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US 4,284,107 AGranted
Fracture arrestor for a pipeline
AssigneeInterNorth, Inc.
InventorRonald D. Grose
Life of this patent
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AssigneeInterNorth, Inc.
InventorRonald D. Grose
Estimating the term…
A fracture or crack arrestor assembly is described for insertion into a pipeline formed of a plurality of sections to prevent the propagation of fractures in the pipeline. The crack arrestor assembly includes a body portion which is generally cylindrical in shape and which has opposite ends in open communication with the pipeline. The body portion includes wall portions which are sloped inwardly from each end thereof to an intermediate wall portion which forms a reduced diameter at the outer surface of the body portion. A cylindrical reinforcing member embraces the reduced diameter portion of the body portion. A cylindrical cover or shield is secured to and embraces the body portion and has approximately the same outside diameter as the pipeline to facilitate wrapping or coating of the pipeline. The cavity between the interior of the cover and the body portion may be filled with a suitable filler material.
A crack arrestor assembly for insertion in at least one intermediate point in a pipeline formed of a plurality of sections of pipe to prevent the propagation of pipeline fractures, said crack arrestor assembly including a body portion having opposite ends which are in open communication with sections of said pipeline at both ends of said crack arrestor, said body portion including a wall which is sloped inwardly from each end thereof to an intermediate point thereby forming a reduced diameter portion at the outer surface of said body portion, and a reinforcing means embracing said reduced diameter portion.
Dependencies are inferred from the claim text.