Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Reexamination Certificate
2001-11-06
2008-11-04
Singh, Sunil (Department: 3672)
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
C405S170000
Reexamination Certificate
active
07445404
ABSTRACT:
A single-module deployable bolted flange connection apparatus (10) makes up standard flange joints (24, 32) for various pipeline tie-in situations, such as spool piece connection and flowline-tree connections, without the use of divers and auxiliary multiple pieces of equipment. An outer Flange Alignment Frame (FAF) (14), carries one or more claws (38) for grabbing the pipe/spool to provide flange alignment. The claws are suspended and driven by a novel arrangement of five hydraulic rams (412-420) A crash-resistant inner frame (148) houses complete connection tooling (150, 152etc.) The tooling performs the final alignment steps, inserts the gasket and studs, applies the required tension, and connects the nuts. Studs and nuts are stored separately from the tooling in an indexed carousel, to permit multiple operations, reverse operations (disconnection), and re-work of failed steps, all without external intervention.
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Camping Michael
Giles John J.
Wishart Graham
Acergy UK Limited
Sheridan & Ross P.C.
Singh Sunil
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