US Patent 7967299 Body to bonnet seal on a blowout preventer

Patent 7967299 was granted and assigned to National Oilwell Varco on June, 2011 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

National Oilwell Varco

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7967299

Patent Inventor Names

Perry Lee McClanahan0

Date of Patent

June 28, 2011

Patent Application Number

12504183

Date Filed

July 16, 2009

Patent Primary Examiner

‌

Vishal Patel

Patent abstract

A seal comprises a metal seal ring with a first slanted mating surface for sealing engagement with a mating surface on a body and a second slanted mating surface for sealing engagement with a mating surface on a bonnet. The mating surfaces are the same angle as measured from the axis of the ram of the BOP. The seal also defines opposing slanting surfaces which provide a degree of flexure to the seal for sealing engagement. With the application of pressure on the inside surfaces of the seal, the mating surfaces are pressed even harder against the mating surfaces of the body and bonnet.