Method and apparatus for heating heat-shrinkable pipe sleeves

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United States of America Patent

PATENT NO 9669580
SERIAL NO

14356976

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Abstract

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A heat-delivery apparatus (12) heats a heat-shrinkable sleeve (10) on a pipe (2). The heat-delivery apparatus (12) includes one or more heater elements (20) which define an interior heating surface that surrounds the sleeve (10). An air space is thus defined between the exterior of the sleeve (10) and the interior heating surface. The flow of air, that would otherwise be generated by the step of applying heat, within said air space is controlled or restricted for example by means of fins (50, 50s, 60) that control or restrict the airflow, fully or partially sealing the air space with one or more sealing members (70), or fans (80) that generate an opposing airflow (82).

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Patent Owner(s)

Patent OwnerAddress
SAIPEM S P AVIA MARTIRI DI CEFALONIA 67 20097 SAN DONATO MILANESE (MI) ITALY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bregonzio, Valerio San Giuliano Milanese, IT 10 33
Cittadini, Bellini Serafino Ascoli Piceno, IT 5 25

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