Dual hardness sealing elements for blowout preventer

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United States of America Patent

PATENT NO 11761287
SERIAL NO

17426682

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Abstract

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The present invention relates to sealing elements for blowout preventers comprising a sealing interface region, and a second region, wherein said sealing interface region is formed of a first polymer and said second region is formed of a second polymer, the first and second polymers having different Shore A hardnesses, including sealing elements made of dual hardness polyurethane.

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Patent Owner(s)

Patent OwnerAddress
LANXESS CORPORATION111 RIDC PARK WEST DRIVE LAW & INTELLECTUAL PROPERTY DEPARTMENT PITTSBURGH PA 15275-1112

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burdzy, Matthew P South Windsor, US 24 139
Peter, Thomas Harald Southbury, US 5 24

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