Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1984-03-12
1987-03-03
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
72369, F16L 104, B21D 900
Patent
active
046472550
ABSTRACT:
A pipe bend restrictor for controlling the intentional deformation of a pipe to form a bend. The apparatus includes a bullnose for connection to the end of the pipe and a plurality of support washers and a backup ring mounted behind the bullnose and along the length of the pipe being bent. A protection sleeve is positioned over the pipe surface to interface between it and the washers. A specific washer configuration ensures that the washer supporting any given section of pipe pivots about an axis that passes through the axis of the pipe, as near as possible to the section of pipe which it supports.
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patent: 4148127 (1979-04-01), Somerville
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Corbin David H.
Novacorp International Consulting Ltd.
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