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US 4,007,705 AGranted
Apparatus for treating a cylindrical object
AssigneeDND Corporation
InventorsC. Richard Sherer, Jack Webber
Life of this patent
Estimating the term…
Abstract
Apparatus for temporary positioning about a cylindrical object such as an underwater pipeline or the like for mounting and indexing a tool across the surface of the pipeline for treating same.
Claims37
Apparatus for temporary positioning about a generally cylindrical object for indexing a tool across the surface thereof, comprising:
- a frame assembly and means for temporarily opening said frame assembly to receive a cylindrical object;
- a boom assembly including a boom and a boom head, said boom head including tool mount means adapted to mount a tool for movement with said boom head;
- indexing means for moving said boom assembly longitudinally and circumferentially of said pipe surface thereby positioning said tool to perform a designated treatment on said cylindrical object;
- said indexing means including rotation hydraulic control means for moving said boom assembly through a predesignated angular increment and boom hydraulic control means for moving said boom assembly through a predesignated length of movement in first and second longitudinal directions;
- and
- said index means including intercontrol means operatively interconnecting said rotation hydraulic control means and said boom hydraulic control means for operating said boom assembly for movement longitudinally and circumferentially in any desired time relationship.
3 more elements
Apparatus for temporary positioning about a generally cylindrical object for indexing a tool across the surface thereof, comprising:
- a frame assembly and means for temporarily opening said frame assembly to receive a cylindrical object;
- a boom assembly including a boom and a boom head, said boom head including tool mount means adapted to mount a tool for movement with said boom head;
- indexing means for moving said boom assembly longitudinally and circumferentially of said pipe surface thereby positioning said tool to perform a designated treatment on said cylindrical object;
- said frame assembly including first and second semi-cylindrical frame sections pivotally connected together and pivot means for pivoting said frame sections between an open position to receive said pipe and a closed position with said cylindrical object positioned within said frame sections;
- an annular gear ring having first and second gear sections mounted with said first and second frame sections;
- and
- gear pivot means mounting said gear sections for pivotal movement between open and closed positions with said first and second frame sections.
4 more elements
Dependencies are inferred from the claim text.