Vertical stressed mooring tether in a floating oil platform
AssigneeVickers, Incorporated
InventorWilliam D. Stevenson
Life of this patent
Estimating the term…
Abstract
A floating platform intended to be anchored to the sea bed incorporates a substantially vertical tether. The tether is fitted with a gas-operated tension spring device capable of generating an elastic tensile force in the tether. Means is provided for varying the nominal tensile force which the spring device is capable of exerting. The tether may include an adjustor nut movable along a screw-threaded portion of the tether so as to be engageable with an adjustor nut adaptor supported by the platform.
Claims6
A mooring tether arranged to be connected between a floating oil platform and an anchorage on the sea bed incorporating a tether member, a connector fitted to one end of the tether member and arranged to be connected to an anchorage on the sea bed, a screw-threaded section attached to the other end of the tether member, an adjustor nut movable along the screw-threaded section, an adjustor nut adaptor penetrated by the screw-threaded section and supported on the platform, and a gas-operated tension spring device coupled to the upper end of the screw-threaded section and arranged to apply an elastic tensile force between the upper end of the tether and the platform.
A mooring tether arranged to be connected between a floating oil platform and an anchorage on the sea bed incorporating a tether member, a connector fitted to one end of the tether member and arranged to be connected to an anchorage on the sea bed, a fixed abutment attached to the other end of the tether member, at least one variable spacer device interposed between the fixed abutment and the platform, said spacer device being arranged to be capable of maintaining a chosen spaced relationship between the top of the tether and the platform, and a gas-operated tension spring device coupled to the upper end of the tether member and arranged to apply an elastic tensile force between the upper end of the tether and the platform.
Dependencies are inferred from the claim text.