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US 10,166,714 B2Granted
Roller and method for compressing protective sheeting of polymer material around a pipeline
AssigneeSaipem S.P.A.
InventorsCristian Scaini, Valerio Bregonzio
Life of this patent
Estimating the term…
Abstract
A roller for compressing protective sheeting of polymer material around a pipeline rotates about a given or designated axis of rotation and has a shaft; and a first tubular portion which extends about the shaft and varies in elasticity along the given or designated axis of rotation; more specifically, the first tubular portion is of greater elasticity at the ends of the roller than at the center of the roller.
Claims28
A pipeline protective sheeting compression roller comprising:
- a shaft configured to rotate about an axis of rotation;
- at least one first tubular portion which extends about the shaft and is configured to rotate about the axis of rotation, wherein the at least one first tubular portion varies in elasticity along the axis of rotation such that when the at least one first tubular portion compresses a protective sheeting of polymer material around a cutback of a pipeline including a raised portion, part of the at least one first tubular portion deforms for the raised portion of the pipeline to not alter a thickness of the protective sheeting;
- and
- a second tubular portion which is fitted about the first tubular portion and includes a plurality of cylindrical walls movable with respect to one another and arranged end to end along the axis of rotation.
1 more element
A roller comprising:
- a shaft;
- a first tubular portion which extends about the shaft and which varies in elasticity along an axis of rotation;
- a second tubular portion fitted about the first tubular portion and including:
- a plurality of central cylindrical walls arranged end to end along the axis of rotation, wherein each of the central cylindrical walls is radially slidable with reference to the axis of rotation with respect to at least an adjacent one of the cylindrical walls, and at least one of the plurality of central cylindrical walls defines a groove, and
- two intermediate cylindrical walls located at opposite ends of the plurality of central cylindrical walls;
- and
- a sheath configured to define an outer surface configured to be positioned contacting a protective sheeting of polymer material configured to be compressed around a cutback of a pipeline.
4 more elements
A roller comprising:
- a shaft;
- and
- a first tubular portion which extends about the shaft and which varies in elasticity along an axis of rotation;
- a second tubular portion fitted about the first tubular portion and including:
- a plurality of central cylindrical walls arranged end to end along the axis of rotation, two intermediate cylindrical walls located at opposite ends of the central cylindrical walls, and
- a plurality of lateral cylindrical walls located at opposite ends of the roller, wherein the central cylindrical walls are each radially slidable with reference to the axis of rotation with respect to adjacent cylindrical walls;
- and
- a sheath configured to define an outer surface configured to be positioned contacting a protective sheeting of polymer material configured to be compressed around a cutback of a pipeline.
5 more elements
Dependencies are inferred from the claim text.