spacer has an elastic modulus configured to improve engagement of the annular gasket with a radially-outward facing surface of a pipe prior to the pipe-gripping teeth biting into the radially-outward facing surface of the pipe when the grip ring assembly is deformed such that sizes of the slots decrease, and an annular gland including an inner surface that faces toward the radially-outermost surface of the grip ring assembly.

A closure for pipelines carrying a fluid under pressure, the closure includes at one or more seals located on a vertical sealing face of the barrel collar along a leak pathway between a horizontal sealing face of the barrel collar and an ambient environment. In some embodiments, the horizontal sealing face includes a primary seal. The one or more seals are adapted to prevent the escape of fluids having a lower molecular weight than that of the main pipeline product or fluid contained by the closure, and is arranged to alter a path of a leak pathway to the ambient environment and to cause at a pressure drop across the one or more seals. The closure may also include a leak check valve for blowdown.

Device (1) for closed systems for equalization of pressure surges, having an outlet nozzle (2), on which an impact plate (3) is provided and a hinged cover (4) is mounted pivotably, wherein the hinged cover (4) lies in a rest position (5) on the outlet nozzle (2) and in an open position (6) bears on the impact plate (3), wherein at least one holding-closed device (7) is provided, which presses the hinged cover (4) in the rest position (5) against the outlet nozzle (2) and in the case of a pressure surge releases the hinged cover (4), wherein the device has a control unit (8) that controls the holding-closed device (7).

A device for preventing refrigerant leaks in air conditioning system service ports includes a coupler to be coupled to the service port. A main body has a longitudinal direction and is disposed adjacent the coupler in the longitudinal direction. A stem is movable inside the main body in the longitudinal direction. A sealing element is disposed adjacent the stem. A head which is fastened to the main body has an internal thread, and a handle has a shaft with an external thread to be screwed into the internal thread of the head. The shaft has a free end remote from the handle for contacting the stem and pushing the sealing element adjacent the stem against an end of the service port upon turning the handle.