Internal blow out preventer ball and seat

Details Internal blow out preventer ball and seat Internal blow out preventer ball and seat

2006-10-17

2006-10-17

Keasel, Eric (Department: 3753)

Fluid handling

With casing, support, protector or static constructional...

Jacketed

C137S613000, C251S315010, C251S315160

Reexamination Certificate

active

07121295

ABSTRACT:
An internal blow out preventer is provided that includes a ball valve including a tubular assembly having a central passageway with upper and lower seats mounted therein. A ball is rotatably received between the upper and lower seats and includes an external surface and a central opening, wherein the central opening includes an undercut. A protective coating is applied to both the external surface and the undercut of the ball.

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