Patent Drawing of Engine - Cameron EVO BOP Patent (Stack) Public domai...
Annotated Patent Drawing of a Blowout Preventer Stack, U.S. Patent 7,300,033 (2007). Legend was added and figure locations were shifted. /* */
Patent drawing - Cameron EVO BOP Patent Public domain image
Annotated Patent Drawing of Cameron International Corporation's EVO Blowout Preventer, U.S. Patent 7,300,033 (2007). Legend was added and figure locations were shifted. /* */
Patent drawing - Cameron Ram-type Blowout Preventer (1922) - plan view...
Cameron Ram-type Blowout Preventer (1922) U.S. Patent 1,569,247. Text was removed from figure and minor cleanup of the scan was done with Microsoft Paint.
Patent drawing - Cameron Ram-type Blowout Preventer (1922) Public doma...
Cameron Ram-type Blowout Preventer (1922) U.S. Patent 1,569,247. Text was removed from figure and minor cleanup of the scan was done with Microsoft Paint.
Patent drawing - Original Shaffer Spherical BOP Patent1 Public domain ...
Patent Drawing of the Original Spherical Blowout Preventer, by The Rucker Company (Shaffer), U.S. Patent 3,667,721 (1972).
Patent drawing - Varco Schaffer Ram BOP Stack Public domain image
Patent Drawing for Varco Shaffer Shear Ram Assembly, U.S. Patent 6,719,042 (2004), with legend added. <!/* */
MMS 463 A shear ram forces
forces at work in an oil well shear ram blowout preventer Figure 2.1 in SHEAR RAM CAPABILITIES STUDY for U.S. Minerals Management Service, Requisition No. 3-4025-1001, September 2004.