US Patent 7976247 Dual pressure cylinder
Patent 7976247 was granted and assigned to Atp Oil & Gas Corporation on July, 2011 by the United States Patent and Trademark Office.
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A self contained dual pressure cylinder for use in tensioner assemblies for oil and natural gas floating vessels. The self contained dual pressure cylinder can have a high pressure outer barrel surrounding a high pressure inner barrel, forming a high pressure gas channel, a low pressure outer barrel surrounding a low pressure inner barrel, forming a low pressure fluid channel. A high pressure gas port connected to a high pressure gas reservoir, a low pressure fluid port connected to a low pressure gas reservoir, a low pressure fluid compression area connected to the low pressure fluid port, a hollow rod slidingly engaged each inner barrel, a dual pressure capture plate with moveable rod seals and moveable rod wear, a piston a low pressure elastomeric seal, a low pressure/high pressure separator, and a high pressure elastomeric seal.
US Patent 07976247 Dual pressure cylinder US Patent 7976247 Dual pressure cylinder
US Patent 07976247 Dual pressure cylinder
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