Dedicated, unmanned, subsea tools used for installation and inspection, maintenance, and repair (IMR) tasks that require lift and/or handling capacity beyond that of free-swimming ROV systems.

Dedicated, unmanned, subsea tools used for installation and inspection, maintenance, and repair (IMR) tasks that require lift and/or handling capacity beyond that of free-swimming ROV systems.

A submarine which is a nearly neutral buoyancy submarine that is manipulated from a mother ship by an umbilical.

A submarine which is a nearly neutral buoyancy submarine that is manipulated from a mother ship by an umbilical.

Subsea infrastructure class that contains classes of artefacts which are structures.

Subsea infrastructure class that contains classes of artefacts which are structures.

Suction piles are a form of fixed platform anchor in the form of an open bottomed tube embedded in the sediment and sealed at the top while in use so that lifting forces generate a pressure diffential which holds the caisson down

Suction piles are a form of fixed platform anchor in the form of an open bottomed tube embedded in the sediment and sealed at the top while in use so that lifting forces generate a pressure diffential which holds the caisson down

A device that is made as a tool to be used for a subsea purpose.

A device that is made as a tool to be used for a subsea purpose.

A umbilical for use subsea or between a surface station (e.g. platform) and a subsea Installation.

A umbilical for use subsea or between a surface station (e.g. platform) and a subsea Installation.

Is an artefact intended to collect a heavy phase by making use of gravity.

Is an artefact intended to collect a heavy phase by making use of gravity.

The external fabric of a building that is visible above ground.

The external fabric of a building that is visible above ground.

Equipment used to direct surface water flow.

Equipment used to direct surface water flow.

A physical object that is protecting against a large but momentary increase in the voltage of an electric circuit.

A physical object that is protecting against a large but momentary increase in the voltage of an electric circuit.

A check valve that is a check valve where the closure member is a disc which swings freely on a hinge and which opens automatically when flow is established and closes automatically when flow ceases or is reversed.

A check valve that is a check valve where the closure member is a disc which swings freely on a hinge and which opens automatically when flow is established and closes automatically when flow ceases or is reversed.

A switchgear and controlgear bearing a set of switches for connecting and disconnecting the various circuits of an electrical system, as of a telegraph, telephone, etc.

A switchgear and controlgear bearing a set of switches for connecting and disconnecting the various circuits of an electrical system, as of a telegraph, telephone, etc.

A physical object that is a general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures.