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US 5,628,345 AGranted
Point repair system for conduits
AssigneeAmerican Pipeline Supply, Corp.
InventorBenjamin T. Fisco
Life of this patent
Estimating the term…
Abstract
A repair system for repairing faults in a conduit. A protective skirt protects the leading edge of a repair sleeve on an inflatable mandrel. One or more straps hold the repair sleeve in position as the mandrel is inserted into the conduit. A release liner facilitates the removal of the mandrel from the repair sleeve after the resin in the repair sleeve has been cured. A calibrated hose within the mandrel provides a substantially constant temperature along the length of the mandrel.
Claims8
An apparatus for repairing a fault in a conduit, comprising:
- an inflatable mandrel insertable into said conduit proximate said fault;
- a repair sleeve positioned about said mandrel and sufficiently large to cover said fault;
- and
- a fastener which fixes said repair sleeve in position relative to said mandrel during the insertion of said mandrel into said conduit, said fastener being remotely releasable prior to inflation of said mandrel.
1 more element
A method for repairing a fault in a conduit, comprising the steps of:
- attaching a repair sleeve to an inflatable mandrel with a releasable fastener;
- inserting said inflatable mandrel into said conduit to a location proximate said fault;
- and
- releasing said fastener so as to detach, at least partially, said repair sleeve from said inflatable mandrel prior to inflation of said mandrel and permanent engagement of said repair sleeve to an inner circumferential surface of said conduit.
1 more element
Dependencies are inferred from the claim text.